NISSAN TEANA 2008 Service Manual

BRC-60
< ON-VEHICLE REPAIR >[ABS]
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Exploded ViewINFOID:0000000003766873
Removal and InstallationINFOID:0000000003766874
REMOVAL
CAUTION:
 Before servicing, disconnect the battery cable from negative terminal.
 To remove brake tube, use a 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. Refer to BR-10, "
Bleeding Brake System".
1. Remove cowl top cover. Refer to EXT-20, "
Exploded View".
2. Disconnect ABS actuator and electric unit (control unit) connector.
3. Loosen brake tube flare nuts, then remove brake tubes from ABS actuator and electric unit (control unit).
4. Remove ABS actuator and electric unit (control unit) bracket mounting nuts.
5. Remove ABS actuator and electric unit (control unit) from vehicle.
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
 Before servicing, disconnect the battery cable from negative terminal.
1. ABS actuator and electric unit (control
unit)2. Bushing 3. Bracket
A. From master cylinder secondary side B. From master cylinder primary side C. To front LH brake caliper
D. To rear RH brake caliper E. To rear LH brake caliper F. To front RH brake caliper
: Vehicle front
Refer to GI section GI-4, "
Components" for symbol marks in the figure.
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ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
BRC-61
< ON-VEHICLE REPAIR >[ABS]
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 To remove brake tube, use a 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. Refer to BR-10, "
Bleeding Brake System".
 After installing harness connector in the ABS actuator and electric unit (control unit), make sure
connector is securely locked.
Install ABS actuator and electric unit (control unit) as per the follow-
ing steps.
1. Temporarily tighten mounting bolt (1) because the bracket (2) is
temporarily being hold.
2. Tighten mounting bolt (3) while holding the bracket.
3. Tighten mounting bolts to the specified torque in the order of (4),
(1).
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BRC-62
< BASIC INSPECTION >[VDC/TCS/ABS]
DIAGNOSIS AND REPAIR WORK FLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORK FLOW
Work FlowINFOID:0000000003766879
PRECAUTIONS FOR DIAGNOSIS
If steering angle sensor, steering system parts, suspension system parts, ABS actuator and electric unit (con-
trol unit) or tires have been replaced, or if wheel alignment has been adjusted, be sure to adjust neutral posi-
tion of steering angle sensor before driving. Refer to BRC-66, "
ADJUSTMENT OF STEERING ANGLE
SENSOR NEUTRAL POSITION : Description".

DIAGNOSIS AND REPAIR WORK FLOW
BRC-63
< BASIC INSPECTION >[VDC/TCS/ABS]
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OVERALL SEQUENCE
DETAILED FLOW
1.COLLECT THE INFORMATION FROM THE CUSTOMER
Get the detailed information from the customer about the symptom (the condition and the environment when
the incident/malfunction occurred) using the diagnosis work sheet. Refer to BRC-65, "
Diagnostic Work Sheet".
>> GO TO 2.
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BRC-64
< BASIC INSPECTION >[VDC/TCS/ABS]
DIAGNOSIS AND REPAIR WORK FLOW
2.PERFORM THE SELF-DIAGNOSIS
Check the DTC display with the self-diagnosis function.
Is there any DTC displayed?
YES >> GO TO 3.
NO >> GO TO 4.
3.PERFORM THE SYSTEM DIAGNOSIS
Perform the diagnosis applicable to the displayed DTC. Refer to BRC-140, "
DTC No. Index".
>> GO TO 7.
4.CHECK THE SYMPTOM THAT IS NOT CONSIDERED A SYSTEM MALFUNCTION
Check that the symptom is a normal operation that is not considered a system malfunction. Refer to BRC-148,
"Description".
Is the symptom a normal operation?
YES >> INSPECTION END
NO >> GO TO 5.
5.CHECK THE WARNING LAMP AND INDICATOR LAMP FOR ILLUMINATION
Check that the warning lamp and indicator lamp illuminate.
 ABS warning lamp: Refer to BRC-128, "
Description".
 Brake warning lamp: Refer to BRC-129, "
Description".
 VDC OFF indicator lamp: Refer to BRC-130, "
Description".
 SLIP indicator lamp: Refer to BRC-131, "
Description".
Is ON/OFF timing normal?
YES >> GO TO 6.
NO >> GO TO 2.
6.PERFORM THE DIAGNOSIS BY SYMPTOM
Perform the diagnosis applicable to the symptom.
>> GO TO 7.
7.REPAIR OR REPLACE THE MALFUNCTIONING PARTS
Repair or replace the specified malfunctioning parts.
>> GO TO 8.
8.MEMORY CLEAR
Perform self-diagnosis memory clear.
>> GO TO 9.
9.FINAL CHECK
Perform the self-diagnosis again, and check that the malfunction is repaired completely.
Is no other DTC present and the repair completed?
YES >> INSPECTION END
NO >> GO TO 3.

DIAGNOSIS AND REPAIR WORK FLOW
BRC-65
< BASIC INSPECTION >[VDC/TCS/ABS]
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Diagnostic Work SheetINFOID:0000000003766880
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BRC-66
< BASIC INSPECTION >[VDC/TCS/ABS]
INSPECTION AND ADJUSTMENT
INSPECTION AND ADJUSTMENT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description
INFOID:0000000003766881
After replacing the ABS actuator and electric unit (control unit), perform the neutral position adjustment for the
steering angle sensor.
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement
INFOID:0000000003766882
1.PERFORM THE NEUTRAL POSITION ADJUSTMENT FOR THE STEERING ANGLE SENSOR
Perform the neutral position adjustment for the steering angle sensor.
>> Refer to BRC-66, "
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION : Spe-
cial Repair Requirement".
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION : Description
INFOID:0000000003766883
When doing work that applies to the list below, make sure to adjust neutral position of steering angle sensor
before running vehicle.
×: Required –: Not required
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION : Special Re-
pair Requirement
INFOID:0000000003766884
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
CAUTION:
To adjust neutral position of steering angle sensor, make sure to use CONSULT-III.
(Adjustment cannot be done without CONSULT-III.)
1.ALIGN THE VEHICLE STATUS
Stop the vehicle with front wheels in straight-ahead position.
>> GO TO 2.
2.PERFORM THE NEUTRAL POSITION ADJUSTMENT FOR THE STEERING ANGLE SENSOR
1. On the CONSULT-III screen, touch "WORK SUPPORT" and “ST ANG SEN ADJUSTMENT" in order.
2. Touch “START”.
Situation Adjustment of steering angle sensor neutral position
Removing/Installing ABS actuator and electric unit (control unit) —
Replacing ABS actuator and electric unit (control unit)×
Removing/Installing steering angle sensor×
Replacing steering angle sensor×
Removing/Installing steering components×
Replacing steering components×
Removing/Installing suspension components×
Replacing suspension components×
Change tires to new ones—
Tire rotation—
Adjusting wheel alignment×

INSPECTION AND ADJUSTMENT
BRC-67
< BASIC INSPECTION >[VDC/TCS/ABS]
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CAUTION:
Do not touch steering wheel while adjusting steering angle sensor.
3. After approximately 10 seconds, touch “END”.
NOTE:
After approximately 60 seconds, it ends automatically.
4. Turn ignition switch OFF, then turn it ON again.
CAUTION:
Be sure to perform above operation.
>> GO TO 3.
3.CHECK DATA MONITOR
1. Run the vehicle with front wheels in straight-ahead position, then stop.
2. Select “STR ANGLE SIG” in “DATA MONITOR” and check steering angle sensor signal.
Is the steering angle within the specified range?
YES >> GO TO 4.
NO >> Perform the neutral position adjustment for the steering angle sensor again, GO TO 1.
4.ERASE THE SELF-DIAGNOSIS MEMORY
Erase the self-diagnosis memories of the ABS actuator and electric unit (control unit) and ECM.
 ABS actuator and electric unit (control unit): Refer to BRC-80, "
CONSULT-III Function".
 ECM: Refer to EC-113, "
CONSULT-III Function".
Are the memories erased?
YES >> INSPECTION END
NO >> Check the items indicated by the self-diagnosis. STR ANGLE SIG : 0±2.5°

BRC-68
< FUNCTION DIAGNOSIS >[VDC/TCS/ABS]
VDC
FUNCTION DIAGNOSIS
VDC
System DiagramINFOID:0000000003766885
System DescriptionINFOID:0000000003766886
 Vehicle Dynamics Control system detects driver′s steering operation amount and brake pedal travel from
steering angle sensor and pressure sensor. Using information from yaw rate/side G sensor and wheel sen-
sor, VDC judges driving condition (conditions of under steer and over steer) to improve vehicle driving stabil-
ity by controlling brake application to 4 wheels and engine output.
 During VDC operation, it informs driver of system operation by flashing SLIP indicator lamp.
 Electrical system diagnosis by CONSULT-III is available.
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VDC
BRC-69
< FUNCTION DIAGNOSIS >[VDC/TCS/ABS]
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Component Parts LocationINFOID:0000000003766887
1. Steering angle sensor 2. ABS warning lamp 3. Brake warning lamp
4. VDC OFF indicator lamp 5. SLIP indicator lamp 6. Yaw rate/side G sensor
7. ABS actuator and electric unit (con-
trol unit)8. Front wheel sensor 9. VDC OFF switch
10. Rear wheel sensor
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