Nissan Sentra. Manual - part 173

C1142 PRESS SENSOR

BRC-79

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

C

D

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G

H

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M

A

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BRC

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C1142 PRESS SENSOR

DTC Logic

INFOID:0000000009757858

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF DIAGNOSTIC RESULT

With CONSULT.

1. Turn ignition switch ON.

2. Perform self diagnostic result.
Is DTC C1142 detected?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-79, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009757859

1.

CHECK STOP LAMP SWITCH SYSTEM

Check stop lamp switch system. Refer to 

BRC-70, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace malfunctioning components.

2.

CHECK BRAKE FLUID LEAKAGE

Check brake fluid leakage. Refer to 

BR-9, "Inspection"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace malfunctioning components.

3.

CHECK BRAKE PEDAL

Check brake pedal. Refer to 

BR-15, "Adjustment"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace malfunctioning components.

4.

CHECK SELF DIAGNOSTIC RESULT

With CONSULT.

1. Turn ignition switch ON.

2. Perform self diagnostic result.

3. Erase DTCs.

4. Start engine and drive vehicle for a short period of time.

5. Turn ignition switch ON.

6. Perform self diagnostic result.
Is DTC C1142 detected?

YES

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

BRC-110, "Removal and Installa-

tion"

.

NO

>> Inspection End.

DTC

Display Item

Malfunction detected condition

Possible causes

C1142

PRESS SEN CIRCUIT

When a malfunction is detected in master cylinder 
pressure sensor.

• Stop lamp switch system
• ABS actuator and electric unit 

(control unit)

• Brake system

BRC-80

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

C1143 STEERING ANGLE SENSOR

C1143 STEERING ANGLE SENSOR

DTC Logic

INFOID:0000000009757860

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF DIAGNOSTIC RESULT

With CONSULT.

1. Turn ignition switch ON.

2. Perform self diagnostic result.
Is DTC C1143 detected?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-80, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009757861

Regarding Wiring Diagram information, refer to 

BRC-44, "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 connectors and terminals for deformation, disconnection, looseness or damage.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace as necessary.

2.

CHECK STEERING ANGLE SENSOR MOUNTING CONDITION

Check steering angle sensor mounting condition.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace malfunctioning components.

3.

CHECK STEERING ANGLE SENSOR POWER SUPPLY

1. Turn ignition switch OFF.

2. Disconnect steering angle sensor connector.

3. Turn ignition switch ON.

4. Check voltage between steering angle sensor connector M14 terminal 4 and ground.

Is the inspection result normal?

YES

>> GO TO 4.

DTC

Display Item

Malfunction detected condition

Possible causes

C1143

ST ANG SEN CIRCUIT

When a malfunction is detected in steering angle sen-
sor.

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

(control unit)

• Fuse
• Ignition power supply system
• CAN communication line

Steering angle sensor

—

Voltage

(Approx.)

Connector

Terminal

M14

4

Ground

Battery voltage

C1143 STEERING ANGLE SENSOR

BRC-81

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

C

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BRC

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NO

>> Check the following:

• Repair or replace harness.

• Fuse.

4.

CHECK STEERING ANGLE SENSOR GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Check continuity between steering angle sensor connector M14 terminal 1 and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace malfunctioning components.

5.

CHECK CAN COMMUNICATION LINE

Check “STRG BRANCH LINE CIRCUIT”. Refer to 

LAN-66, "Diagnosis Procedure"

 (type 1) or 

LAN-79, "Diag-

nosis Procedure"

 (type 2).

Is the inspection result normal?

YES

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

BRC-110, "Removal and Installa-

tion"

.

NO

>> Repair or replace malfunctioning components.

Steering angle sensor

—

Continuity

Connector

Terminal

M14

1

Ground

Yes

BRC-82

< DTC/CIRCUIT DIAGNOSIS >

[VDC/TCS/ABS]

C1144 INCOMPLETE STEERING ANGLE SENSOR ADJUSTMENT

C1144 INCOMPLETE STEERING ANGLE SENSOR ADJUSTMENT

DTC Logic

INFOID:0000000009757862

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF DIAGNOSTIC RESULT

With CONSULT.

1. Turn ignition switch ON.

2. Perform self diagnostic result.
Is DTC C1144 detected?

YES

>> Proceed to diagnosis procedure. Refer to 

BRC-82, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009757863

1.

ADJUST THE NEUTRAL POSITION OF STEERING ANGLE SENSOR

Perform neutral position adjustment of steering angle sensor. Refer to 

BRC-54, "Work Procedure"

.

>> GO TO 2.

2.

CHECK SELF DIAGNOSTIC RESULT

With CONSULT.

Perform self diagnostic result.
Is DTC C1144 detected?

YES

>> GO TO 3.

NO

>> Inspection End.

3.

CHECK STEERING ANGLE SENSOR SYSTEM

Check steering angle sensor system. Refer to 

BRC-80, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

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

BRC-110, "Removal and Installa-

tion"

.

NO

>> Repair or replace malfunctioning components.

DTC

Display Item

Malfunction detected condition

Possible causes

C1144

ST ANG SEN SIGNAL

When neutral position adjustment of steering angle 
sensor is not complete.

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

(control unit)

• Incomplete neutral position ad-

justment of steering angle sen-
sor