Nissan X-Trail 32. Manual — part 170

BRC-146

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC (ESP)]

C1140 ACTUATOR RELAY SYSTEM

Is DTC “C1140” detected?

YES

>> GO TO 3.

NO

>> INSPECTION END

3.

CHECK ACTUATOR RELAY POWER SUPPLY

1.

Turn the ignition switch OFF.

2.

Disconnect the ABS actuator and electric unit (control unit) harness connector.

3.

Check the voltage between ABS actuator and electric unit (control unit) harness connector and ground.

4.

Turn the ignition switch ON.

CAUTION:

Never start engine.

5.

Check the voltage between ABS actuator and electric unit (control unit) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK ACTUATOR RELAY POWER SUPPLY CIRCUIT

1.

Turn the ignition switch OFF.

2.

Check the 30A fusible link (#G).

3.

Check the continuity and short circuit between ABS actuator and electric unit (control unit) harness con-
nector terminal (25) and 30A fusible link (#G).

Is the inspection result normal?

YES

>> Perform trouble diagnosis for battery power supply.

NO

>> Repair or replace error-detected parts.

5.

CHECK ACTUATOR RELAY GROUND CIRCUIT

1.

Turn the ignition switch OFF.

2.

Check the continuity between ABS actuator and electric unit (control unit) harness connector and the
ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace error-detected parts.

6.

CHECK TERMINAL

Check ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with harness.

Is the inspection result normal?

YES

>>

Replace the ABS actuator and electric unit (control unit).

• LHD models: Refer to

BRC-217, "LHD : Removal and Installation"

.

• RHD models: Refer to

BRC-220, "RHD : Removal and Installation"

.

NO

>> Repair or replace error-detected parts.

ABS actuator and electric unit (control unit)

—

Voltage

Connector

Terminal

E36

25

Ground

10 – 16 V

ABS actuator and electric unit (control unit)

—

Voltage

Connector

Terminal

E36

25

Ground

10 – 16 V

ABS actuator and electric unit (control unit)

—

Continuity

Connector

Terminal

E36

13

Ground

Existed

38

C1142 PRESS SENSOR

BRC-147

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC (ESP)]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

C1142 PRESS SENSOR

DTC Description

INFOID:0000000010723689

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Stop lamp switch system
• ABS actuator and electric unit (control unit)
• Brake system

FAIL-SAFE

The following functions are suspended.
• VDC function
• TCS function
• Brake limited slip differential (BLSD) function
• Brake assist function
• Brake force distribution function
• hill start assist function
• Advanced hill descent control function (4WD models with gasoline engine)
• Active trace control function (control of chassis control module)
• Active ride control function (control of chassis control module)

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn the ignition switch OFF
and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.

CHECK DTC DETECTION

With CONSULT

1.

Turn the ignition switch OFF to ON.

2.

Perform self-diagnosis for “ABS”.

Is DTC “C1142” detected?

YES

>> Proceed to

BRC-147, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010723690

1.

CHECK STOP LAMP SWITCH SYSTEM

Check the stop lamp switch system. Refer to

BRC-133, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts.

2.

CHECK BRAKE FLUID LEAKAGE

Check the brake fluid leakage.
• LHD models: Refer to

BR-13, "Inspection"

.

• RHD models: Refer to

BR-77, "Inspection"

.

Is the inspection result normal?

YES

>> GO TO 3.

DTC

Display Item

(Trouble diagnosis content)

Malfunction detected condition

C1142

PRESS SEN CIRCUIT
(Pressure sensor circuit)

When a malfunction is detected in pressure sensor.

BRC-148

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC (ESP)]

C1142 PRESS SENSOR

NO

>> Repair or replace error-detected parts.

3.

CHECK

BR-100, "INSPECTION AND ADJUSTMENT"

BRAKE PIPING

Check the brake piping.
• Front
- LHD models: Refer to

BR-27, "FRONT : Inspection"

.

- RHD models: Refer to

BR-91, "FRONT : Inspection"

.

• Rear
- LHD models: Refer to

BR-31, "REAR : Inspection"

.

- RHD models: Refer to

BR-94, "REAR : Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK BRAKE PEDAL

Check the brake pedal.
• LHD models: Refer to

BR-22, "Inspection and Adjustment"

.

• RHD models: Refer to

BR-86, "Inspection and Adjustment"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts.

5.

CHECK BRAKE MASTER CYLINDER

Check the brake master cylinder.
• LHD models: Refer to

BR-35, "Inspection"

.

• RHD models: Refer to

BR-98, "Inspection"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace error-detected parts.

6.

CHECK BRAKE BOOSTER AND CHECK VALVE

Check the brake booster and the check valve.
• LHD models: Refer to

BR-38, "Inspection and Adjustment"

.

• RHD models: Refer to

BR-100, "Inspection and Adjustment"

.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace error-detected parts.

7.

CHECK VACUUM PIPING

Check the vacuum piping.
• LHD models
- MR20DD: Refer to

BR-40, "MR20DD : Inspection"

.

- QR25DE: Refer to

BR-41, "QR25DE : Inspection"

.

- R9M: Refer to

BR-42, "R9M : Inspection"

.

• RHD models: Refer to

BR-102, "Inspection"

.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace error-detected parts.

8.

CHECK FRONT DISC BRAKE

Check the front disc brake.
• LHD models
- 1 piston type: Refer to

BR-54, "BRAKE CALIPER ASSEMBLY (1 PISTON TYPE) : Inspection"

.

- 2 piston type: Refer to

BR-59, "BRAKE CALIPER ASSEMBLY (2 PISTON TYPE) : Inspection"

.

• RHD models
- 1 piston type: Refer to

BR-114, "BRAKE CALIPER ASSEMBLY (1 PISTON TYPE) : Inspection"

.

- 2 piston type: Refer to

BR-119, "BRAKE CALIPER ASSEMBLY (2 PISTON TYPE) : Inspection"

.

Is the inspection result normal?

C1142 PRESS SENSOR

BRC-149

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC (ESP)]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

YES

>> GO TO 9.

NO

>> Repair or replace error-detected parts.

9.

CHECK REAR DISC BRAKE

Check the rear disc brake.
• LHD models: Refer to

BR-66, "BRAKE CALIPER ASSEMBLY : Inspection and Adjustment"

.

• RHD models: Refer to

BR-126, "BRAKE CALIPER ASSEMBLY : Inspection and Adjustment"

.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Repair or replace error-detected parts.

10.

PERFORM SELF-DIAGNOSIS

With CONSULT

1.

Erase self-diagnosis result for “ABS”.

2.

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

3.

Perform self-diagnosis for “ABS”.

Is DTC “C1142” detected?

YES

>>

Replace the ABS actuator and electric unit (control unit).

• LHD models: Refer to

BRC-217, "LHD : Removal and Installation"

.

• RHD models: Refer to

BRC-220, "RHD : Removal and Installation"

.

NO

>> Check ABS actuator and electric unit (control unit) harness connector and terminal for damage,

looseness and disconnection. Repair or replace error-detected parts.