BRAKES BRC A - navlife.com.au · Maneuverability is also improved for avoiding obstacles. ......

BRAKES

C

D

E

SECTION BRCA

B

BRAKE CONTROL SYSTEM

G

H

I

J

K

L

M

RC

N

O

P

CONTENTS

BABS

SERVICE INFORMATION ............................ 2

DTC INDEX .......................................................... 2C1101 - C1115 ..........................................................2C1120 - C1191 ..........................................................2U1000 ........................................................................2

PRECAUTIONS ................................................... 3Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-SIONER" ...................................................................3Precaution for Brake System ....................................3Precaution for Brake Control .....................................3

SYSTEM DESCRIPTION ..................................... 5Schematic .................................................................5Functions ...................................................................5Operation That Is Not "System Error" .......................5Fail-Safe Function .....................................................5

Hydraulic Circuit Diagram ......................................... 6

TROUBLE DIAGNOSIS ..................................... 7Component Parts Location ....................................... 7Schematic ................................................................. 8Wiring Diagram - ABS - ............................................ 9Control Unit Input/Output Signal Standard ..............13CONSULT-III Function ............................................14Self-Diagnosis .........................................................15Data Monitor ............................................................16Active Test ...............................................................17Symptom Chart ........................................................18Component Inspection .............................................18

WHEEL SENSOR ..............................................20Removal and Installation .........................................20

ACTUATOR AND ELECTRIC UNIT (ASSEM-BLY) ..................................................................21

Removal and Installation .........................................21

BRC-1Revision: 2009 March D40

[ABS]DTC INDEX

< SERVICE INFORMATION >

SERVICE INFORMATIONDTC INDEX

C1101 - C1115 INFOID:0000000003251891

C1120 - C1191 INFOID:0000000003251892

U1000 INFOID:0000000003251893

DTC Item (CONSULT-III screen item) Reference

C1101 RR RH SENSOR-1

BRC-15, "Self-Diagnosis"

C1102 RR LH SENSOR-1

C1103 FR RH SENSOR-1

C1104 FR LH SENSOR-1

C1105 RR RH SENSOR-2

C1106 RR LH SENSOR-2

C1107 FR RH SENSOR-2

C1108 FR LH SENSOR-2

C1109 BATTERY VOLTAGE [ABNORMAL]

C1110 CONTROLLER FAILURE

C1111 PUMP MOTOR

C1113 G-SENSOR

C1115 ABS SENSOR [ABNORMAL SIGNAL]


C1120 FR LH IN ABS SOL

BRC-15, "Self-Diagnosis"

C1121 FR LH OUT ABS SOL

C1122 FR RH IN ABS SOL

C1123 FR RH OUT ABS SOL

C1140 ACTUATOR RLY

C1190 REAR IN ABS SOL

C1191 REAR OUT ABS SOL


U1000 CAN COMM CIRCUIT BRC-15, "Self-Diagnosis"


PRECAUTIONS[ABS]

C

D

E

G

H

I

J

K

L

M

A

B

RC

N

O

P


B

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" INFOID:0000000005183562

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used alongwith a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certaintypes of collision. Information necessary to service the system safely is included in the “SUPPLEMENTALRESTRAINT SYSTEM” and “SEAT BELTS” of this Service Manual.WARNING:• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which would result in air bag inflation, all maintenance must be performed byan authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personalinjury caused by unintentional activation of the system. For removal of Spiral Cable and Air BagModule, see the “SUPPLEMENTAL RESTRAINT SYSTEM”.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in thisService Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-ness connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERSWARNING:• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possiblycausing serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect thebattery, and wait at least 3 minutes before performing any service.

Precaution for Brake System INFOID:0000000003219563

WARNING:Clean brake pads and shoes with a waste cloth, then wipe with a dust collector.• Only use DOT 3 brake fluid. Refer to MA-14, "Fluids and Lubricants".• Never to reuse drained brake fluid.• Never to spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it off

immediately and wash with water if it gets on a painted surface.• Never to use mineral oils such as gasoline or light oil. They may damage rubber parts and cause improper

operation.• Always loosen the brake tube flare nut with a flare nut wrench.• Tighten the brake tube flare nut to the specified torque with a flare

nut torque wrench (A).• Always conform the specified tightening torque when installing the

brake pipes.• Brake system is an important safety part. If a brake fluid leak is

detected, always disassemble the affected part. If a malfunction isdetected, replace part with a new one.

• Turn the ignition switch OFF and disconnect the ABS actuator andelectric unit (control unit) connector or the battery negative terminalbefore performing the work.

Precaution for Brake Control INFOID:0000000002978771

• Just after starting vehicle after ignition switch ON, brake pedal may vibrate or motor operating noise may beheard from engine room. This is a normal status of operation check.

• Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel, orsnow-covered (fresh, deep snow) roads.

• When an error is indicated by ABS or another warning lamp, collect all necessary information from customer(what symptoms are present under what conditions) and check for simple causes before starting diagnostic

JPFIA0061ZZ


[ABS]PRECAUTIONS

< SERVICE INFORMATION >servicing. Besides electrical system inspection, check brake booster operation, brake fluid level, and fluidleaks.

• If tire size and type are used in an improper combination, or brake pads are not Genuine NISSAN parts,stopping distance or steering stability may deteriorate.

• If there is a radio, antenna, or antenna lead-in wire (including wiring) near control module, ABS function mayhave a malfunction or error.

• If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harnesspinches, open circuits, and improper wiring.


SYSTEM DESCRIPTION[ABS]

C

D

E

G

H

I

J

K

L

M

A

B

RC

N

O

P


B

SYSTEM DESCRIPTION

Schematic INFOID:0000000002978773

Functions INFOID:0000000002978774

ABS • The Anti-Lock Braking System is a function that detects wheel revolution while braking, and it improves han-

dling stability during sudden braking by electrically preventing 4 wheels lock. Maneuverability is alsoimproved for avoiding obstacles.

• Electrical system diagnosis by CONSULT-III is available.

EBD• Electronic Brake Distribution is a function that detects subtle slippages between the front and rear tire during

braking, and it improves handling stability by electrically controlling the brake fluid pressure which results inreduced rear tire slippage.

• Electrical system diagnosis by CONSULT-III is available.

Operation That Is Not "System Error" INFOID:0000000002978775

ABS• When starting engine or just after starting vehicle, brake pedal may vibrate or the motor operating noise may

be heard from engine room. This is a normal states of the operation check.• During ABS operation, brake pedal lightly vibrates and a mechanical noise may be heard. This is normal.• Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel, or

snow-covered (fresh, deep snow) roads.

Fail-Safe Function INFOID:0000000002978776

ABS, EBD SYSTEMIn case of electrical malfunction with ABS, ABS warning lamp will turn on. In case of electrical incidents withEBD, brake warning lamp and ABS warning lamp will turn on. Simultaneously, ABS become one of followingconditions of Fail-Safe function.1. For ABS malfunction, only EBD is activated and condition of vehicle is same condition of vehicles without

ABS system.NOTE:ABS self-diagnosis sound may be heard.That is a normal condition because a self-diagnosis for “Ignitionswitch ON” and “The first starting” are being performed.

2. For EBD malfunction, EBD and ABS become inoperative, and condition of vehicle is same as condition ofvehicles without ABS, EBD system.

JSFIA0136GB


[ABS]SYSTEM DESCRIPTION


Hydraulic Circuit Diagram INFOID:0000000002978777

SFIA3205E


TROUBLE DIAGNOSIS[ABS]

C

D

E

G

H

I

J

K

L

M

A

B

RC

N

O

P


B

TROUBLE DIAGNOSIS

Component Parts Location INFOID:0000000002978778

SFIA3401E


[ABS]TROUBLE DIAGNOSIS


Schematic INFOID:0000000002978779

TFWB0178E



C

D

E

G

H

I

J

K

L

M

A

B

RC

N

O

P


B

Wiring Diagram - ABS - INFOID:0000000002978780

TFWB0179E




TFWB0180E



C

D

E

G

H

I

J

K

L

M

A

B

RC

N

O

P


B

TFWB0181E




JPFWC0005GB



C

D

E

G

H

I

J

K

L

M

A

B

RC

N

O

P


B

Control Unit Input/Output Signal Standard INFOID:0000000003111204

REFERENCE VALUE FROM CONSULT-IIICAUTION:The display shows ABS actuator and electric unit (control unit) calculation data, so a normal valuemight be displayed even in the event the output circuit (harness) is open or short-circuited.

TFWB0216E




Note: Confirm tire pressure is normal.

CONSULT-III Function INFOID:0000000002978781

CONSULT-III MAIN FUNCTION CONSULT-III can display each self-diagnostic item using the diagnostic test modes shown following.

Monitor item Display content

Data monitor

ConditionReference value in nor-

mal operation

FR LH SENSORFR RH SENSORRR LH SENSORRR RH SENSOR

Wheel speed

Vehicle stopped 0 [km/h (MPH)]

Vehicle running (Note)

Nearly matches the speedometer display

(± 10 %or less)

STOP LAMP SW Brake pedal operationBrake pedal depressed On

Brake pedal not depressed Off

BATTERY VOLTBattery voltage supplied to the ABS actuator and electric unit (control unit)

Ignition switch ON 10 – 16 V

FR RH IN SOLFR RH OUT SOLFR LH IN SOLFR LH OUT SOLREAR IN SOLREAR OUT SOL

Operation status of all solenoid valve

Actuator (solenoid valve) is ac-tive (“Active Test ”with CON-SULT-III) or actuator relay is inactive (in fail-safe mode).

On

When the actuator (solenoid valve) is not active and actuator relay is active (ignition switch ON).

Off

MOTOR RELAY Motor and motor relay operation status

When the motor relay and motor are operating

On

When the motor relay and motor are not operating

Off

ACTUATOR RLY Actuator relay operation status

When the actuator relay is oper-ating

On

When the actuator relay is not operating

Off

ABS WARN LAMP ABS warning lamp status When ABS warning lamp is ON On

When ABS warning lamp is OFF Off

EBD WARN LAMP Brake warning lamp statusBrake warning lamp ON On

Brake warning lamp OFF Off

EBD SIGNAL EBD operationEBD active On

EBD not active Off

ABS SIGNAL ABS operationABS active On

ABS not active Off

EBD FAIL SIGABS FAIL SIG

System error signal statusMalfunctions condition(When system is malfunctioning)

Off

CRANKING SIG CRANKING statusCranking On

Not cranking Off

Diagnostic test mode Function

SELF-DIAG RESULTS Self-diagnostic results can be read and erased quickly.

DATA MONITOR Input/Output data in the ABS actuator and electric unit (control unit) can be read.

CAN DIAG SUPPORT MNTR The results of transmit/receive diagnosis of communication can be read.



C

D

E

G

H

I

J

K

L

M

A

B

RC

N

O

P


B

Self-Diagnosis INFOID:0000000002978782

Display Item List

ACTIVE TESTDiagnostic Test Mode in which CONSULT-III drives some actuators apart from the ABS actuator and electric unit (control unit) and also shifts some parameters in a specified range.

FUNCTION TEST Performed by CONSULT-III instead of a technician to determine whether each system is “OK” or “NG”.

ECU PART NUMBER ABS actuator and electric unit (control unit) part number can be read.

Diagnostic test mode Function

Self-diagnostic item Malfunction detecting condition Check system

RR RH SENSOR-1[C1101] (Note 1)

Circuit of rear RH wheel sensor is open, shorted or sensor power volt-age is unusual.

• Check tire• Check sensor and sen-

sor rotor• Check ABS actuator

and electric unit (con-trol unit)

• Check wheel sensor circuit

RR LH SENSOR-1[C1102] (Note 1)

Circuit of rear LH wheel sensor is open, shorted or sensor power voltage is unusual.

FR RH SENSOR-1[C1103] (Note 1)

Circuit of front RH wheel sensor is open, shorted or sensor power volt-age is unusual.

FR LH SENSOR-1[C1104] (Note 1)

Circuit of front LH wheel sensor is open, shorted or sensor power volt-age is unusual.

RR RH SENSOR-2[C1105] (Note 1)

When the distance between the wheel sensor and sensor rotor is too large and the sensor pulse cannot be recognized by the control unit.

RR LH SENSOR-2[C1106] (Note 1)


FR RH SENSOR-2[C1107] (Note 1)


FR LH SENSOR-2[C1108] (Note 1)


BATTERY VOLTAGE[ABNORMAL][C1109]

ABS actuator and electric unit (control unit) power voltage is too low. • Check battery voltage

CONTROLLER FAILURE[C1110]

Internal malfunction of ABS actuator and electric unit (control unit)• Replace ABS actuator


PUMP MOTOR [C1111]

During actuator motor operation with ON, when actuator motor turns OFF or when control line for actuator motor relay is open. • Check ABS actuator

and electric unit (con-trol unit)During actuator motor operation with OFF, when actuator motor turns

ON or when control line for relay is shorted to ground.

G-SENSOR[C1113]

Internal malfunction of ABS actuator and electric unit (control unit)• Replace ABS actuator


ABS SENSOR[ABNORMAL SIGNAL][C1115] (Note 1)

Wheel sensor input is malfunction.

• Check tire• Check sensor and sen-

sor rotor• Check ABS actuator


• Check wheel sensor circuit




Note 1: After completing repairs of shorted sensor circuit, when ignition switch is turned ON, ABS warning lamp turns on. Make sure thatABS warning lamp turns off while driving vehicle at 10 km/h (6 MPH) or more for approximately 1 minute according to self-diagnosis pro-cedure. In addition, if wheel sensor 2 is displayed for wheels, check wheel sensor circuit and also check control unit power voltage.

Note 2: When errors are detected in several systems, including CAN communication system [U1000], troubleshoot CAN communicationcircuit.

Data Monitor INFOID:0000000003111205

DISPLAY ITEM LIST×: Applicable : Optional item

FR LH IN ABS SOL[C1120]

When the control unit detects an error in the front LH inlet solenoid cir-cuit.

• Check ABS actuator and electric unit (con-trol unit)

FR LH OUT ABS SOL[C1121]

When the control unit detects an error in the front LH outlet solenoid cir-cuit.

FR RH IN ABS SOL[C1122]

When the control unit detects an error in the front RH inlet solenoid cir-cuit.

FR RH OUT ABS SOL[C1123]

When the control unit detects an error in the front RH outlet solenoid cir-cuit.

ACTUATOR RLY[C1140]

When the control unit detects an error in the actuator relay circuit.

REAR IN ABS SOL[C1190]

When the control unit detects an error in the rear inlet solenoid circuit.

REAR OUT ABS SOL[C1191]

When the control unit detects an error in the rear outlet solenoid circuit.

CAN COMM CIRCUIT[U1000] (Note 2)

When ABS actuator and electric unit (control unit) is not transmitting or receiving CAN communication signal for 2 seconds or more.

• Check ABS actuator and electric unit (con-trol unit)

• Check CAN communi-cation line

Self-diagnostic item Malfunction detecting condition Check system

Monitor item (Unit)SELECT MONITOR ITEM

RemarksECU INPUT SIGNALS MAIN SIGNALS

FR LH SENSOR[km/h (MPH)]

× ×

Wheel speed

FR RH SENSOR[km/h (MPH)]

× ×

RR LH SENSOR[km/h (MPH)]

× ×

RR RH SENSOR[km/h (MPH)]

× ×

STOP LAMP SW(On/Off)

× × Stop lamp switch signal status

BATTERY VOLT(V)

× × Battery voltage supplied to the ABS actuator and electric unit (control unit)



C

D

E

G

H

I

J

K

L

M

A

B

RC

N

O

P


B

Active Test INFOID:0000000002978784

TEST ITEM

Solenoid valveNOTE:The example shown is for front right wheel. The procedure for the other wheels is the same as given below.• For ABS solenoid valve, touch “UP”, “KEEP”, and “DOWN” on the display screen. Make sure solenoid valve

operates as shown in solenoid valve operation chart.

Solenoid Valve Operation Chart

*: ON for 1 to 2 seconds after the touch, and then OFF

ABS Motor

FR RH IN SOL(On/Off)

×

Operation status of each solenoid valve

FR RH OUT SOL(On/Off)

×

FR LH IN SOL(On/Off)

×

FR LH OUT SOL(On/Off)

×

RR RH IN SOL(On/Off)

×

RR RH OUT SOL(On/Off)

×

RR LH IN SOL(On/Off)

×

RR LH OUT SOL(On/Off)

×

MOTOR RELAY(On/Off)

× Motor and motor relay operation

ACTUATOR RLY(On/Off)

× Actuator relay operation

ABS WARN LAMP(On/Off)

× ABS warning lamp status

EBD WARN LAMP(On/Off)

Brake warning lamp status

EBD SIGNAL(On/Off)

EBD operation

ABS SIGNAL(On/Off)

ABS operation

EBD FAIL SIG(On/Off)

EBD fail-safe signal

ABS FAIL SIG(On/Off)

ABS fail-safe signal

CRANKING SIG(On/Off)

Cranking signal

Monitor item (Unit)SELECT MONITOR ITEM

RemarksECU INPUT SIGNALS MAIN SIGNALS

OperationABS solenoid valve

UP KEEP DOWN

FR RH IN SOL OFF ON ON

FR RH OUT SOL OFF OFF ON*



< SERVICE INFORMATION >Touch “ON” and “OFF” on the screen. Make sure ABS motor relay and actuator relay operates as shown intable below.

Symptom Chart INFOID:0000000002978785

If ABS warning lamp turn ON, perform self-diagnosis.

Note 1: ABS does not operate when speed is 10 km/h (6 MPH) or lower.

Note 2: Under the following conditions, ABS is activated and vibration is felt when brake pedal is lightly depressed (just place a foot onit). However, this is normal.

• When shifting gears

• When driving on slippery road

• During cornering at high speed

• When passing over dumps or grooves [at approximately 50 mm (1.97 in) or more]

• When pulling away just after starting engine [at approximately 10 km/h (6 MPH) or more]

Component Inspection INFOID:0000000002978786

WHEEL SENSORWheel sensor can not be inspected with circuit tester.

BRAKE FLUID LEVEL SWITCH1. Turn ignition switch OFF.2. Disconnect brake fluid level switch connector.3. Check continuity between brake fluid level switch connector ter-

minal 1 and 2.

4. If NG, replace brake fluid level switch.

STOP LAMP SWITCH1. Turn ignition switch OFF.

Operation ON OFF

MOTOR RELAY ON OFF

ACTUATOR RLY ON ON

Symptom Check item

Excessive ABS function operation frequency

Brake force distribution

Looseness of front and rear axle

Wheel sensor and sensor rotor system

Unexpected pedal reaction

Brake pedal stroke

Make sure the braking force is sufficient when the ABS is not op-erating.

The braking distance is long Check stopping distance when the ABS in not operating.

ABS function does not operate (Note 1) Wheel sensor

Pedal vibration or ABS operation sound occurs (Note 2) Wheel sensor

ABS warning lamp indication is not normal

CAN communication line

ABS actuator and electric unit (control unit)

Combination meter

Brake fluid level switch Condition Continuity

1 – 2

When brake fluid is full in the reservoir tank

No

When brake fluid is empty in the reser-voir tank

YesSFIA2966E



C

D

E

G

H

I

J

K

L

M

A

B

RC

N

O

P


B

2. Disconnect stop lamp switch connector.3. Check continuity between stop lamp switch connector terminal 1 and 2.

4. If NG, replace stop lamp switch.

PARKING BRAKE SWITCH1. Turn ignition switch OFF.2. Disconnect parking brake switch harness connector.3. Operate parking brake and check continuity between parking brake switch harness connector terminal 1

and ground.

4. If NG, replace parking brake switch.

Stop lamp switch Condition Continuity

1 – 2

Release stop lamp switch.(When brake pedal is depressed.)

No

Push stop lamp switch.(When brake pedal is released.)

Yes

Parking brake switch Condition Continuity

1 – groundWhen parking brake operated. No

When parking brake released. Yes


[ABS]WHEEL SENSOR


WHEEL SENSOR

Removal and Installation INFOID:0000000002978787

CAUTION:Wheel sensor can not be separate from axle parts.

1. Front wheel sensor (LH) 2. Rear wheel sensor (RH)

A. Front B. Rear : Front

Refer to GI-7, "Component" for symbol marks in the figure.

JSFIA0264GB


ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)[ABS]

C

D

E

G

H

I

J

K

L

M

A

B

RC

N

O

P


B

ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)

Removal and Installation INFOID:0000000002978788

CAUTION:• Before servicing, disconnect battery cables.• To remove brake tube, use flare nut wrench to prevent flare nuts and brake tube from being dam-

aged. To install, use flare nut torque wrench.• Do not apply excessive impact to ABS actuator and electric unit (control unit), such as dropping it.• Do not remove and install actuator by holding harness.• After work is completed, bleed air from brake tube and hose. Refer to BR-8, "Bleeding Brake Sys-

tem".

1. To rear 2. From master cylinder secondary side

3. To front left

4. From master cylinder primary side 5. To front right 6. ABS actuator and electric unit (con-trol unit)

7. Harness connector

Refer to GI-7, "Component" for symbol marks in the figure.

SFIA3403E


BRAKES BRC A - navlife.com.au · Maneuverability is also improved for avoiding obstacles. ......

Documents

Transcript of BRAKES BRC A - navlife.com.au · Maneuverability is also improved for avoiding obstacles. ......