Nissan Titan A60. Instruction — part 175
BRC-78
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
VDC OFF SWITCH
VDC OFF SWITCH
Description
INFOID:0000000006165928
VDC OFF switch can deactivate (turn OFF) the VDC/TCS function by pressing the VDC OFF switch.
Component Function Check
INFOID:0000000006165929
1.
CHECK VDC OFF SWITCH OPERATION
Turn ON/OFF the VDC OFF switch and check that the VDC OFF indicator lamp in the combination meter turns
ON/OFF correctly.
Is the inspection result normal?
YES
>> Inspection End
NO
>> Go to diagnosis procedure. Refer to
Diagnosis Procedure
INFOID:0000000006165930
Regarding Wiring Diagram information, refer to
1.
CHECK VDC OFF SWITCH
Perform the VDC OFF switch component inspection. Refer to
BRC-79, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Replace VDC OFF switch.
2.
CHECK VDC OFF SWITCH HARNESS
1. Disconnect ABS actuator and electric unit (control unit) connec-
tor.
2. Check continuity between ABS actuator and electric unit (control
unit) connector E125 (A) terminal 38 and VDC OFF switch con-
nector M148 (B) terminal 1.
3. Check continuity between ABS actuator and electric unit (control
unit) connector E125 (A) terminal 38 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK VDC OFF SWITCH GROUND
Condition
VDC OFF indicator lamp illumination status
VDC OFF switch: ON
ON
VDC OFF switch: OFF
OFF
ABS actuator and electric unit
(control unit)
VDC OFF switch
Continuity
Connector
Terminal
Connector
Terminal
A: E125
38
B: M148
1
Yes
ABS actuator and electric unit (control unit)
—
Continuity
Connector
Terminal
A: E125
38
Ground
No
AWFIA0430ZZ
VDC OFF SWITCH
BRC-79
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Check continuity between VDC OFF switch connector M148 terminal
2 and ground.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Repair or replace harness.
4.
CHECK COMBINATION METER
Check if the indication and operation of combination meter are normal. Refer to
.
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit). Refer to
BRC-116, "Removal and Installa-
.
NO
>> Replace combination meter. Refer to
MWI-93, "Removal and Installation"
Component Inspection
INFOID:0000000006165931
1.
CHECK VDC OFF SWITCH
1. Turn ignition switch OFF.
2. Disconnect VDC OFF switch connector.
3. Check continuity between VDC OFF switch terminals.
Is the inspection result normal?
YES
>> Inspection End
NO
>> Replace VDC OFF switch.
Special Repair Requirement
INFOID:0000000006649004
1.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform neutral position adjustment for the steering angle sensor when replacing the ABS actuator
and electric unit (control unit). Refer to
BRC-8, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
.
>> GO TO 2
2.
CALIBRATION OF DECEL G SENSOR
Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
BRC-9, "CALIBRATION OF DECEL G SENSOR : Description"
>> END
VDC OFF switch
—
Continuity
Connector
Terminal
M148
2
Ground
Yes
AWFIA0031ZZ
VDC OFF switch terminals
Condition
Continuity
1
− 2
When VDC OFF switch is pressed.
Yes
When VDC OFF switch is released.
No
AWFIA0446ZZ
BRC-80
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
ABS WARNING LAMP
ABS WARNING LAMP
Description
INFOID:0000000006165933
×: ON –: OFF
Component Function Check
INFOID:0000000006165934
1.
CHECK ABS WARNING LAMP OPERATION
Check that the lamp illuminates for approximately 2 seconds after the ignition switch is turned ON.
Is the inspection result normal?
YES
>> Inspection End
NO
>> Go to diagnosis procedure. Refer to
Diagnosis Procedure
INFOID:0000000006165935
1.
CHECK SELF-DIAGNOSIS
Perform ABS actuator and electric unit (control unit) self-diagnosis. Refer to
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Check items displayed by self-diagnosis.
2.
CHECK COMBINATION METER
Check if the indication and operation of combination meter are normal. Refer to
.
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit). Refer to
BRC-116, "Removal and Installa-
.
NO
>> Replace combination meter. Refer to
MWI-93, "Removal and Installation"
Special Repair Requirement
INFOID:0000000006649005
1.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform neutral position adjustment for the steering angle sensor when replacing the ABS actuator
and electric unit (control unit). Refer to
BRC-8, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
.
>> GO TO 2
2.
CALIBRATION OF DECEL G SENSOR
Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
BRC-9, "CALIBRATION OF DECEL G SENSOR : Description"
>> END
Condition
ABS warning lamp
Ignition switch OFF
–
For 2 seconds after turning ON ignition switch
×
2 seconds later after turning ON ignition switch
–
ABS function is malfunctioning.
×
EBD function is malfunctioning.
×
BRAKE WARNING LAMP
BRC-81
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
BRAKE WARNING LAMP
Description
INFOID:0000000006165937
×: ON –: OFF
NOTE:
• 1: Brake warning lamp will turn on in case of parking brake operation (when switch is ON) or of brake fluid level switch operation
(when brake fluid is insufficient).
• 2: After starting engine, brake warning lamp is turned off.
Component Function Check
INFOID:0000000006165938
1.
BRAKE WARNING LAMP OPERATION CHECK
Check that the lamp illuminates after the ignition switch is turned ON, and turns OFF after the engine is
started.
Is the inspection result normal?
YES
>> Inspection End
NO
>> Go to diagnosis procedure. Refer to
Diagnosis Procedure
INFOID:0000000006165939
1.
CHECK SELF-DIAGNOSIS
Perform ABS actuator and electric unit (control unit) self-diagnosis. Refer to
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Check items displayed by self-diagnosis.
2.
CHECK COMBINATION METER
Check if the indication and operation of combination meter are normal. Refer to
.
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit). Refer to
BRC-116, "Removal and Installa-
.
NO
>> Replace combination meter. Refer to
MWI-93, "Removal and Installation"
Special Repair Requirement
INFOID:0000000006649006
1.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform neutral position adjustment for the steering angle sensor when replacing the ABS actuator
and electric unit (control unit). Refer to
BRC-8, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
.
>> GO TO 2
2.
CALIBRATION OF DECEL G SENSOR
Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
BRC-9, "CALIBRATION OF DECEL G SENSOR : Description"
>> END
Condition
Brake warning lamp (Note 1)
Ignition switch OFF
–
Ignition switch ON
× (Note 2)
EBD function is malfunctioning.
×
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