Post on 15-May-2020
AUTOMATIC TRANSMISSION SERVICE GROUP9200 S. DADELAND BLVD.
SUITE 720MIAMI, FL 33156(305) 670-4161
DALE ENGLANDCHIEF EXECUTIVE OFFICER
ED KRUSETECHNICAL CONSULTANT
JIM DIALSR.TECHNICAL CONSULTANT
GREGORY LIPNICKTECHNICAL CONSULTANT
JERRY GOTTTECHNICAL CONSULTANT
PETE LUBANTECHNICAL SUPERVISOR
WAYNE COLONNAPRESIDENT
DAVID CHALKERTECHNICAL CONSULTANT
STANTON ANDERSONTECHNICAL CONSULTANT
The USA built BAXA and the JAPAN built MAXA and the M6HA transaxle is part of a new generation of 3 shaft transaxles. The features that make these units unique are the use of 6 solenoids, 2 pressure switches and NO one-way clutches.The combination of the PCM switching the 3 shift solenoids on and off differently during the shifts then they are while in gear while the 2 pressure control solenoids are controlling the shift feel as well as converter clutch application which is why there is only 1 TCC solenoid.Both shift timing and shift feel for the BAXA/MAXA/M6HA are computer controlled which requires a full complement of sensors.The clutch apply pistons are unique as well in as much as 2 of them have the familiar reed valves and 2 of them do not. All pertinent information for teardown and assembly as well as some electrical diagnosis, covering model years 1997 to 2001 has been included in this Techtran® manual.
INTRODUCTION
HONDA ACCORD BAXA/MAXAHONDA PRELUDE M6HA
The information and part numbers contained in this manual have been carefully compiled from industry sources known for their reliability, however, A.T.S.G. does not guarantee their accuracy.
A.T.S.G. would like to thank Honda Motor Co. for the illustrations and information contained in this manual.
GERALD CAMPBELLTECHNICAL CONSULTANT
JON GLATSTEINELECTRICAL CONSULTANT
ROLAND ALVAREZTECHNICAL CONSULTANT
1
HONDA ACCORD BAXA/MAXAHONDA PRELUDE M6HA
3457131418192022232425262930313536373843444647495061859495101106109110112
Overview........................................................................................................Clutch Application Chart............................................................................Component Locator.....................................................................................Solenoid Function Chart..............................................................................Lock-Up Operation......................................................................................Solenoid Operation......................................................................................Pressure Switch Diagnosis...........................................................................Sport Shift Mode (Prelude Only)................................................................Grade Logic Control System.......................................................................Code Retrieval Procedure (Accord)............................................................Code Clearing Procedure (Accord).............................................................Code Retrieval Procedure (Prelude)...........................................................Code Clearing Procedure (Prelude)............................................................Diagnostic Trouble Code Definition Charts...............................................TCM Circuit Diagram And Terminal Locations (Accord).......................TCM Circuit Diagram And Terminal Locations (Prelude)......................Trouble Shooting Guides..............................................................................A/T Gear Position Switch Continuity Chart..............................................Oil Pressure Chart........................................................................................Automatic Transmission Fluid Requirements............................................Transmission Removal..................................................................................Transmission Disassembly - End Cover & Idler Gears (BAXA)..............Transmission Disassembly - End Cover & Idler Gears ( M6HA)............Transmission Disassembly - Transmission Housing (BAXA)...................Transmission Disassembly - Transmission Housing (M6HA)...................Transmission Disassembly - Continued.......................................................Transmission Disassembly - Valve Body.....................................................Transmission Disassembly, Inspection & Reassembly...............................Transmission Reassembly.............................................................................Torque Converter And Drive Plate.............................................................Transmission Installation.............................................................................Specifications (BAXA)..................................................................................Specifications (M6HA)..................................................................................Special Tools..................................................................................................Bulletins.........................................................................................................Notes...............................................................................................................
INDEX
AUTOMATIC TRANSMISSION SERVICE GROUP9200 S. DADELAND BLVD. STE 720
MIAMI, FLORIDA 33156(305) 670-4161
2
HONDA ACCORD BAXA/MAXAHONDA PRELUDE M6HA
SHIFT CONTROLSOLENOID "C"
(SCS"C")BROWN CONNECTOR
SHIFT CONTROLSOLENOID "B"
(SCS"B")BLACK CONNECTOR
CLUTCH PRESSURECONTROL SOLENOID "B"
(CPCS"B")BLACK CONNECTOR
MAINSHAFTSPEED SENSOR
COUNTERSHAFTSPEED SENSOR
CLUTCH PRESSURECONTROL SOLENOID "A"
(CPCS"A")BROWN CONNECTOR
3rd GEARPRESSURE SWITCH
(Accord Only)
2nd GEARPRESSURE SWITCH
SHIFT CONTROLSOLENOID "A"
(SCS"A")
LOCK-UP CONTROL SOLENOID
(LUCS)
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
3
BAXA/MAXA/M6HACLUTCH APPLICATION CHART
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
4
HONDA ACCORD BAXA/MAXACOMPONENT LOCATOR
POWERTRAIN CONTROLMODULE (PCM)
DATA LINKCONNECTOR (DLC)
COUNTERSHAFTSPEED SENSOR
2ND CLUTCHPRESSURE SWITCH
A/T GEARPOSITION SWITCH
"A & B" CLUTCHPRESSURE CONTROLSOLENOID ASSEMBLY
MAINSHAFTSPEED SENSOR
3RD CLUTCHPRESSURE SWITCH
SHIFT CONTROLSOLENOID "C"
SHIFT CONTROLSOLENOID "B"
LOCK-UP CONTROL&SHIFT CONTROL
SOLENOID "A" ASSEMBLY
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
5
HONDA PRELUDE M6HACOMPONENT LOCATOR
TRANSMISSIONCONTROL MODULE (TCM)
ENGINE CONTROLMODULE (ECM)
2ND CLUTCHPRESSURE SWITCH
"A & B" CLUTCHPRESSURE CONTROLSOLENOID ASSEMBLY
SHIFT CONTROLSOLENOID "C"
SHIFT CONTROLSOLENOID "B"
LOCK-UP CONTROL&SHIFT CONTROL
SOLENOID "A" ASSEMBLY
COUNTERSHAFTSPEED SENSOR
A/T GEARPOSITION SWITCH
MAINSHAFTSPEED SENSOR
VEHICLESPEED SENSOR
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
6
SOLENOID CONTROL
SHIFT CONTROLShifting is done in relation to throttle demand with the TCM/PCM controlling shift feel through A/T Pressure Control Solenoids "A" and "B". Shift timing is controlled by Shift Control Solenoids "A", "B", and "C" during normal upshifts and downshifts as well as grade logic control.The shift solenoid firing order is different during a shift than it is when the transmission is in gear as shown in the solenoid "ON/OFF" chart below.
REVERSE INHIBIT CONTROLWhen reverse is selected while the vehicle is moving at a speed greater than 6 mph (10km/h), the PCM/TCM will command Shift Control Solenoid "B" and "C" "ON" which is a 1st gear command which strokes the reverse CPC valve which blocks the reverse servo and 4th clutch circuits preventing reverse engagement.
D3D4
P
N
SHIFT LEVERPOSITION
GEAR POSITIONSHIFT SOLENOID
A B C
SHIFTING FROM PARK OR NEUTRAL TO REVERSE
2
R
1
OFF OFFONPARK
WHILE IN REVERSE
REVERSE INHIBIT
NEUTRAL
SHIFTING FROM NEUTRAL
WHILE IN FIRST
SHIFTING BETWEEN FIRST AND SECOND
WHILE IN SECOND
SHIFTING BETWEEN SECOND AND THIRD
WHILE IN THIRD
SHIFTING BETWEEN THIRD AND FOURTH
WHILE IN FOURTH
SECOND
FIRST
OFF ON ON
OFF ON OFF
OFF ON ON
OFF ON OFF
ONON ON
OFF ON ON
ON ON ON
ON ON OFF
ON OFFOFF
ON OFF ON
ONOFFOFF
OFF OFF OFF
OFFONON
OFF ON ON
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
7
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
8
1st
Clu
tch
3rd
Clu
tch
3rd
Clu
tch
Pre
ssu
re S
wit
ch2n
d C
lutc
hP
ress
ure
Sw
itch
2n
d C
lutc
h4t
h C
lutc
h"
ON
"
EN
GA
GE
ME
NT
FR
OM
NE
UT
RA
L T
O R
EV
ER
SE
AN
D R
EV
ER
SE
SO
LE
NO
ID A
PP
LIC
AT
ION
NE
UT
RA
L T
O R
EV
ER
SE
TR
AN
SIT
ION
RE
VE
RS
E
Sel
ecto
r p
osi
tio
n
Sel
ecto
r p
osi
tio
n
Gea
r
Gea
r
Pre
ssu
re M
ode
Pre
ssu
re M
ode
SC
S "
A"
SC
S "
A"
SC
S "
B"
SC
S "
B"
SC
S "
C"
SC
S "
C"
CP
CS
"A
"
CP
CS
"A
"
CP
CS
"B
"
CP
CS
"B
"
LU
CS
LU
CS
D4
D4
R R
OF
F
OF
F
ON
ON
ON
OF
FO
FF
OF
Fm
odu
lati
ng
OF
F
OF
FO
FF
CP
C
LIN
E
Su
mm
ary:
Sh
ift
Sol
enoi
d "
C"
is
ON
wh
ich
sh
uts
off
oil
to
the
bore
plu
g si
de o
f th
e R
ever
se C
PC
val
ve.
Lin
e P
ress
ure
is
sen
t to
th
e R
ever
se C
PC
val
ve w
hic
h i
s co
ntr
olle
d by
th
e m
odu
lati
on o
f C
lutc
h P
ress
ure
Con
trol
Sol
enoi
d va
lve
"A
".
Th
is c
ontr
ols
the
appl
icat
ion
of
the
4th
clu
tch
via
th
e S
ervo
Val
ve a
nd
Man
ual
Val
ve.
Su
mm
ary:
Sh
ift
Sol
enoi
d "
C"
is
turn
ed O
FF
wh
ich
str
okes
th
e R
ever
se C
PC
val
ve.
Th
is s
wit
ches
4th
clu
tch
pre
ssu
re
from
CP
C m
ode
to L
ine
pres
sure
mod
e vi
a th
e S
ervo
Val
ve a
nd
Man
ual
Val
ve.
NE
UT
RA
L
Sel
ecto
r p
osi
tio
nG
ear
Pre
ssu
re M
ode
SC
S "
A"
SC
S "
B"
SC
S "
C"
CP
CS
"A
"C
PC
S "
B"
LU
CS
NN
OF
FO
NO
FF
OF
FO
FF
OF
Fn
/a
SOLENOID CONTROL
SOLENOID CONTROL
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
9
1st
Clu
tch
"O
N"
3rd
Clu
tch
3rd
Clu
tch
Pre
ssu
re S
wit
ch2n
d C
lutc
hP
ress
ure
Sw
itch
2nd
Clu
tch
4th
Clu
tch
EN
GA
GE
ME
NT
FR
OM
NE
UT
RA
L T
O D
4 "
1st"
GE
AR
SO
LE
NO
ID A
PP
LIC
AT
ION
NE
UT
RA
L
NE
UT
RA
L T
O D
4 -
1st
GE
AR
TR
AN
SIT
ION
D4
- 1
st G
EA
R
Sel
ecto
r po
siti
on
Sel
ecto
r po
siti
on
Sel
ecto
r po
siti
on
Gea
r
Gea
r
Gea
r
Pre
ssu
re M
od
e
Pre
ssu
re M
od
e
Pre
ssu
re M
od
e
SC
S "
A"
SC
S "
A"
SC
S "
A"
SC
S "
B"
SC
S "
B"
SC
S "
B"
SC
S "
C"
SC
S "
C"
SC
S "
C"
CP
CS
"A
"
CP
CS
"A
"
CP
CS
"A
"
CP
CS
"B
"
CP
CS
"B
"
CP
CS
"B
"
LU
CS
LU
CS
LU
CS
N D4
D4
N 1st
1st
OF
F
ON
OF
F
ON
ON
ON
OF
F
ON
ON
OF
F
mod
ula
tin
g
OF
F
OF
F
OF
F
OF
F
OF
F
OF
F
OF
F
n/a
CP
C
LIN
E
Su
mm
ary:
Sh
ift
Sol
enoi
ds "
A"
an
d "
C"
are
tu
rned
ON
to
con
nec
t 1s
t cl
utc
h a
pply
oil
to
the
spri
ng
side
an
d ce
nte
r of
C
PC
val
ve "
A."
Clu
tch
Pre
ssu
re C
ontr
ol S
olen
oid
valv
e "
A"
oil
mod
ula
tes
on t
he
bore
plu
g si
de
of C
PC
val
ve "
A"
to
con
trol
1st
clu
tch
app
lica
tion
. Th
e 1s
t cl
utc
h i
s ap
plie
d w
ith
red
uce
d pr
essu
re, w
hic
h i
s C
PC
mod
e.
Su
mm
ary:
Sh
ift
Sol
enoi
d "
A"
is
turn
ed O
FF
wh
ich
sw
itch
es t
he
port
on
Sh
ift
Val
ve "
A"
fro
m C
PC
to
Lin
e P
ress
ure
. 1s
t C
lutc
h p
ress
ure
is
now
Lin
e P
ress
ure
SOLENOID CONTROL
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
10
1st
Clu
tch
3rd
Clu
tch
3rd
Clu
tch
Pre
ssu
re S
wit
ch2n
d C
lutc
hP
ress
ure
Sw
itch
"O
N"
2n
d C
lutc
h"
ON
"4t
h C
lutc
h
"1s
t" T
O "
2n
d"
UP
SH
IFT
AN
D "
2n
d"
GE
AR
SO
LE
NO
ID A
PP
LIC
AT
ION
D4
- 1s
t G
EA
R
D4
- 1
st T
O 2
nd
GE
AR
TR
AN
SIT
ION
D4
- 2n
d G
EA
R
Sel
ecto
r p
osi
tio
n
Sel
ecto
r p
osi
tio
n
Sel
ecto
r p
osi
tio
n
Gea
r
Gea
r
Gea
r
Pre
ssu
re M
od
e
Pre
ssu
re M
od
e
Pre
ssu
re M
od
e
SC
S "
A"
SC
S "
A"
SC
S "
A"
SC
S "
B"
SC
S "
B"
SC
S "
B"
SC
S "
C"
SC
S "
C"
SC
S "
C"
CP
CS
"A
"
CP
CS
"A
"
CP
CS
"A
"
CP
CS
"B
"
CP
CS
"B
"
CP
CS
"B
"
LU
CS
LU
CS
LU
CS
D4
D4
D4
2nd
2nd
1st
ON
ON
OF
F
ON
ON
ON
ON
ON
ON
ON
mod
ula
tin
gm
odu
lati
ng
OF
FO
FF
OF
F
OF
FO
FF
OF
F
CP
C
LIN
E
LIN
E
Su
mm
ary:
Sh
ift
Sol
enoi
ds "
A"
an
d "
C"
are
tu
rned
ON
to
con
nec
t 1s
t cl
utc
h a
pply
oil
to
the
spri
ng
side
an
d ce
nte
r of
C
PC
val
ve "
A."
Clu
tch
Pre
ssu
re C
ontr
ol S
olen
oid
valv
e "
A"
oi
l m
odu
late
s on
th
e bo
re p
lug
side
of
CP
C v
alve
"A
"
wh
ich
tu
rns
1st
clu
tch
pre
ssu
re b
ack
to C
PC
mod
e. C
lutc
h P
ress
ure
Con
trol
Sol
enoi
d va
lve"
B"
oil
mod
ula
tes
on t
he
bore
plu
g si
de o
f C
PC
val
ve "
B"
wh
ich
con
trol
s th
e ap
plic
atio
n o
f th
e 2n
d cl
utc
h.
Su
mm
ary:
Sh
ift
Sol
enoi
d "
C"
is
turn
ed O
FF
wh
ich
sw
itch
es 2
nd
clu
tch
pre
ssu
re t
o L
ine
pres
sure
mod
e vi
a th
e M
anu
al v
alve
, an
d co
nn
ects
th
e 1s
t cl
utc
h t
o an
exh
aust
via
Sh
ift
Val
ve "
C."
Clu
tch
Pre
ssu
re C
ontr
ol S
olen
oid
valv
e "
A"
is
turn
ed o
n t
o bl
ock
pres
sure
fro
m t
he
bore
plu
g si
de o
f C
PC
val
ve "
A."
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
11
1st
Clu
tch
3rd
Clu
tch
"O
N"
3rd
Clu
tch
Pre
ssu
re S
wit
ch"
ON
"
2nd
Clu
tch
Pre
ssu
re S
wit
ch
2nd
Clu
tch
4th
Clu
tch
"2n
d"
TO
"3r
d"
UP
SH
IFT
AN
D "
3rd
" G
EA
R S
OL
EN
OID
AP
PL
ICA
TIO
N
D4
- 2
nd
TO
3rd
GE
AR
TR
AN
SIT
ION
D4
- 3
rd G
EA
R
D4
- 2
nd
GE
AR
Sel
ecto
r po
siti
on
Sel
ecto
r po
siti
on
Sel
ecto
r po
siti
on
Gea
r
Gea
r
Gea
r
Pre
ssu
re M
ode
Pre
ssu
re M
ode
Pre
ssu
re M
ode
SC
S "
A"
SC
S "
A"
SC
S "
A"
SC
S "
B"
SC
S "
B"
SC
S "
B"
SC
S "
C"
SC
S "
C"
SC
S "
C"
CP
CS
"A
"
CP
CS
"A
"
CP
CS
"A
"
CP
CS
"B
"
CP
CS
"B
"
CP
CS
"B
"
LU
CS
LU
CS
LU
CS
D4
D4
D4
3rd
3rd
2n
d
ON
ON
ON
OF
F
OF
F
ON
OF
F
OF
F
ON
OF
F
ON
mod
ula
tin
gm
odu
lati
ng
OF
F
OF
F
OF
F
ON
OF
F
CP
C
LIN
E
LIN
E
Su
mm
ary:
Sh
ift
Sol
enoi
d "
B"
is
turn
ed O
FF
, w
hic
h s
trok
es S
hif
t V
alve
B,
to c
onn
ect
the
2nd
clu
tch
bac
k to
CP
C
valv
e "
B."
2n
d cl
utc
h p
ress
ure
is
chan
ged
to C
PC
mod
e th
ru t
he
mod
ula
tion
of
Clu
tch
Pre
ssu
re C
ontr
ol S
olen
oid
valv
e "
B"
act
ing
on t
he
bore
plu
g si
de o
f C
PC
val
ve "
B."
Clu
tch
Pre
ssu
re C
ontr
ol S
olen
oid
valv
e "
A"
act
ing
on t
he
bore
plu
g si
de o
f C
PC
val
ve "
A"
con
trol
s th
e ap
plic
atio
n o
f th
e 3r
d cl
utc
h.
Su
mm
ary:
Sh
ift
Sol
enoi
d "
C"
is
turn
ed O
N w
hic
h s
trok
es S
hif
t V
alve
"C
" a
nd
swit
ches
3rd
clu
tch
pre
ssu
re t
o L
ine
pres
sure
mod
e vi
a th
e M
anu
al v
alve
, an
d co
nn
ects
th
e 2n
d cl
utc
h t
o an
exh
aust
via
Sh
ift
Val
ve "
C."
SOLENOID CONTROL
SOLENOID CONTROL
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
12
1st
Clu
tch
3rd
Clu
tch
3rd
Clu
tch
Pre
ssu
re S
wit
ch2n
d C
lutc
hP
ress
ure
Sw
itch
2n
d C
lutc
h4t
h C
lutc
h"
ON
"
"3
rd"
TO
"4
th"
UP
SH
IFT
AN
D "
4th
" G
EA
R S
OL
EN
OID
AP
PL
ICA
TIO
N
D4
- 3
rd T
O 4
th G
EA
R T
RA
NS
ITIO
N
D4
- 4
th G
EA
R
D4
- 3r
d G
EA
R
Sel
ecto
r p
osi
tio
n
Sel
ecto
r p
osi
tio
n
Sel
ecto
r p
osi
tio
n
Gea
r
Gea
r
Gea
r
Pre
ssu
re M
od
e
Pre
ssu
re M
od
e
Pre
ssu
re M
od
e
SC
S "
A"
SC
S "
A"
SC
S "
A"
SC
S "
B"
SC
S "
B"
SC
S "
B"
SC
S "
C"
SC
S "
C"
SC
S "
C"
CP
CS
"A
"
CP
CS
"A
"
CP
CS
"A
"
CP
CS
"B
"
CP
CS
"B
"
CP
CS
"B
"
LU
CS
LU
CS
LU
CS
D4
D4
D4
4th
4th
2nd
OF
F
OF
F
ON
OF
F
OF
F
OF
F
ON
ON
OF
F
ON
OF
F
mod
ula
tin
gm
odu
lati
ng
OF
F
OF
F
OF
F
OF
F
ON
CP
C
LIN
E
LIN
E
Su
mm
ary:
Sh
ift
Sol
enoi
d "
A"
is
turn
ed O
FF
, w
hic
h s
trok
es S
hif
t V
alve
"A
," t
o co
nn
ect
the
3rd
clu
tch
bac
k to
CP
C
valv
e "
A"
." 3
rd c
lutc
h p
ress
ure
is
turn
ed t
o C
PC
mod
e th
ru t
he
mod
ula
tion
of
Clu
tch
Pre
ssu
re C
ontr
ol S
olen
oid
valv
e "
A"
act
ing
on t
he
bore
plu
g si
de o
f C
PC
val
ve "
A."
Clu
tch
Pre
ssu
re C
ontr
ol S
olen
oid
valv
e "
B"
oil
act
s on
th
e bo
re p
lug
side
of
CP
C v
alve
"B
" w
hic
h c
ontr
ols
the
appl
icat
ion
of
the
4th
clu
tch
.
Su
mm
ary:
Sh
ift
Sol
enoi
d "
C"
is
turn
ed O
FF
wh
ich
str
okes
Sh
ift
valv
e "
C."
Th
is s
wit
ches
4th
clu
tch
pre
ssu
re t
o L
ine
pres
sure
via
th
e M
anu
al v
alve
. C
lutc
h P
ress
ure
Con
trol
Sol
enoi
d va
lve
"A
" i
s O
N t
o bl
ock
pres
sure
to
the
bore
plu
g si
de o
f C
PC
val
ve "
A."
Th
e 3r
d cl
utc
h i
s co
nn
ecte
d to
an
exh
aust
via
Sh
ift
Val
ve "
C."
LOCK-UP CONTROLThe Lock-up Solenoid is an 'ON/OFF" solenoid which strokes the lock-up shift valve to turn lock-up "ON". The PCM/TCM controls lock-up apply feel by the use of the A/T Clutch Pressure Control Solenoids acting on the lock-up control and timing valves as soon as the Lock-up Solenoid is turned "ON" providing partial and full lock-up. Accord models attain lock-up in 3rd and 4th gears. Prelude models attain lock-up in 2nd, 3rd and 4th gears.
D4
- 4t
h G
EA
R-T
CC
AP
PL
IED
Sele
ctor
pos
ition
Gea
rP
ress
ure
Mod
eSC
S "A
"SC
S "B
"SC
S "C
"C
PC
S "A
"C
PC
S "B
"L
UC
S
D4
4th
OF
FO
FF
ON
mod
ulat
ing
ON
OF
FL
INE
Su
mm
ary:
Th
e L
ock-
up
Con
trol
Sol
enoi
d is
tu
rned
ON
wh
ich
dra
ins
the
oil
on t
he
spri
ng
side
of
the
Loc
k-u
p sh
ift
valv
e. T
he
com
pute
r co
ntr
ols
the
swit
chin
g of
Par
tial
, Hal
f, a
nd
Fu
ll C
onve
rter
C
lutc
h a
ppli
cati
on t
hru
th
e m
odu
lati
on o
f th
e C
lutc
h P
ress
ure
Con
trol
Sol
enoi
d va
lve
"A
"
acti
ng
on t
he
Loc
k-u
p ti
min
g an
d co
ntr
ol v
alve
. E
xam
ple:
Wh
en C
lutc
h P
ress
ure
Con
trol
S
olen
oid
valv
e "
A"
pre
ssu
re i
s lo
w, a
nd
the
Loc
k-u
p C
ontr
ol S
olen
oid
is O
N,
the
Tor
que
Con
vert
er C
lutc
h i
s ap
plie
d pa
rtia
lly.
Wh
en C
lutc
h P
ress
ure
Con
trol
Sol
enoi
d va
lve
"A
"
Su
mm
ary:
Th
e L
ock-
up
Con
trol
Sol
enoi
d is
tu
rned
ON
wh
ich
dra
ins
the
oil
on t
he
spri
ng
side
of
the
Loc
k-u
p sh
ift
valv
e. T
he
com
pute
r co
ntr
ols
the
swit
chin
g of
Par
tial
, Hal
f, a
nd
Fu
ll C
onve
rter
C
lutc
h a
ppli
cati
on t
hru
th
e m
odu
lati
on o
f th
e C
lutc
h P
ress
ure
Con
trol
Sol
enoi
d va
lve
"B
"
acti
ng
on t
he
Loc
k-u
p ti
min
g an
d co
ntr
ol v
alve
. E
xam
ple:
Wh
en C
lutc
h P
ress
ure
Con
trol
S
olen
oid
valv
e "
B"
pre
ssu
re i
s lo
w, a
nd
the
Loc
k-u
p C
ontr
ol S
olen
oid
is O
N,
the
Tor
que
Con
vert
er C
lutc
h i
s ap
plie
d pa
rtia
lly.
Wh
en C
lutc
h P
ress
ure
Con
trol
Sol
enoi
d va
lve
"B
"
TO
RQ
UE
CO
NV
ER
TE
R C
LU
TC
H E
NG
AG
EM
EN
T
D4
- 3r
d G
EA
R-T
CC
AP
PL
IED
Sele
ctor
pos
ition
Gea
rP
ress
ure
Mod
eSC
S "A
"SC
S "B
"SC
S "C
"C
PC
S "A
"C
PC
S "B
"L
UC
S
D4
2nd
ON
OF
Fm
odul
atin
gO
FF
ON
ON
LIN
E
TO
RQ
UE
CO
NV
ER
TE
RC
LU
TC
H "
OF
F"
TO
RQ
UE
CO
NV
ER
TE
RC
LU
TC
H "
PAR
TIA
L A
PP
LIC
AT
ION
"T
OR
QU
E C
ON
VE
RT
ER
CL
UT
CH
"H
AL
F A
PP
LIC
AT
ION
"T
OR
QU
E C
ON
VE
RT
ER
CL
UT
CH
"F
UL
L A
PP
LIC
AT
ION
"
TC
CC
LU
TC
HT
CC
CL
UT
CH
TC
CC
LU
TC
HT
CC
CL
UT
CH
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
13
SOLENOID CHECK AND OPERATION
LOCK-UP CONTROL AND SHIFT CONTROL SOLENOID "A" OFF
LOCK-UP CONTROL AND SHIFT CONTROL SOLENOID "A" ON
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
Copyright © 2002 ATSG
141
141
141141
LOCK-UP CONTROLSOLENOID
LOCK-UP CONTROLSOLENOID
MODULATING VALVEPRESSURE TO LOCK-UP
SHIFT VALVE(spring side)
MODULATING VALVEPRESSURE TO LOCK-UP
SHIFT VALVE(spring side)
MODULATING VALVEPRESSURE TO SHIFT
VALVE "A"
MODULATING VALVEPRESSURE TO SHIFT
VALVE "A"
SHIFT CONTROLSOLENOID "A"
SHIFT CONTROLSOLENOID "A"
solenoidgasket
solenoidgasket
X BLOCKED
X BLOCKED
X
X
When the Lock-up control Solenoid is OFF, Modulating Pressure is HIGH, which prevents the Lock-up Shift Valve from stroking.
When Shift Control Solenoid "A" is OFF, Modulating Pressure is HIGH, which strokes Shift Valve "A."
When the Lock-up control Solenoid is ON, Modulating Pressure is EXHAUSTED, which allows the Lock-up Shift Valve to stroke.
When Shift Control Solenoid "A" is ON, Modulating Pressure is EXHAUSTED, which allows Shift Valve "A" to be held to the right by its spring.
CONNECTED
CONNECTED
14
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
Copyright © 2002 ATSG
SOLENOID CHECK AND OPERATION
SHIFT CONTROL SOLENOID "B" AND "C" OFF
SHIFT CONTROL SOLENOID "B" AND "C" ON
X
X
X
X
FROM MODULATORVALVE
FROM MODULATORVALVE
FROM MODULATORVALVE
FROM MODULATORVALVE
TO SHIFT VALVE "B"AND SERVO
CONTROL VALVE
FROM SHIFT VALVE "B"AND SERVO
CONTROL VALVE
TO SHIFT VALVE "C"AND REVERSE
CPC VALVE
FROM SHIFT VALVE "C"AND REVERSE
CPC VALVE
SCS "B"ON
(black connector)
SCS "B"OFF
(black connector)
SCS "C"ON
(brown connector)
SCS "C"OFF
(brown connector)
Summary: When Shift Control Solenoid "B" and "C" are OFF, oil from the Modulating valve isapplied to stroke the valves that the solenoids control.
CONNECTED
CONNECTED
CONNECTED
CONNECTED
Summary: When Shift Control Solenoid "B" and "C" are ON, oil from the Modulating valve is blocked at the end of the solenoid. The valves, that the solenoids control, are
connected to the exhaust at the top of the solenoid.
15
From Modulating Valve( Solenoid regulator)
From Modulating Valve( Solenoid regulator)
Pressure port
Pressure port
To CPC valve "A"Reverse CPC valve
Shift valve "C"
To CPC valve "A"Reverse CPC valve
Shift valve "C"
To CPC valve "B"Shift valve "C"Shift valve "D"
To CPC valve "B"Shift valve "C"Shift valve "D"
CLUTCH PRESSURE CONTROL SOLENOID AND VALVE OPERATION "OFF"
CLUTCH PRESSURE CONTROL SOLENOID AND VALVE OPERATION "ON"
CLUTCH PRESSURE CONTROL SOLENOID AND VALVE "B"
CLUTCH PRESSURE CONTROL SOLENOID AND VALVE "A"
CLUTCH PRESSURE CONTROL SOLENOID AND VALVE "A"
CLUTCH PRESSURE CONTROL SOLENOID AND VALVE "B"
CLUTCH PRESSURECONTROL
SOLENOIDS "OFF"
CLUTCH PRESSURECONTROL
SOLENOIDS "ON"
X
X
X
X
Clutch Pressure Control Solenoid and Valve "A" supply modulating pressure to CPC valve "A", Reverse CPC valve and Shift valve "C" when "OFF."
Clutch Pressure Control Solenoid and Valve "B" shut off the supply of modulating pressure to CPC valve
Clutch Pressure Control Solenoid and Valve "A" shut off the supply of modulating pressure to CPC valve "A", Reverse CPC valve and Shift valve "C" when "ON."
Clutch Pressure Control Solenoid and Valve "B" supply modulating pressure to CPC valve "B", Shift valve "C" and Shift Valve "D" when "ON."
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
Copyright © 2002 ATSG
16
CLUTCH PRESSURECONTROL SOLENOID
VALVE "A" OFF
CLUTCH PRESSURECONTROL SOLENOID
VALVE "A" ON
CLUTCH PRESSURECONTROL SOLENOID
VALVE "B" OFF
CLUTCH PRESSURECONTROL SOLENOID
VALVE "B" ON
APPLY AIRPRESSURE HERE
APPLY AIRPRESSURE HERE
AIR WILL EXHAUSTTHRU THIS HOLE
AIR WILL EXHAUSTTHRU THIS HOLE
AIR IS BLOCKEDTO THIS HOLE
AIR IS BLOCKEDTO THIS HOLE
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
Copyright © 2002 ATSG
CLUTCH PRESSURE CONTROL SOLENOID VALVES "A" AND "B" OFF
SOLENOID CHECK AND OPERATION
SOLENOID CHECK AND OPERATION
CLUTCH PRESSURE CONTROL SOLENOID VALVES "A" AND "B" ON
17
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
Copyright © 2002 ATSG
PRESSURE SWITCH CHECK AND OPERATION2nd OR 3rd GEAR PRESSURE SWITCH "OFF"
2nd OR 3rd GEAR PRESSURE SWITCH "ON"
0.L
.001
OFF
OFF
RPM
RPM
RPM
RPM
COM
COM
mA
mA
A
A
V
V
V
V
mV
mV
WW
WW
WW
WW
V
V
mAA
mAA
mAA
mAA
WW
WW
NO PRESSUREAPPLIED
40-100 psi.OF PRESSURE
APPLIED
CLOSED ATAPPROXIMATLY
40 psi.
SUMMARY: THE 2nd AND 3rd GEAR PRESSURE SWITCHES ARE "OPEN" WITH NO PRESSURE APPLIED
SUMMARY: THE 2nd AND 3rd GEAR PRESSURE SWITCHES "CLOSE" WHEN 40-100 psi. OF PRESSUREIS APPLIED TO THE SWITCH.
18
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
CLUTCH PRESSURE CONTROLThe PCM/TCM regulates the A/T Clutch Pressure Control Solenoids "A" and "B" thereby controlling all clutch apply pressure via the clutch pressure control (CPC) valves as well as lock-up apply pressure.
SOLENOID CONTROL
SEQUENTIAL SPORTSHIFT MODE (PRELUDE ONLY)When in the D4 position, while sliding the shift lever to the Sequential Sportshift Mode position, the driver can use the shift lever to upshift and downshift similar to the operation of a manual transmission. Pushing the shift lever towards the "+" indicator results in an upshift to the next higher gear.Pushing the shift lever towards the "-" indicator results in a downshift to the next lower gear.The number of the selected gear is displayed in the shift indicator next to the D4 indicator as seen below. The transmission does not automatically shift, it remains in the selected gear position.
The transmission will upshift or downshift automatically under the following conditions:1. Downshift from 4th to 3rd when more power is required such as when climbing a hill.2. Provide engine braking when on a steep incline.3. Downshift to 1st gear when the vehicle comes to a stop.4. Under proper conditions, the PCM/TCM will allow a downshift to avoid engine overreving.5. A coast downshift will occur to a lower gear when vehicle speed drops low enough to require the downshift signal at which time the shift indicator will flash several times to indicate a lower gear position.
SPORTSHIFT MODESHIFT INDICATOR
2
19
GRADE LOGIC CONTROL SYSTEM
The PCM/TCM compares actual driving conditions with memorized driving conditions, by the use of a Fuzzy Logic System and input from various sensors to control shifting while the vehicle is ascending or descending a hill, or during speed reduction.
ASCENDING CONTROLWhen the computer determines that the vehicle is climbing a hill in the D4 or D3 positions, the Grade Logic System extends the engagement area of 2nd and 3rd gear to prevent the transmission from frequently shifting between 2nd and 3rd gears, and between 3rd and 4th gears in order to shift busyness and to also have adequate power.Shift schedules stored in the computer between 2nd and 3rd gears, and between 3rd and 4th gears, enable the computer's Fuzzy Logic to automatically select the most suitable gear according to how steep the hill is as shown in the graph below.
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
20
DESCENDING CONTROLWhen the computer determines that the vehicle is going down a hill in D4 or D3 positions, the closed throttle upshift speed from 3rd to 4th gear and from 2nd to 3rd becomes faster than the set speed for flat road driving to widen the 3rd and 2nd gear driving area. This in conjunction with engine braking from deceleration lock-up, achieves smooth driving when the vehicle is descending. There a two descending modes with different 3rd and 2nd gear driving areas depending on the gradient encountered as seen in the graph below.
GRADE LOGIC CONTROL SYSTEM
DECELERATION CONTROLWhen the vehicle turns a corner and needs to decelerate first and then accelerate, the computer sets the data for deceleration control to reduce the number of times the transmission shifts. When the vehicle is decelerating from speeds above 27 mph (43 km/h), the computer shifts the transmission from 4th to 2nd gear earlier than normal to cope with upcoming acceleration.
IMPORTANT NOTE:
NEVER ROAD TEST A VEHICLE EQUIPPED WITH GRADE LOGIC CONTROL ON A LIFT!
THE VEHICLE WILL SHIFT HUNT AND/OR SKIP A GEAR, THE GRADE CONTROL SYSTEM BECOMES CONFUSED WITH THE WHEELS OFF THE GROUND AND WILL COMMAND THE SHIFT SOLENOIDS IN SUCH A MANNER THAT IT WILL APPEAR TO BE A TRANSMISSION MALFUNCTION!
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
21
CODE RETRIEVAL PROCEDURE (ACCORD)
RETRIEVE CODESWhen the PCM/TCM senses an abnormality, the "D4" Lamp will begin to flash steadily as seen below.
In some instances the "MIL" Lamp will also be illuminated, check for those related codes first. Connect an OBD-II scan tool conforming to SAE J1978, to the Data Link Connector (DLC), as shown below, and check for codes in the generic category, and the transmission control system as well as any other system codes that may be pertinent. Also check for recorded freeze frame information and refer to the code chart shown beginning on page15.
D4 LAMP FLASHESWHEN A FAULT IS
PRESENT
DATA LINKCONNECTOR
(DLC)
OBD-IISCAN TOOL
MILLAMP
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
22
CLEAR CODESReset the PCM/TCM memory with the scan tool or remove the 7.5 AMP BACK-UP FUSE from the passenger side under dash fuse box as shown below.
IMPORTANT NOTE:Remember to obtain the radio anti-theft codes so they may reinstalled in the event they are lost during the code clearing process.
PASSENGER SIDEUNDER DASH
FUSE BOX
7.5 AMPBACK-UP FUSE
REMOVE THIS FUSETO CLEAR CODES
CODE CLEARING PROCEDURE (ACCORD)
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
23
CODE RETRIEVAL PROCEDURE (PRELUDE)
RETRIEVE CODESWhen the PCM/TCM senses an abnormality, the "D4" Lamp will begin to flash steadily as seen below.The Prelude offers two methods of code retrieval:1. Connect an OBD-II compliant scan tool to the 16 pin Data Link Connector (DLC) shown, below left.2. Locate the 2 pin Service Check Connector, shown below right, and jump the SCS connector with the tool shown or a suitable substitute and read the "flash" codes shown in () found in the code chart beginning on page 15.
16 PINDATA LINK CONNECTOR
FOR SCAN TOOL USE
2 PIN SERVICECHECK CONNECTOR
D4 LAMPFLASHES STEADILY
JUMP SERVICECONNECTOR FOR
FLASH CODES
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
24
DTC 2
DTC 15
2 SHORT FLASHES
1 LONG FLASH
5 SHORT FLASHES
CODE RETRIEVAL PROCEDURE (PRELUDE)
The "flash" code format is shown directly below. Single digit codes are indicated by individual short flashes.Two digit codes are indicated by long flashes followed by short flashes.
CODE CLEARING PROCEDURE (PRELUDE)
CLEAR CODESReset the PCM/TCM memory with the scan tool or remove the 7.5 AMP BACK-UP FUSE from the under hood fuse box for at least 10 seconds as shown below.
IMPORTANT NOTE:Remember to obtain the radio anti-theft codes so they may reinstalled in the event they are lost during the code clearing process.
UNDER HOODFUSE BOX
REMOVE 7.5 AMPBACK-UP FUSE
TO CLEAR CODES
7.57.5
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
25
*DTC D4 LAMP MIL LAMP SYMPTOM POSSIBLE CAUSE
P0715(15) ON
·Erratic Shifting ·Faulty Mainshaft Speed Sensor or Circuit
P0720(9) FLASHES ON
·Erratic Shifting·No 4th Gear·No Lock-up·No Speedometer (Accord Only)
·Faulty Countershaft Speed Sensor or Circuit
P0725(11) OFF OFF
·No Lock-up (Prelude Only) ·Loss of Engine RPM Signal·Faulty Distributor/Ignition Coil·Wire or Connection·Faulty Ignition Coil
P0730(41)
OFF ON
·Failure to shift through the gears·Skipped Shifts
·Mechanically Bad Shift Solenoids·Mechanically Bad A/T Pressure·Control Solenoids·Low Clutch Pressure·Internal Component Slipping
P0740(40)
OFF ON
·Lock-up Clutch Does Not Apply·Lock-up Clutch Does Not Disengage
·Mechanically Bad Lock-up·Control Solenoid·Mechanically Bad A/T Pressure·Control Solenoids·Lock-up Shift, Control or Timing Valve Problems·Faulty Torque Converter·Faulty Speed Sensor
P0753(7) ONFLASHES
FLASHES
·Does Not Shift, Stuck in 4th Gear·Fails to Shift to 4th Gear·Erratic Shifting
·Electrically Bad Shift Solenoid 'A'·Shift Solenoid "A" Circuit Fault
P0758(8)
FLASHES ON
·Electrically Bad Shift Solenoid 'B'·Shift Solenoid "B" Circuit Fault
·3rd Gear Starts·Fails to Shift to 1st or 2nd Gear·Erratic Shifting
P0763(22)
FLASHES ON
·Electrically Bad Shift Solenoid 'C'·Shift Solenoid "C" Circuit Fault·Faulty 2nd Clutch Pressure Switch·Faulty 3rd Clutch Pressure Switch (Accord Only)
·Late Shift From N to D or N to R·Excessive Shock or Flare on 1-2, 2-3 or 3-4 Shift·Excessive Shock or Flare on 2-1, 3-2 or 4-3 Shift
P0780(45)
FLASHES ON
·Incorrect Gear Ratio·Mechanical Problem in Hydraulic System
·Mechanical Fault with Shift Solenoid A, B or C·Mechanical Fault with A/T Pressure Control Solenoid A or B·Internal Hydraulic Leak
*DTC's in parentheses is the code the D4 Lamp will flash when the 2 pin Service Connector is jumped (Prelude Only), or a Scan Tool capable of displaying flash codes is connected to the 16 pin DLC
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
26
DIAGNOSTIC TROUBLE CODE DEFINITION CHART
*DTC D4 LAMP MIL LAMP SYMPTOM POSSIBLE CAUSE
P01655(37)**
ON
·Lock-up Does Not Apply ·Short or Open in SEAF Wire Between TCM Terminal B18 and ECM·Short or Open in SEFA Wire Between TCM Terminal B19 and ECM·Faulty ECM
P01705(5)
ON
P01706(6)
OFF ON
P01709(24) FLASHES OFF
P01738(25) OFFOFF
FLASHES
·Slide, Bump On The 1-2 Shift·Flare On The 1-2 Shift
·2nd Clutch Pressure Switch Circuit Failure·Faulty 2nd Clutch Pressure Switch
P01739(26)
P01750(46)
FLASHES ON
·Incorrect Gear Ratio·Transmission Slipping
·Mechanical Fault with A/T Pressure Control Solenoid A or B·Internal Hydraulic Leak
FLASHES
·A/T Gear Position Switch Circuit Fault·Faulty A/T Gear Position Switch
·Erratic Shifts·Shift Quadrant Indicator Lamps Do Not Indicate Correct Gear Shift Position·Shift Lever Does Not Operate Properly
·A/T Gear Position Switch Circuit Fault·Faulty A/T Gear Position Switch
·Erratic Shifts·Shift Quadrant Indicator Lamps Do Not Indicate Correct Gear Shift Position·Shift Lever Does Not Operate Properly
·Transmission Does Not Shift Into Sequential Sportshift Mode (Prelude Only)
·Mode Switch Circuit Faults·Faulty Mode Switch
OFFOFF
·Slide, Bump On The 2-3 Shift·Flare On The 2-3 Shift
·3rd Clutch Pressure Switch Circuit Failure·Faulty 3rd Clutch Pressure Switch
P01751(47)
FLASHES ON
·Incorrect Gear Ratio·Transmission Slipping
·Mechanical Fault with A/T Pressure Control Solenoid A or B·Mechanical Fault with Shift Solenoid 'B'·Internal Hydraulic Leak
*DTC's in parentheses is the code the D4 Lamp will flash when the 2 pin Service Connector is jumped (Prelude Only), or a Scan Tool capable of displaying flash codes is connected to the 16 pin DLC**The D4 Indicator Lamp cannot flash code (37) even when the Service Check Connector is jumped.
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
27
DIAGNOSTIC TROUBLE CODE DEFINITION CHART
*DTC's in parentheses is the code the D4 Lamp will flash when the 2 pin Service Connector is jumped (Prelude Only), or a Scan Tool capable of displaying flash codes is connected to the 16 pin DLC
*DTC D4 LAMP MIL LAMP SYMPTOM POSSIBLE CAUSE
P01753(1)
ON
·Lock-up Does Not Apply ·Short or Open in Lock-up Solenoid Circuit·Faulty Lock-up Solenoid
P01768(16)
ON
P01773(23)
P01790(3)
FLASHES ON
FLASHES
FLASHES
·A/T Clutch Pressure Control Solenoid 'A' Circuit Fault·Faulty A/T Clutch Pressure Control Solenoid 'A'
·Excessive Shock or Flares on Shifts·Lock-up Clutch Does Not Operate Smoothly·Lock-up Clutch does Not Apply
·Lock-up Clutch Does Not Apply (Prelude Only)
·Vehicle Speed Sensor Circuit Fault·Faulty Vehicle Speed Sensor
FLASHES ON
·Excessive Shock or Flares on Shifts·Lock-up Clutch Does Not Operate Smoothly·Lock-up Clutch does Not Apply
·A/T Clutch Pressure Control Solenoid 'A' Circuit Fault·Faulty A/T Clutch Pressure Control Solenoid 'A'
FLASHES ON
·Lock-up Clutch Does Not Apply ·Throttle Position Sensor Circuit Fault·Faulty Throttle position Sensor
P01791(4)
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
28
DIAGNOSTIC TROUBLE CODE DEFINITION CHART
TCM CIRCUIT DIAGRAM AND TERMINAL LOCATIONS (ACCORD)
2 3 4
12131415 1617
252627
5 6
1819
282930
20
8
21
9 10
23
32
24
1 2
9
19
10
20
11
3
12
21
4
13
22
5
14
23
16
2425
17 18
7 8 1 2 3
1314
25
15
5
16
26
6
17
27
7
18
28
19
8
20
29
9
21
30
10 1
6
13 14
7
2 3
8
15
9 10
16
11 12
5
PCM CONNECTOR TERMINAL LOCATIONS
32 PIN 25 PIN 31 PIN 16 PIN
CRUISE CONTROLUNIT
MULTIPLEXCONTROL UNIT(DRIVERS)
D4
D4 INDICATORLAMP
P
R
N
D4
D3
2
1
TRANSMISSIONRANGESWITCH
P R N D3 2 1
A/T GEAR POSITIONINDICATOR
INSTRUMENT CLUSTER
SOLENOID POWERSUPPLY
BRAKE LAMPS
BRAKE SWITCH
B+
DATA LINKCONNECTOR
ENGINE COOLANTTEMPERATURESENSOR
THROTTLEPOSITIONSENSOR
IGNITIONSWITCH
BATTERY
PGM-FIMAINRELAY
PGM-FICONTROLUNIT
TRANSMISSIONCONTROLMODULE
A/T CLUTCHPRESSURECONTROLSOLENOID 'A'
A/T CLUTCHPRESSURECONTROLSOLENOID 'B'
SHIFTSOLENOID 'A'
SHIFTSOLENOID 'B'
SHIFTSOLENOID 'C'
LOCK-UPSOLENOID
MAINSHAFTSPEED SENSOR
COUNTERSHAFTSPEED SENSOR
2ND CLUTCHPRESSURE SWITCH
3RD CLUTCHPRESSURE SWITCH
A5
B24
B14
A28
D16
D10
D12
D11
D1
D3
D2
D7
B18
B25
B8
B17B8
B10
B1
B9
B21
C28
C27C18
C26
A10
A32
B20
B22
D5
A9
D6
D9
D8
D14
D15
D13
A14
#13 7.5 AMP FUSE(PASSENGER UNDER DASH FUSE BOX)
#46 15 AMP FUSE(UNDER HOOD FUSE BOX)
#1 15AMPFUSE(DRIVER UNDER DASH FUSE BOX)
#42 50AMP FUSE(UNDER HOOD FUSE BOX)
#41 100AMP FUSE(UNDER HOOD FUSE BOX)
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
29
TCM CIRCUIT DIAGRAM AND TERMINAL LOCATIONS (PRELUDE)
15 16 17 19 20 21 22 23 25 26 12 13 14 15 16 17 18 19 20 21 22
3 4 5 6 7 8 9 10 11 12 13 1 4 5 7 8 9 10 112
14
T-MODE SWITCH
SHIFT SWITCH
MODE SWITCH
D4
D4 INDICATOR LAMP
D4
D3
P
R
N
2
1
A/T GEAR POSITIONINDICATOR
SHIFT INDICATOR
EN
GIN
E C
ON
TR
OL
MO
DU
LE
(E
CM
)
VEHICLE SPEEDSENSOR
THROTTLEPOSITIONSENSOR
DATA LINKCONNECTOR (DLC)
IGNITIONSWITCH
BATTERY
2ND CLUTCHPRESSURE SWITCH
BRAKE LAMPS
BRAKE SWITCH
IGNITIONCOIL
MULTIPLEXCONTROLUNIT
COUNTERSHAFTSPEED SENSOR
MAINSHAFTSPEED SENSOR
LOCK-UPSOLENOID
SHIFTSOLENOID 'C'
SHIFTSOLENOID 'B'
SHIFTSOLENOID 'A'
A/T PRESSURE CONTROLSOLENOID 'B'
A/T PRESSURE CONTROLSOLENOID 'A'
TRANSMISSIONCONTROLMODULE(TCM)
P R N 2 1D3
A12
A25
A23
B20
B4
B7
B18
B19
B5
A13
A26
A14
A21
A20
A19
A10
A11
A4
A9
A8
A7
A6
A17
B13
B16
B15
B14
B12
A5
A22
B8
B9
B17
B10
A15
A16
A2
A3
B22
B11
B21
B1
BACK-UP B+
5 VOLT REFERENCE
TPS 5 VOLT SUPPLY
TPS SIGNAL
TPS GROUND
SEAF TRANSMISSION DATA OUTPUT
SEFA PGM-FI DATA INPUT
VSS INPUT
GROUND
GROUND
GROUND
#32 100 AMPFUSE(UNDER HOOD FUSE BOX)
#14 15 AMPFUSE(UNDER DASH FUSE BOX)
#43 7.5 AMP FUSE(UNDER HOOD FUSE BOX)
#33 50 AMPFUSE(UNDER HOOD FUSE BOX)
26 PIN 22 PIN
TCM CONNECTOR TERMINAL LOCATIONS
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
30
TROUBLESHOOTING GUIDE
PROBABLE CAUSE LIST
ELECTRONIC DEVICE FAMILY TORQUE CONVERTER FAMILY
TRANSMISSION FAMILY
HYDRAULIC CONTROL FAMILY
13 3rd clutch pressure switch defective (ACCORD ONLY)
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
31
TROUBLESHOOTING GUIDE
SYMPTOM CHECK THESE ITEMS ON THEPROBABLE CAUSE LIST
CHECK THESE ITEMSON THE NOTES LIST
5, 13, G, J, P, Q, g, h
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
32
TROUBLESHOOTING GUIDE
PROBABLE CAUSE LIST
ELECTRONIC DEVICE FAMILY TORQUE CONVERTER FAMILY
TRANSMISSION FAMILY
HYDRAULIC CONTROL FAMILY
13 3rd clutch pressure switch defective (ACCORD ONLY)
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
33
TROUBLESHOOTING GUIDE
Flush transmission cooler
NOTES
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
34
A/T GEAR POSITION SWITCH
1
10
2 3
4 5 6 78 9
GEARPOSITION
TERMINAL 1 2 3 4 5 6 7 8 9 10
P
R
N
D4
D3
2
1
CONNECTOR VIEWOF A/T GEAR
POSITION SWITCH
BATTERY
A/T GEAR POSITION SWITCH CONTINUITY CHECK CHART
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
35
OIL PRESSURE CHART
ACCORD BAXA/PRELUDE M6HA
SELECTORLEVER
POSITIONGEAR
PRESSUREPORT
PRESSUREIN
PSI
N or P N or P LINE (A)
1
D3 or D4
D4
FIRST 1ST CLUTCH (B)
SECOND 2ND CLUTCH (C)
THIRD 3RD CLUTCH (D)
FOURTH 4TH CLUTCH (E)
4TH CLUTCH (E)R REVERSE
120-130
CONDITIONS
ENGINE @ 2000 RPM
ENGINE @ 2000 RPM, WHEELS FREE
ENGINE @ 2000 RPM, WHEELS FREE
ENGINE @ 2000 RPM, WHEELS FREE
ENGINE @ 2000 RPM, WHEELS FREE
ENGINE @ 2000 RPM, WHEELS FREE
2
120-130
120-130
120-130
120-130
120-130
2ND CLUTCH PRESSURE(MARKED WITH A "C")
LINE PRESSURE(MARKED WITH AN "A")
TCC/SHIFT SOLENOID "A"ASSEMBLY
A/T GEARPOSITION SWITCH
4TH CLUTCH PRESSURE(MARKED WITH AN "E")
1ST CLUTCH PRESSURE(MARKED WITH A "B")
3RD CLUTCH PRESSURE(MARKED WITH A "D")
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
36
FLUID LEVEL & CAPACITY
NOTE: Use of a fluid other than the recommended fluidmay cause shift quality concerns.If this is so, a friction modifier added to this fluid may benecessary.
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
37
TRANSMISSION REMOVAL
(PRELUDE ONLY)
NOTE: Accords will have a3rd Clutch Pressure Switch to disconnect as well.
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
39
TRANSMISSION DISASSEMBLY
END COVER & IDLER GEARS
ACCORD BAXA
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
43
TRANSMISSION DISASSEMBLY
END COVER & IDLER GEARS
PRELUDE M6HA
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
44
TRANSMISSION DISASSEMBLY
END COVER & IDLER GEARS
PRELUDE M6HA LEGEND
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
45
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
TRANSMISSION DISASSEMBLY
TRANSMISSION HOUSING
ACCORD BAXA
46
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
TRANSMISSION DISASSEMBLY
TRANSMISSION HOUSING
PRELUDE M6HA
FEED PIPESCONTAIN FILTER SCREENS
47
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
TRANSMISSION DISASSEMBLY
TRANSMISSION HOUSING
PRELUDE M6HA LEGEND
48
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
TRANSMISSION DISASSEMBLY
TRANSMISSION HOUSING REMOVAL
49
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
TRANSMISSION DISASSEMBLY
VALVE BODY
ACCORD BAXA
50
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
TRANSMISSION DISASSEMBLY
VALVE BODY
PRELUDE M6HA
51
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
TRANSMISSION DISASSEMBLY
VALVE BODY
PRELUDE M6HA LEGEND
52
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
VALVE BODY DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
53
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
VALVE BODY DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
PUMP CLEARANCE
54
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
VALVE BODY DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
MAIN VALVE BODY
55
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
VALVE BODY DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
MAIN VALVE BODY
No.
1 Lock-up Control Valve Spring
Servo Control Valve Spring
Reverse CPC Valve Spring
Spring
Modulator Valve Spring
Shift Valve C Spring
Shift Valve D Spring
Shift Valve E Spring
Lock-up Shift Valve Spring2
3
4
5
6
7
8
Standard (New) mm (in.)
Wire Diameter O.D. Free Length No. of Coils
0.7 (0.028) 42.9 (1.689) 14.2
0.9 (0.035)
6.6 (0.260)
63.0 (2.480) 22.4
0.7 (0.028)
7.6 (0.299)
32.2 (1.268) 13.4
0.7 (0.028)
6.6 (0.260)
35.7 (1.406) 17.2
0.8 (0.031)
1.6 (0.063)
0.7 (0.028)
0.7 (0.028)
6.6 (0.260)
6.6 (0.260)
10.4 (0.409)
6.1 (0.240)
49.1 (1.933)
17.8 (0.701)
35.7 (1.406)
21.7
9.8
7.9
17.2
9
10
Converter Check Valve Spring
Cooler Check Valve Spring
1.1 (0.043)
0.6 (0.024)
6.6 (0.260)
8.4 (0.331)
5.8 (0.228)
33.5 (1.319)
38.2 (1.504)
14.5 (0.571) 6.8
14.0
56
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
No.
1 Regulator Valve B Spring
Spring
Lock-up Timing Valve Spring
Relief Valve Spring
Stator Reaction Spring
Regulator Valve A Spring2
3
4
5
Standard (New) mm (in.)
Wire Diameter O.D. Free Length No. of Coils
1.6 (0.063) 9.2 (0.362) 44.0 (1.732) 14.0
1.9 (0.075) 14.7 (0.579) 77.4 (3.047) 15.2
4.5 (0.177) 35.4 (1.394) 30.3 (1.193) 1.92
1.9 (0.035) 6.6 (0.260) 39.8 (1.567) 20.4
0.65 (0.026) 6.6 (0.260) 34.8 (1.370) 15.6
VALVE BODY DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
REGULATOR VALVE BODY
MAKE CERTAIN THISORIFICE IS CLEAR
57
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
VALVE BODY DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
SERVO VALVE BODY
No.
1 Shift Valve B Spring
4th Accumulator Spring (PRELUDE)
4th Accumulator Spring (ACCORD)
Spring
3rd Accumulator Spring (PRELUDE)
3rd Accumulator Spring (ACCORD)
CPC Valve B Spring
CPC Valve A Spring
Shift Valve A Spring2
3
4
5
6
7
8
Standard (New) mm (in.)
Wire Diameter O.D. Free Length No. of Coils
0.8 (0.031) 7.1 (0.280) 40.4 (1.591) 16.9
0.8 (0.031) 7.1 (0.280) 40.4 (1.591) 16.9
0.7 (0.028) 6.1 (0.240) 17.8 (0.701) 7.9
0.7 (0.028) 6.1 (0.240) 17.8 (0.701) 7.9
3.8 (0.150)
3.5 (0.138)
3.8 (0.150)
3.5 (0.138)
19.6 (0.772)
19.6 (0.772)
19.6 (0.772)
19.6 (0.772)
59.8 (2.354)
61.7 (2.429)
59.8 (2.354)
61.7 (2.429)
61.7 (2.429)
7.8
9.6
7.8
9.6
58
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
VALVE BODY DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA
ACCUMULATOR VALVE BODY
No.
1
2nd Accumulator Spring A
2nd Accumulator Spring B
Spring
1st Accumulator Spring A
1st Accumulator Spring B
2
3
4
Standard (New) mm (in.)
Wire Diameter O.D. Free Length No. of Coils
2.5 (0.098)
2.6 (0.102)
2.7 (0.106)
2.6 (0.102)
12.8 (0.504)
19.6 (0.772)
14.8 (0.583)
21.6 (0.850)
49.5 (1.949)
69.7 (2.744)
51.0 (2.008)
73.2 (2.882)
8.5
10.8
9.6
10.0
59
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
VALVE BODY DISASSEMBLY, INSPECTION & REASSEMBLY
PRELUDE M6HA
ACCUMULATOR VALVE BODY
No.
1
2nd Accumulator Spring A
2nd Accumulator Spring B
Spring
1st Accumulator Spring
2
3
Standard (New) mm (in.)
Wire Diameter O.D. Free Length No. of Coils
3.5 (0.138)
2.6 (0.102)
2.8 (0.110)
19.6 (0.772)
14.4 (0.567)
21.6 (0.850)
61.7 (2.429)
51.0 (2.008)
68.2 (2.685)
9.6
11.0
8.9
60
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
MAINSHAFT
2000-01
ACCORD
ONLY
LUBRICATION
PITOT
FLANGE
IDLER
GEAR
TRANSMISSION
HOUSING
BEARING
61
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
MAINSHAFT CLEARANCE
62
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
COUNTERSHAFT
63
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
SECONDARY SHAFT
64
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
SECONDARY SHAFT CLEARANCE
65
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
SECONDARY SHAFT CLEARANCE
No. Part No. (Accord) ThicknessPart No. (Prelude)
4.90mm (0.193 in)90406-P6H-00090406-POZ-0001
2 90407-POZ-000 90407-P6H-000 4.95mm (0.195 in)
3 90408-POZ-000 90408-P6H-000 5.00mm (0.197 in)
4 90409-POZ-000 90409-P6H-000 5.05mm (0.199 in)
5 90410-POZ-000 90410-P6H-000 5.10mm (0.201 in)
6 90411-POZ-000 90411-P6H-000 5.15mm (0.203 in)
7 90412-POZ-000 90412-P6H-000 5.20mm (0.205 in)
NOTE: The chart above contains the part numbers for the 37x55mm thrust shim for both the ACCORD and the PRELUDE. Be sure to order the correct thrust shim for the application you are working on.
66
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
1ST/2ND CLUTCH ASSEMBLIES
1.6mm (0.063 in.) PRELUDE w/6 Frictions
2.3mm (0.091 in.)ACCORD w/5 Frictions
The 1st clutch pistondoes NOT use a reed valve
The 2nd clutch pistondoes NOT use a reed valve
67
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
3RD/4TH CLUTCH ASSEMBLIES
The 3rd clutch pistonDOES use a reed valve
The 4th clutch pistonDOES use a reed valve
68
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
CLUTCH DRUM ASSEMBLIES
69
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
CLUTCH DRUM ASSEMBLIES
70
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
CLUTCH DRUM ASSEMBLIES
71
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
CLUTCH DRUM ASSEMBLIES
5. Reverse disassembly procedure for assembly.
72
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
CLUTCH DRUM ASSEMBLIES
CLUTCH SERVICE LIMIT1st
2nd (Prelude)2nd (Accord)
1.15 - 1.35 mm (0.045 - 0.053 in.)
3rd4th
1.0 - 1.2 mm (0.039 - 0.047 in.)
0.7 - 0.9 mm (0.028 - 0.035 in.)0.6 - 0.8 mm (0.024 - 0.031 in.)0.4 - 0.6 mm (0.016 - 0.024 in.)
73
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
CLUTCH DRUM ASSEMBLIES
74
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
DIFFERENTIAL
COMPONENTS BACKLASH INSPECTION
75
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
DIFFERENTIAL
BEARING REPLACEMENT DIFFERENTIAL CARRIER REPLACEMENT
76
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
DIFFERENTIAL
TAPERED ROLLER BEARING PRELOAD ADJUSTMENT
77
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
DIFFERENTIAL
78
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
DIFFERENTIAL
TAPERED ROLLER BEARING OUTER RACE
79
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
AXLE SEALS
80
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
TRANSMISSION CASE & HOUSING BEARINGS
81
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
TRANSMISSION CASE & HOUSING BEARINGS
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
82
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
83
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
TRANSMISSION CASE & HOUSING BEARINGS
NOTE:After bearings are installed, make certain there is noup and down movement of the bearings in the case,if there is movement, the case will require replacement.
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
84
DISASSEMBLY, INSPECTION & REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
PARK MECHANISM
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
85
TRANSMISSION REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
86
ACCORD BAXA & PRELUDE M6HA
TRANSMISSION REASSEMBLY
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
87
ACCORD BAXA & PRELUDE M6HA
TRANSMISSION REASSEMBLY
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
88
ACCORD BAXA & PRELUDE M6HA
TRANSMISSION REASSEMBLY
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
89
ACCORD BAXA & PRELUDE M6HA
TRANSMISSION REASSEMBLY
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
90
TRANSMISSION REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
91
TRANSMISSION REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
NOTE: For 2000 and later models, install the pitot flange on the mainshaft idler gear, then install the lubrication pitot pipe and the pitot pipe on the transmission housing.
LUBRICATION PITOTPIPE
PITOT PIPE
PITOT FLANGE
6 x 1.0 mm12 N-m(1.2 kgf-m)(8.7 lb. ft.)
92
TRANSMISSION REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
93
TRANSMISSION REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
94
TRANSMISSION REASSEMBLY
ACCORD BAXA & PRELUDE M6HA
CONVERTER & DRIVE PLATE
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
95
TRANSMISSION INSTALLATION
ACCORD BAXA & PRELUDE M6HA
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
TRANSMISSION INSTALLATION
ACCORD BAXA & PRELUDE M6HA
96
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
TRANSMISSION INSTALLATION
ACCORD BAXA & PRELUDE M6HA
97
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
TRANSMISSION INSTALLATION
ACCORD BAXA & PRELUDE M6HA
98
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
TRANSMISSION INSTALLATION
ACCORD BAXA & PRELUDE M6HA
99
MAINSHAFTSPEEDSENSOR
A/T CLUTCHPRESSURECONTROLSOLENOIDSA & B
HARNESSCLAMPS
3RD CLUTCHPRESSURESWITCH
HARNESSCLAMPS
GROUNDCABLE
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
100
TRANSMISSION INSTALLATION
ACCORD BAXA & PRELUDE M6HA
COOLER LINE CONNECTIONS
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
SPECIAL TOOLS
ACCORD BAXA/PRELUDE M6HA
109
TOOL NUMBERREFERENCE NUMBER DESCRIPTION QUANTITY
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
110
HONDA ACCORD1998 & LATER WITH BAXA/MAXA TRANSMISSION
DELAY IN REVERSE AND 1-2 BIND-UPHARSH DRIVE ENGAGEMENT
COMPLAINT:
CAUSE:
CORRECTION:
The transmission has been overhauled, and after the transmission is installed back into the vehicle, the transmission delays in reverse and binds up on the 1-2 shift. A harsh engagement into drive will also occur.
During the installation of the transmission the connectors for shift solenoids "B" and "C" were switched with the connectors for A/T Clutch Pressure Control solenoids "A" and "B".These connectors are identical in configuration (Refer to Figures 2 & 3) which permits the cross connection of these solenoid connectors causing the above complaints.
When reconnecting these solenoid connectors, use the chart in figure 1 to insure the correct solenoid connections have been made.
NOTE: There are other Honda/Acura transaxles that are very similar to the BAXA/MAXA, causing the same possibility of cross connecting Shift Solenoid "A" and "B" connectors with A/T Clutch Pressure Control Solenoid connectors, these are listed below:
M6HA......................................................................................1997-01 Honda PreludeMDWA.................................................................1997-98 Honda Odyssey/Isuzu OasisB6VA............................................................................................1998-99 Acura 2.3CL
SOLENOID CONNECTOR WIRE COLORS
A/T CLUTCH PRESSURE CONTROL SOLENOID "A" WHITE AND RED
A/T CLUTCH PRESSURE CONTROL SOLENOID "B" GREEN AND ORANGE
SHIFT SOLENOID "B" GREEN/WHITE AND BLACK
SHIFT SOLENOID "C" GREEN AND BLACK
Figure 1
HONDA ACCORD L4 WITH BAXA/MAXA - SOLENOID CONNECTOR WIRE COLORS
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
111
HONDA ACCORD1998 & LATER WITH BAXA/MAXA TRANSMISSION
DELAY IN REVERSE AND 1-2 BIND-UPHARSH DRIVE ENGAGEMENT
1 2
1 2
11 22
11 22
SHIFTSOLENOID
"B"
SHIFTSOLENOID
"C"
SHIFTSOLENOID "B" CONNECTOR
SHIFTSOLENOID "C" CONNECTOR
A/T CLUTCH PRESSURECONTROL SOLENOID
"A"
A/T CLUTCH PRESSURECONTROL SOLENOID
"B"
A/T CLUTCH PRESSURECONTROL SOLENOID
"B" CONNECTOR
A/T CLUTCH PRESSURECONTROL SOLENOID
"A"CONNECTOR
SHIFT SOLENOIDS "B" & "C" CONNECTORS HAVE SAME CONFIGURATION AS A/T CLUTCH PRESSURECONTROL SOLENOIDS "A" & "B"
A/T CLUTCH PRESSURE CONTROL SOLENOIDS "A" & "B" CONNECTORS HAVE SAME CONFIGURATIONAS SHIFT SOLENOIDS "B" & "C"
Figure 2
Figure 3