Nissan Titan. Manual - part 29

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

Pressure Sensor)"

.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace the front pressure sensor.

Diagnosis Procedure (Rear Pressure Sensor)

INFOID:0000000009883661

Regarding Wiring Diagram information, refer to 

BRC-92, "Wiring Diagram"

.

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

BRC-58

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

C1142 PRESS SENSOR

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness or connector.

3.

REAR PRESSURE SENSOR INSPECTION

1. Reconnect the rear pressure sensor and ABS actuator and electric unit (control unit) connectors.

2. Perform the “PRESS SEN2” component inspection. Refer to 

BRC-58, "Component Inspection (Rear Pres-

sure Sensor)"

.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace the rear pressure sensor.

Component Inspection (Front Pressure Sensor)

INFOID:0000000009883662

1.

CHECK DATA MONITOR

On “DATA MONITOR”, select “PRESS SENSOR” and check the brake fluid pressure.

Is the inspection result normal?

YES

>> Inspection End

NO

>> Go to diagnosis procedure. Refer to 

BRC-56, "Diagnosis Procedure (Front Pressure Sensor)"

.

Component Inspection (Rear Pressure Sensor)

INFOID:0000000009883663

1.

CHECK DATA MONITOR

On “DATA MONITOR”, select “PRESS SEN2” and check the brake fluid pressure.

Is the inspection result normal?

YES

>> Inspection End

NO

>> Go to diagnosis procedure. Refer to 

BRC-57, "Diagnosis Procedure (Rear Pressure Sensor)"

.

Special Repair Requirement

INFOID:0000000009883664

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

POSITION : Description"

.

>> 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).

Refer to 

BRC-9, "CALIBRATION OF DECEL G SENSOR : Description"

.

>> END

Condition

PRESS SENSOR

(DATA MONITOR)

With ignition switch turned ON and brake pedal released.

Approx. 0 bar

With ignition switch turned ON and brake pedal depressed.

Positive value

Condition

PRESS SEN2

(DATA MONITOR)

With ignition switch turned ON and brake pedal released.

Approx. 0 bar

With ignition switch turned ON and brake pedal depressed.

Positive value

C1143, C1144 STEERING ANGLE SENSOR

BRC-59

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

C1143, C1144 STEERING ANGLE SENSOR

Description

INFOID:0000000009883665

The steering angle sensor detects the rotation amount, angular velocity and direction of the steering wheel,

and transmits the data to the ABS actuator and electric unit (control unit) via CAN communication.

DTC Logic

INFOID:0000000009883666

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-59, "Diagnosis Procedure"

.

NO

>> Inspection End

Diagnosis Procedure

INFOID:0000000009883667

Regarding Wiring Diagram information, refer to 

BRC-92, "Wiring Diagram"

.

1.

CONNECTOR INSPECTION

1. Turn ignition switch OFF.

2. Disconnect ABS actuator and electric unit (control unit) and steering angle sensor connectors.

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 

BRC-24, "CONSULT Function

(ABS)"

.

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 STEERING ANGLE SENSOR HARNESS

1. Turn ignition switch OFF.

2. Disconnect steering angle sensor connector.

DTC

Display item

Malfunction detected condition

Possible cause

C1143

ST ANG SEN CIRCUIT

Neutral position of steering angle sensor is dislocated, or 
the steering angle sensor is malfunctioning.

• Harness or connector
• Steering angle sensor
• ABS actuator and electric unit 

(control unit)

C1144

ST ANG SEN SIGNAL

Neutral position of steering angle sensor is not finished.

Self-diagnosis results

ST ANG SEN CIRCUIT

ST ANG SEN SIGNAL

BRC-60

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

C1143, C1144 STEERING ANGLE SENSOR

3. Check continuity between steering angle sensor connector M17

terminal 2 and ground.

4. Turn ignition switch ON.

5. Check voltage between steering angle sensor connector M17

terminal 3 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace malfunctioning components.

3.

CHECK DATA MONITOR

1. Connect the steering angle sensor and ABS actuator and electric unit (control unit) connectors.

2. Perform the steering angle sensor component inspection. Refer to 

BRC-60, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace ABS actuator and electric unit (control unit). Refer to 

BRC-116, "Removal and Installa-

tion"

.

NO

>> Replace steering angle sensor and adjust neutral position of steering angle sensor. Refer to 

BRC-

118, "Removal and Installation"

.

Component Inspection

INFOID:0000000009883668

1.

CHECK DATA MONITOR

Select “STR ANGLE SIG” in “DATA MONITOR” and check steering angle sensor signal.

Is the inspection result normal?

YES

>> Inspection End

NO

>> Go to diagnosis procedure. Refer to 

BRC-59, "Diagnosis Procedure"

.

Special Repair Requirement

INFOID:0000000009883669

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

POSITION : Description"

.

>> GO TO 2

Steering angle sensor

—

Continuity

Connector

Terminal

M17

2

Ground

Yes

WFIA0399E

Steering angle sensor

—

Voltage

Connector

Terminal

M17

3

Ground

Battery voltage

AWFIA0023ZZ

Steering condition

STR ANGLE SIG (DATA MONITOR)

Driving straight

±2.5 °

Turn 90 

° to right

Approx. +90 

°

Turn 90 

° to left

Approx. 

−90 °