Nissan Quest E52. Manual - part 246

C1130 ENGINE SIGNAL

BRC-77

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

C1130 ENGINE SIGNAL

DTC Logic

INFOID:0000000009651395

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn 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 “C1130” detected?

YES

>> Proceed to 

BRC-77, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009651396

1.

CHECK ENGINE SYSTEM

 With 

CONSULT

Perform self-diagnosis for “ENGINE”.

Is any DTC detected?

YES

>> Check the DTC.

NO

>> GO TO 2.

2.

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

 With 

CONSULT

1.

Erase self-diagnosis result for “ABS”.

2.

Turn the ignition switch OFF.

3.

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

4.

Stop the vehicle.

5.

Check that the malfunction indicator lamp (MIL) turns OFF.

6.

After the vehicle stops, perform self-diagnosis for “ABS”.

Is DTC “C1130” detected?

YES

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

BRC-123, "Removal and Installa-

tion"

.

NO

>> Check pin terminals and connection of each harness connector for abnormal conditions. Repair or

replace error-detected parts.

DTC

Display Item

Malfunction detected condition

Possible causes

C1130

ENGINE SIGNAL 1

When a malfunction is detected in ECM system.

• ECM
• ABS actuator and electric unit 

(control unit)

• CAN communication line

BRC-78

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC]

C1140 ACTUATOR RELAY SYSTEM

C1140 ACTUATOR RELAY SYSTEM

DTC Logic

INFOID:0000000009651397

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn 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 “C1140” detected?

YES

>> Proceed to 

BRC-78, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009651398

1.

CHECK CONNECTOR

1.

Turn the ignition switch OFF.

2.

Check ABS actuator and electric unit (control unit) harness connector for disconnection or looseness.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts, securely lock the connector, and GO TO 2.

2.

PERFORM SELF-DIAGNOSIS

Perform self-diagnosis for “ABS” again.

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

3.

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

DTC

Display Item

Malfunction detected condition

Possible causes

C1140

ACTUATOR RLY

When a malfunction is detected in actuator relay.

• Harness or connector
• ABS actuator and electric unit 

(control unit)

• Fusible link
• Battery power supply system

ABS actuator and electric unit (control unit)

—

Voltage

Connector

Terminal

E36

1

Ground

10 

−

 16 V

C1140 ACTUATOR RELAY SYSTEM

BRC-79

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

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 20 A fusible link (#G).

3.

Check continuity and short circuit between ABS actuator and electric unit (control unit) harness connector
terminal (1) and 20 A fusible link (#G).

Is the inspection result normal?

YES

>> Perform trouble diagnosis for battery power supply. Refer to 

PG-11, "Wiring Diagram - BATTERY

POWER SUPPLY -"

.

NO

>> Repair or replace error-detected parts.

5.

CHECK ACTUATOR RELAY GROUND CIRCUIT

1.

Turn the ignition switch OFF.

2.

Check 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
connector.

Is the inspection result normal?

YES

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

BRC-123, "Removal and Installa-

tion"

.

NO

>> Repair or replace error-detected parts.

ABS actuator and electric unit (control unit)

—

Voltage

Connector

Terminal

E36

1

Ground

10 

−

 16 V

ABS actuator and electric unit (control unit)

—

Continuity

Connector

Terminal

E36

13

Ground

Existed

26

BRC-80

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC]

C1142 PRESS SENSOR

C1142 PRESS SENSOR

DTC Logic

INFOID:0000000009651399

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn 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-80, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009651400

1.

CHECK STOP LAMP SWITCH

Check stop lamp switch system. Refer to 

BRC-70, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts.

2.

CHECK DATA MONITOR

With CONSULT

1.

Erase self--diagnosis result for “ABS”.

2.

Turn the ignition switch OFF, and wait 10 seconds or more.

3.

Stat the engine.

CAUTION:

Stop the vehicle.

4.

Select “ABS”, “DATA MONITOR” and “PRESS SENSOR” according to this order. Check that data monitor
display. Refer to 

BRC-35, "Reference Value"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 3.

3.

CHECK BRAKE FLUID LEAKAGE

Check brake fluid leakage. Refer to 

BR-10, "Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK BRAKE PIPING

DTC

Display Item

Malfunction detected condition

Possible causes

C1142

PRESS SEN CIRCUIT

• Pressure sensor signal line is open or shorted.
• When an open circuit is detected in pressure sen-

sor circuit

• When an short circuit is detected in pressure sen-

sor circuit

• Stop lamp switch system
• ABS actuator and electric unit 

(control unit)

• Brake system