Nissan Titan A60. Manual — part 169
BRC-54
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C1140 ACTUATOR RLY
C1140 ACTUATOR RLY
Description
INFOID:0000000006165878
Activates or deactivates each solenoid valve according to the signals transmitted by the ABS actuator and
electric unit (control unit).
DTC Logic
INFOID:0000000006165879
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> Inspection End
Diagnosis Procedure
INFOID:0000000006648994
Regarding Wiring Diagram information, refer to
1.
CONNECTOR INSPECTION
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connector.
3. Check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair
or replace terminals.
4. Reconnect connectors and then perform the self-diagnosis. Refer to
.
Is any item indicated on the self-diagnosis display?
YES
>> GO TO 2
NO
>> Poor connection of connector terminals. Repair or replace connector.
2.
CHECK SOLENOID, VDC SWITCH-OVER VALVE AND ACTUATOR RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connec-
tor.
3. Check voltage between ABS actuator and electric unit (control
unit) connector E125 terminal 32 and ground.
Is the inspection result normal?
YES
>> GO TO 3
DTC
Display item
Malfunction detected condition
Possible cause
C1140
ACTUATOR RLY
ABS actuator relay or circuit malfunction.
• Harness or connector
• ABS actuator and electric unit
(control unit)
Self-diagnosis results
ACTUATOR RLY
ABS actuator and electric unit (control unit)
—
Voltage
Connector
Terminal
E125
32
Ground
Battery voltage
AWFIA0018ZZ
C1140 ACTUATOR RLY
BRC-55
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
NO
>> Repair or replace malfunctioning components.
3.
CHECK SOLENOID, VDC SWITCH-OVER VALVE AND ACTUATOR RELAY GROUND CIRCUIT
Check continuity between ABS actuator and electric unit (control
unit) connector E125 terminals 16, 47 and ground.
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit).
BRC-116, "Removal and Installation"
.
NO
>> Repair or replace malfunctioning components.
Component Inspection
INFOID:0000000006648995
1.
CHECK ACTIVE TEST
1. On “ACTIVE TEST”, select “ABS MOTOR”.
2. Touch On and Off on screen. Make sure motor relay and actuator relay operates as shown in table below.
Is the inspection result normal?
YES
>> Inspection End
NO
>> Go to diagnosis procedure. Refer to
Special Repair Requirement
INFOID:0000000006648996
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
ABS actuator and electric unit (control unit)
—
Continuity
Connector
Terminal
E125
16, 47
Ground
Yes
AWFIA0016ZZ
Operation
On
Off
MOTOR RELAY
On
Off
ACTUATOR RLY
On
On
BRC-56
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C1142 PRESS SENSOR
C1142 PRESS SENSOR
Description
INFOID:0000000006165883
The front and rear pressure sensors convert the brake fluid pressure to an electric signal and transmit it to the
ABS actuator and electric unit (control unit).
DTC Logic
INFOID:0000000006165884
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES
>> Proceed to diagnosis procedure. Refer to
BRC-56, "Diagnosis Procedure (Front Pressure Sen-
BRC-57, "Diagnosis Procedure (Rear Pressure Sensor)"
.
NO
>> Inspection End
Diagnosis Procedure (Front Pressure Sensor)
INFOID:0000000006165885
Regarding Wiring Diagram information, refer to
1.
CONNECTOR INSPECTION
1. Turn the ignition switch OFF.
2. Disconnect the front pressure sensor and ABS actuator and electric unit (control unit) connectors.
3. Inspect the terminals for deformation, disconnection, looseness, or damage.
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Repair connector.
2.
FRONT PRESSURE SENSOR CIRCUIT INSPECTION
1. Measure the continuity between the ABS actuator and electric
unit (control unit) connector E125 (A) and front pressure sensor
connector E31 (B).
2. Measure the continuity between the ABS actuator and electric unit (control unit) connector E125 (A) and
body ground.
DTC
Display item
Malfunction detected condition
Possible cause
C1142
PRESS SEN CIRCUIT
Pressure sensor signal line is open or shorted, or pres-
sure sensor is malfunctioning.
• Harness or connector
• Pressure sensor
• ABS actuator and electric unit
(control unit)
Self-diagnosis results
PRESS SEN CIRCUIT
ABS actuator and electric unit
(control unit)
Front pressure sensor
Continuity
Connector
Terminal
Connector
Terminal
A: E125
18
B: E31
3
Yes
19
1
20
2
AWFIA0021ZZ
C1142 PRESS SENSOR
BRC-57
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness or connector.
3.
FRONT PRESSURE SENSOR INSPECTION
1. Reconnect the front pressure sensor and ABS actuator and electric unit (control unit) connectors.
2. Perform the “PRESS SENSOR” component inspection. Refer to
BRC-58, "Component Inspection (Front
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace the front pressure sensor.
Diagnosis Procedure (Rear Pressure Sensor)
INFOID:0000000006649013
Regarding Wiring Diagram information, refer to
1.
CONNECTOR INSPECTION
1. Turn the ignition switch OFF.
2. Disconnect the rear pressure sensor and ABS actuator and electric unit (control unit) connectors.
3. Inspect the terminals for deformation, disconnection, looseness, or damage.
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Repair connector.
2.
REAR PRESSURE SENSOR CIRCUIT INSPECTION
1. Measure the continuity between the ABS actuator and electric
unit (control unit) connector E125 (A) and rear pressure sensor
connector E32 (B).
2. Measure the continuity between the ABS actuator and electric unit (control unit) connector E125 (A) and
body ground.
ABS actuator and electric unit (control
unit)
—
Continuity
Connector
Terminal
A: E125
18
Ground
No
19
20
ABS actuator and electric unit
(control unit)
Rear pressure sensor
Continuity
Connector
Terminal
Connector
Terminal
A: E125
21
B: E32
1
Yes
22
3
23
2
ABS actuator and electric unit (control
unit)
—
Continuity
Connector
Terminal
A: E125
21
Ground
No
22
23
AWFIA0022ZZ
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