Student Workbook
8-Speed Automatic TransmissionDiagnosis and Repair
SAFETY NOTICE
Copyright © 2015 FCA US LLC
This publication’s purpose is to provide technical training information to individuals in the automotive trade. All test and repair procedures must be performed in accordance with manufacturer’s service and diagnostic manuals. All warnings, cautions, and notes must be observed for safety reasons. The following is a list of general guidelines:
• Proper service and repair is critical to the safe, reliable operation of all motor vehicles.• The information in this publication has been developed for service personnel, and can help when diagnosing and performing vehicle repairs.• Some service procedures require the use of special tools. These special tools must be used as recommended throughout this Technical Training Publication, the diagnostic manual, and the service manual.• Special attention should be exercised when working with spring- or tension-loaded fasteners and devices such as E-Clips, Cir-clips, snap rings, etc. Careless removal may cause personal injury.• Always wear safety goggles when working on vehicles or vehicle components.• Improper service methods may damage the vehicle or render it unsafe.• Observe all warnings to avoid the risk of personal injury.• Observe all cautions to avoid damage to equipment and vehicles.• Notes are intended to add clarity and should help make your job easier.
Cautions and warnings cover only the situations and procedures FCA US LLC has encountered
and advise the service trade of all conceivable ways in which service may be performed, or of the
undertaken any such broad service review. Accordingly, anyone who used a service procedure or tool that is not recommended in this publication, must be certain that neither personal safety, nor vehicle safety, is jeopardized by the service methods they select.
No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of FCA US LLC.
FCA US LLC reserves the right to make changes from time to time, without notice or obligation, in prices,
discontinue models. See your dealer for the latest information.
8-Speed Automatic Transmission Diagnosis and Repair i
TABLE OF CONTENTS
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1COURSE OBJECTIVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1ACRONYMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19. . . . . . . .19
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
ii 8-Speed Automatic Transmission Diagnosis and Repair
. . . . . . . . . . . . . . . . . . . . . . . . . . 43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
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8-Speed Automatic Transmission Diagnosis and Repair iii
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. . . . . . . . . . . . . . . . . . . . 117. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
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8-Speed Automatic Transmission Diagnosis and Repair
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8-Speed Automatic Transmission Diagnosis and Repair 1
INTRODUCTION
COURSE OBJECTIVES
•
•
•
•
•
2 8-Speed Automatic Transmission Diagnosis and Repair
ACRONYMS
8-Speed Automatic Transmission Diagnosis and Repair 3
4 8-Speed Automatic Transmission Diagnosis and Repair
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8-Speed Automatic Transmission Diagnosis and Repair 5
LESSON 1
8-Speed Overview
2034-81_0001
6 8-Speed Automatic Transmission Diagnosis and Repair
1
2
L01_002
1 2
8-Speed Automatic Transmission Diagnosis and Repair 7
1
2
3
2034-81_0022
1 32
8 8-Speed Automatic Transmission Diagnosis and Repair
6
7
4
2
3
5
8
9
1
2034-81_0266
1 62 73 84 95
8-Speed Automatic Transmission Diagnosis and Repair 9
L01_001
10 8-Speed Automatic Transmission Diagnosis and Repair
4
1
2
32034-81_0012
1 32 4
8-Speed Automatic Transmission Diagnosis and Repair 11
1
2
2034-81_0224
1 2
12 8-Speed Automatic Transmission Diagnosis and Repair
1
2
3
2034-81_0006
1 32
8-Speed Automatic Transmission Diagnosis and Repair 13
1
2
3
L01_003
1 32
14 8-Speed Automatic Transmission Diagnosis and Repair
1 2
2034-81_0002
1 2
NOTE: Mopar oil leak dye has not been approved for use with the 8- and 9-speed automatic
CAUTION: transmission in the center of the oil pan. The supports for the jack should be placed around the edge of the pan or rail.
8-Speed Automatic Transmission Diagnosis and Repair 15
1
2
2034-81_0003
1 2
16 8-Speed Automatic Transmission Diagnosis and Repair
90016656.ai
2
2034-81_0031
8-Speed Automatic Transmission Diagnosis and Repair 17
L01_017
2
1
1 2
18 8-Speed Automatic Transmission Diagnosis and Repair
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8-Speed Automatic Transmission Diagnosis and Repair 19
DEMONSTRATION 1
1.
20 8-Speed Automatic Transmission Diagnosis and Repair
2.
8-Speed Automatic Transmission Diagnosis and Repair 21
1.
2.
3.
22 8-Speed Automatic Transmission Diagnosis and Repair
1.
2.
3.
4.
5.
6.
7.
8-Speed Automatic Transmission Diagnosis and Repair 23
1.
2.
3.
4.
24 8-Speed Automatic Transmission Diagnosis and Repair
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8-Speed Automatic Transmission Diagnosis and Repair 25
LESSON 2
•
–
•
•
•
Braking Rotating RatioA B C D EX X XX XX X X
X X XX X XX X X
X X XX X XX X XX X XX X
26 8-Speed Automatic Transmission Diagnosis and Repair
•
•
•
•
•
•
•
•
–
•
–
Solenoid
(NC)
A
(NC)
B
(NC)
C
(NO)
D
(NO)
E
(NO)
TCC
(NC) (NO)X X X X
X X X X XX X X X XX X X X XX X X X XX X XX X XX X XXX X XX X X
8-Speed Automatic Transmission Diagnosis and Repair 27
•
•
•
•
Solenoid
Current
Solenoids
Control
TCC
Low (mA)
•
•
•
28 8-Speed Automatic Transmission Diagnosis and Repair
Notes: _________________________________________________________________________________________________________
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8-Speed Automatic Transmission Diagnosis and Repair 29
ACTIVITY 1
1.
2.
3.
30 8-Speed Automatic Transmission Diagnosis and Repair
1.
2.
8-Speed Automatic Transmission Diagnosis and Repair 31
3.
32 8-Speed Automatic Transmission Diagnosis and Repair
4.
5.
8-Speed Automatic Transmission Diagnosis and Repair 33
6.
7.
8.
34 8-Speed Automatic Transmission Diagnosis and Repair
9.
10.
8-Speed Automatic Transmission Diagnosis and Repair 35
11.
12.
13.
36 8-Speed Automatic Transmission Diagnosis and Repair
14.
15.
8-Speed Automatic Transmission Diagnosis and Repair 37
16.
38 8-Speed Automatic Transmission Diagnosis and Repair
•
–
–
–
–
–
–
–
1.
8-Speed Automatic Transmission Diagnosis and Repair 39
2.
40 8-Speed Automatic Transmission Diagnosis and Repair
3.
8-Speed Automatic Transmission Diagnosis and Repair 41
4.
5.
6.
7.
8.
42 8-Speed Automatic Transmission Diagnosis and Repair
Notes: _________________________________________________________________________________________________________
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8-Speed Automatic Transmission Diagnosis and Repair 43
LESSON 3
Torque Converter
1
2
2034-81_0004
1 2
44 8-Speed Automatic Transmission Diagnosis and Repair
1
2
2034-81_0013
1 2
8-Speed Automatic Transmission Diagnosis and Repair 45
1
2
3
2034-81_0007
1 32
46 8-Speed Automatic Transmission Diagnosis and Repair
4
1
2
5
3
2034-81_0009
1 42 53
CAUTION: The TCM can be damaged by electrostatic discharge (ESD). Always take precautions to avoid ESD when handling a valve body assembly. A wrist band grounding device is the most reliable method of diverting electrostatic discharge.
8-Speed Automatic Transmission Diagnosis and Repair 47
15
3
4
2
2034-81_0010
1 42 53
NOTE: The oil pump cover bolts are made of lightweight aluminum alloy. These bolts MUST be replaced each time they are removed.
48 8-Speed Automatic Transmission Diagnosis and Repair
3
12
4
2034-81_0005
1 32 4
8-Speed Automatic Transmission Diagnosis and Repair 49
21 43 5 6 7 8
9
10
11
2034-81_0008
1 72 83 94 105 116
50 8-Speed Automatic Transmission Diagnosis and Repair
3
1
2
2034-81_0025
1 32
NOTE: The snap rings must be replaced whenever they are removed.
CAUTION: The aluminum drums must be handled with care. Do not drop or dent the drums during service. Always inspect the drum carefully for excessive loss of metal around the snap ring retainer groove and for deformation.
8-Speed Automatic Transmission Diagnosis and Repair 51
A B E C D
Holding Rotating{ {2034-81_0011
•
•
•
52 8-Speed Automatic Transmission Diagnosis and Repair
1
2
3
2034-81_0023
1 32
NOTE:
8-Speed Automatic Transmission Diagnosis and Repair 53
12 3
45
6
7
9
1011
121314151718 16
8
2034-81_0201
1 102 113 124 135 146 157 168 179 18
54 8-Speed Automatic Transmission Diagnosis and Repair
Brake Clutch RatioA B C D EX X XX XX X X
X X XX X XX X X
X X XX X XX X XX X XX X
Solenoid
(NC)
A
(NC)
B
(NC)
C
(NO)
D
(NO)
E
(NO)
TCC
(NO) (NO)X X X X
X X X X XX X X X XX X X X XX X X X XX X XX X XX X XXX X XX X X
8-Speed Automatic Transmission Diagnosis and Repair 55
1 2
45
3
2034-81_0215
1 42 53
•
•
56 8-Speed Automatic Transmission Diagnosis and Repair
1 2 43 5
89
6
7
2034-81_0216
1 62 73 84 95
8-Speed Automatic Transmission Diagnosis and Repair 57
2034-81_0202
Held
Rotating
Locked Rotating
Input
Output
4.714
DCEA B
P1 P2 P3 P40.000
4.714
58 8-Speed Automatic Transmission Diagnosis and Repair
2034-81_0203
Held
Rotating
Locked Rotating
Input
Output
4.714
DCEA B
P1 P2 P3 P40.6670.000
3.143
8-Speed Automatic Transmission Diagnosis and Repair 59
2034-81_0204
Held
Rotating
Locked Rotating
Input
Output
2.106
DCEA B
P1 P2 P3 P41.0003.000
2.106
60 8-Speed Automatic Transmission Diagnosis and Repair
2034-81_0205
Held
Rotating
Locked Rotating
Input
Output
1.000
DCEA B
P1 P2 P3 P41.0000.5563.000
1.667
8-Speed Automatic Transmission Diagnosis and Repair 61
2034-81_0206
Held
Rotating
Locked Rotating
Input
Output
1.285
DCEA B
P1 P2 P3 P41.2850.4643.000
1.285
62 8-Speed Automatic Transmission Diagnosis and Repair
2034-81_0207
Held
Rotating
Locked Rotating
Input
Output
1.000
DCEA B
P1 P2 P3 P41.0001.0001.000
1.000
8-Speed Automatic Transmission Diagnosis and Repair 63
2034-81_0208
Held
Rotating
Locked Rotating
Input
OutputDCEA B
P1 P2 P3 P40.8390.670
0.839
64 8-Speed Automatic Transmission Diagnosis and Repair
2034-81_0209
Held
Rotating
Locked Rotating
Input
OutputDCEA B
P1 P2 P3 P41.0000.670
0.670
8-Speed Automatic Transmission Diagnosis and Repair 65
2034-81_0210
Held
Rotating
Locked Rotating
Input
Output
4.714
DCEA B
P1 P2 P3 P4-1.0460.6700.000
-3.289
66 8-Speed Automatic Transmission Diagnosis and Repair
8-Speed Automatic Transmission Diagnosis and Repair 67
2034-81_0108
AC
E
HV-
A
CV-A
CV-B1
CV-C
CV-D
HV-
B2
CV-E
HV-
E
RED
-V
SOL
ASO
LLP
S
LP-V
SOL
CSO
L D
SOL
E
Cool
erLP
R-V
Pum
p Park
-V
Park
Cyl
SOL
Park
Pos-
V
PosD
-V
B1D
SOL
B
CV-B2
HV-
CH
V-D
TCC
SOL
TCC
TCC-
VSV
-TC
TC-V
Lubr
icat
ion
PR-V
TCH
2-V
Filte
r
RET-
V
TCH
1-V
Valve
Des
igna
tions
LP-V
Li
ne P
ress
ure
Valv
ePa
rk-V
Pa
rk P
awl R
elea
se V
alve
Pa
rk-C
yl P
ark
Paw
l Rel
ease
Cyl
inde
rR
ED-V
Pr
essu
re R
educ
ing
Valv
ePo
s-V
Posit
ion
Valve
PosD
-V D
efau
lt Po
sitio
n Va
lve
(Driv
ing
Def
ault
Mod
e)C
V-x
Clu
tch
Appl
y Va
lve
HV-
x H
oldi
ng V
alve
TC-V
To
rque
Con
verte
r Pre
ssur
e Va
lveTC
C-V
To
rque
Con
verte
r Clu
tch
Valv
eTC
Hx-
V To
rque
Con
verte
r Hol
ding
Val
vePR
-V
Prim
ing
Valv
eSO
L x
Sole
noid
LPR
-V
Lubr
icat
ion
Pres
sure
Rel
ief V
alve
SV-T
C
Switc
hing
Val
ve -
Torq
ue C
onve
rter
RET
-V
Line
Pre
ssur
e R
eten
tion
Valv
eR
B-V
Roc
ker B
all V
alve
HV-B1
RB-V
Conv
erte
r
Filte
r
68 8-Speed Automatic Transmission Diagnosis and Repair
From Line Pressure Solenoid
To Main Line
To TCC, Prime, and Lube
1
3
2
4
5
2034-81_0214
1 42 53
8-Speed Automatic Transmission Diagnosis and Repair 69
Filter
Lubrication
CoolerTC-V
TCH2-VTCH1-V
SV-TC
Converter
Reduced Solenoid Pressure
Regulated Line Pressure
TCC
TCC-V
SOLTCC
From LPS
Main Line Pressure
2034-81_0212
70 8-Speed Automatic Transmission Diagnosis and Repair
Filter
Lubrication
CoolerTC-V
TCH2-VTCH1-V
SV-TC
Converter
Reduced Solenoid Pressure
Regulated Line Pressure
TCC
TCC-V
SOLTCC
From LPS
Main Line Pressure
2034-81_0213
8-Speed Automatic Transmission Diagnosis and Repair 71
2034-81_0219
CTo Default Position Valve
HV-C
Regulated Line Pressure
VFS Control
CV-C
VB-V
SOL C
72 8-Speed Automatic Transmission Diagnosis and Repair
2034-81_0220
HV-B2
B2
B1
8-Speed Automatic Transmission Diagnosis and Repair 73
Stage 1 Stage 2 Stage 3
Clutch Pressure
CV-B1
B1
CV-B2
HV-B1
SOL B
B2
2034-81_0221
74 8-Speed Automatic Transmission Diagnosis and Repair
2034-81_0223
PS Cyl
Park HoldSolenoid
RET-V
Park-V
SOLPark
RED-V
From C Clutch
8-Speed Automatic Transmission Diagnosis and Repair 75
2034-81_0222
Park Position Reverse/Neutral Position Forward Position
PosD-V
Pos-V
System Pressure
From Park Solenoid
To C/D/E Clutch Valves
From Clutch C or Evia Shuttle Valve
76 8-Speed Automatic Transmission Diagnosis and Repair
C E
CV-C CV-D CV-E
HV-E
RED-VSOLLPS SOL C SOL D SOL E
Park-V
Park Cyl
SOLPark
Pos-V
PosD-V
D
HV-C HV-D
RET-V
RB-V
From Pump
2034-81_0234
8-Speed Automatic Transmission Diagnosis and Repair 77
A C E
HV-A
KV-A CV-B1 CV-C CV-D
HV-B2
CV-E
HV-E
RED-V
SOL ASOLLPS
LP-V
SOL C SOL D SOL E
CoolerLPR-V
Pump
Park-V
Park Cyl
SOLPark
B1 D
SOL B
CV-B2
HV-C HV-D
TCC
SOLTCC
TCC-VSV-TC
TC-V
Lubrication
PR-V
TCH2-V
Filter
RET-V
TCH1-V
HV-B1
RB-V
Converter
Filter
Pos-V
PosD-V
1
2
2034-81_0235
78 8-Speed Automatic Transmission Diagnosis and Repair
Notes: _________________________________________________________________________________________________________
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8-Speed Automatic Transmission Diagnosis and Repair 79
DEMONSTRATION 2
1.
2.
3.
80 8-Speed Automatic Transmission Diagnosis and Repair
4.
1.
8-Speed Automatic Transmission Diagnosis and Repair 81
2.
3.
4.
82 8-Speed Automatic Transmission Diagnosis and Repair
1.
2.
3.
4.
5.
8-Speed Automatic Transmission Diagnosis and Repair 83
6.
7.
84 8-Speed Automatic Transmission Diagnosis and Repair
Notes: _________________________________________________________________________________________________________
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8-Speed Automatic Transmission Diagnosis and Repair 85
2034-81_0017
T C M
Power Actuator Supply
Actuator Supply
SOL - D SOL - B SOL - E SOL - CTCC SolenoidLine Pressure SolenoidPark Release Solenoid
Park Hold Solenoid
Temperature Sensor
“Park”Signal
+
_
Signal
Sensor Ground
OSSISS
Park Lock“Not Park” Position Sensor
SOL - A Ground
CAN-CBUSDedicatedCAN BUS
Ignition
CAN 1 HICAN 1 LOCAN 2 HICAN 2 LO
86 8-Speed Automatic Transmission Diagnosis and Repair
8-Speed Automatic Transmission Diagnosis and Repair 87
3
1 22034-81_0019
1 32
88 8-Speed Automatic Transmission Diagnosis and Repair
1
2
2034-81_0018
1 2
NOTE: The TCM internal temperature sensor can be viewed on the scan tool.
8-Speed Automatic Transmission Diagnosis and Repair 89
1 2
2034-81_0020
1 2
90 8-Speed Automatic Transmission Diagnosis and Repair
87
65
43
21
9
Solenoid A = Normally ClosedSolenoid B = Normally ClosedSolenoid C = Normally OpenSolenoid D = Normally OpenSolenoid E = Normally OpenTCC Solenoid = Normally ClosedLine Pressure = Normally OpenSolenoid
2034-81_0225
1 62 73 84 95
8-Speed Automatic Transmission Diagnosis and Repair 91
Battery
ElectronicShifter Module
TransmissionControlModule
Dedicated
CANBUS
CAN-CBUS
Battery
Ground
Ground
IGN
_
+
_
+
_
+
_
+TRS Park Signal
To Other Modules
1
67
98
10
34
56
15
14139
1015
16
118
4
5
2
79
14
13 12
1
6
3
6 10
1 5
2034-81_0021
ESM Connector
TCM Connector
92 8-Speed Automatic Transmission Diagnosis and Repair
L04_006
BATTERY
ASSEMBLY-POWERDISTRIBUTIONCENTER
CONNECTOR-CAN CDASH
MODULE-BODYCONTROL
IGNITIONOFF/RUN/
STARTCONTROLOUTPUT
IGNITIONOFF/RUN/
STARTCONTROLOUTPUT
DATABUS(+)ESHIFT
DATABUS(+)ESHIFT
CANC(+)
FUSE94
11
A1950.5
BR/RD
A1900.8
YL/RD
10A
FUSE-5715A
A0
19
1 2
C7 C3
INLINE-BODY/IP
INLINE-BODY/ENGINE
17
13
17
SP2284
CANC(-)
C3 C1 C124 2
2
2
15
D300.8YL
D290.8
VT/WT
20
20 29
29
INLINE-DASHRIGHT/ENGINE
INLINE-DASHRIGHT/ENGINE
INLINE-DASHRIGHT/IP
CONNECTOR-STARTCAN CIP
D4410.8
WT/OR
5 6
4
CANC(+)
CANC(-)
CANC(-)
CANC(+)
FUSEDB(+)
FUSEDB(+)
Z9110.5BK
F10.8
PK/WT
T8240.8
YL/DB
26
26
9
MODULE-RADIOFREQUENCYHUB
TRSPARK
SIGNAL
TRSPARK
SIGNALMODULE-TRANSMISSIONCONTROL
MODULE-ELECTRONICSHIFT
DATABUS(-)ESHIFT GROUND
14
Z9081.0BK
GROUND
G212
31
312
81
10
9
1 C6
5
5
6
6
6 7
D4400.8
WT/BR
3
22
22
D4410.5
WT/OR
D4300.35YL
D4400.5
WT/BR
DATABUS(-)ESHIFT
CANC(-)
CANC(+)
D4290.35GY
G206
8-Speed Automatic Transmission Diagnosis and Repair 93
SISP
Selection of Driving Program
Choice Of Gears
ESCProgramSwitch
SelectorLever
ManualSelection
Fast-offDetection
CornerDetection SVD
Warm-up HighTemperature
City DrivingDetection
RollingResistanceDetection
Low FrictionDetection
CruiseControl
Driver TypeAssessment
Drive-off Engine Torque Kick-down Longitudinal
AccelerationLateral
Acceleration
2034-81_0226
94 8-Speed Automatic Transmission Diagnosis and Repair
8-Speed Automatic Transmission Diagnosis and Repair 95
96 8-Speed Automatic Transmission Diagnosis and Repair
Notes: _________________________________________________________________________________________________________
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8-Speed Automatic Transmission Diagnosis and Repair 97
ACTIVITY 2
ANALYZE COMMUNICATION CIRCUITS
1.
2.
3.
4.
5.
6.
98 8-Speed Automatic Transmission Diagnosis and Repair
7.
8.
9.
10.
8-Speed Automatic Transmission Diagnosis and Repair 99
Notes: _________________________________________________________________________________________________________
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________________________________________________________________________________________________________________
________________________________________________________________________________________________________________
100 8-Speed Automatic Transmission Diagnosis and Repair
Notes: _________________________________________________________________________________________________________
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8-Speed Automatic Transmission Diagnosis and Repair 101
LESSON 5
2034-81_0001
102 8-Speed Automatic Transmission Diagnosis and Repair
Notes: _________________________________________________________________________________________________________
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8-Speed Automatic Transmission Diagnosis and Repair 103
ZF 8 Speed Automatic Transmission Diagnostic Worksheet
Dealer Name:
Last 8 Digits of VIN:
Transmission Software Level:
Vehicle Model:
Dealer Code:
Date of Complaint:
Customer Complained Of:Shift Quality
Contact Name:
Phone # & Fax #:
RO #: Mileage:
Repeat Complaint: Yes No
Vehicle Build Date: Vehicle Sale Date:
Engine Software Level:
Transmission Model No. 1090 (e.g. 1090 010 020)
Transmission Serial No:
Function
Noise
Limp Mode
Leak
Other
Defect Details:
NoYesTransmission / Vehicle Fault Codes Registered:
Codes Registered:
Transmission Identification Plate: Is engraved onto the Left Hand side of the transmission casing
ZF - APPROVAL CONFIRMATION:
Approval Number:
Approval Date:
Component to be Dispatched:
Component Dispatch Date:
Print Form
104 8-Speed Automatic Transmission Diagnosis and Repair
•
–
•
–
•
–
•
–
•
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•
–
•
–
•
–
•
–
•
–
•
–
•
–
•
–
•
–
•
–
8-Speed Automatic Transmission Diagnosis and Repair 105
•
–
•
–
•
–
•
–
•
–
•
•
•
–
106 8-Speed Automatic Transmission Diagnosis and Repair
8HP
45
8-Speed Automatic Transmission Diagnosis and Repair 107
P4 Carrier/Output Shaft + Clutch D
Disc Pack 4 / 4
Oil Pum
p + Clutch A
Disc Pack 5 / 5
Clutch E
Disc Pack 6 / 6
Clutch C
Disc Pack 6 / 6
D Clutch Drum
Clutch B
Disc Pack 5 / 5
Transmission Housing
Parking Pawl
Valve B
ody Assem
bly + TCM
A
Torque Converter
P4 Annulus + P4 Annulus Drum
P4 Sun Gear +
C/E Clutch Drum
P3 Carrier
P3 Annulus
P2 AnnulusP3 Sun G
ear
P1 Annulus
P1/P2 Sun Gear
P2 Carrier
P1 Carrier
Extension Housing
Oil P
an/Filter Assem
bly
108 8-Speed Automatic Transmission Diagnosis and Repair
2034-81_0240
pistons
valves
valvesvalve
screen
adaptervalvefilter
pressure springpiston
ballsballs
ball
rocker ball
2034-81_0242
SOL
Park
Hold
Park
Cyl
LP-V
RED-V
SV-TC
TCC-V
CV-B1
HV-B1
8-Speed Automatic Transmission Diagnosis and Repair 109
2034-81_0243
TC-V
Pos-V
PosD-V
HV-B2CV-B2
HV-AHV-D
110 8-Speed Automatic Transmission Diagnosis and Repair
Notes: _________________________________________________________________________________________________________
________________________________________________________________________________________________________________
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8-Speed Automatic Transmission Diagnosis and Repair 111
112 8-Speed Automatic Transmission Diagnosis and Repair
WORLDWIDEThe special service tools referred to herein are required for certain service operations. These special servicetools or their equivalent, if not obtainable through a local source, are available through the following outlet:
Telephone 1-855-298-2687 2801-80th Street Kenosha, WI 53143, U.S.A. FAX 1-855-303-8985
81-699-15023 Rev. 12/15/15
2016
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