Nissan Quest E52. Manual - part 242

C1110 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

BRC-61

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC]

C

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BRC

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C1110 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

DTC Logic

INFOID:0000000009651382

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 “C1110” detected?

YES

>> Proceed to 

BRC-61, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009651383

1.

CHECK SELF-DIAGNOSIS RESULTS

Replace ABS actuator and electric unit (control unit) even if other display than “C1110” is displayed in self-
diagnosis for “ABS”.

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

BRC-123, "Removal and Installa-

tion"

.

DTC

Display Item

Malfunction detected condition

Possible causes

C1110

CONTROLLER FAILURE

When there is an internal malfunction in the ABS ac-
tuator and electric unit (control unit).

ABS actuator and electric unit 
(control unit)

BRC-62

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC]

C1111 ABS MOTOR, MOTOR RELAY SYSTEM

C1111 ABS MOTOR, MOTOR RELAY SYSTEM

DTC Logic

INFOID:0000000009651384

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 “C1111” detected?

YES

>> Proceed to 

BRC-62, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009651385

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 “C1111” detected?

YES

>> GO TO 3.

NO

>> INSPECTION END

3.

CHECK ABS MOTOR AND MOTOR 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

C1111

PUMP MOTOR

When a malfunction is detected in motor or motor re-
lay.

• 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

14

Ground

10 

−

 16 V

C1111 ABS MOTOR, MOTOR RELAY SYSTEM

BRC-63

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC]

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Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK ABS MOTOR AND MOTOR RELAY POWER SUPPLY CIRCUIT

1.

Turn the ignition switch OFF.

2.

Check 30 A fusible link (#F).

3.

Check continuity and short circuit between ABS actuator and electric unit (control unit) harness connector
terminal (14) and 30 A fusible link (#F).

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 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) 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

14

Ground

10 

−

 16 V

ABS actuator and electric unit (control unit)

—

Continuity

Connector

Terminal

E36

13

Ground

Existed

26

BRC-64

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC]

C1115 WHEEL SENSOR

C1115 WHEEL SENSOR

DTC Logic

INFOID:0000000009651386

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.

Stat the engine.

2.

Drive the vehicle at approx. 30 km/h (19 MPH) or more for approx. 1 minute.

3.

Stop the vehicle.

4.

Perform self-diagnosis for “ABS”.

Is DTC “C1115” detected?

YES

>> Proceed to 

BRC-64, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009651387

CAUTION:

For wheel sensor, never check between terminals.

1.

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY SYSTEM

Check ABS actuator and electric unit (control unit) power supply system. Refer to 

BRC-101, "Diagnosis Proce-

dure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts.

2.

CHECK TIRE

1.

Turn the ignition switch OFF.

2.

Check tire air pressure, wear and size. Refer to 

WT-51, "Tire Air Pressure"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Adjust air pressure or replace tire and GO TO 3.

3.

CHECK DATA MONITOR (1)

With CONSULT

1.

Erase self-diagnosis result for “ABS”.

2.

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

3.

Start the engine.

4.

Select “ABS” and “DATA MONITOR”, check “FR LH SENSOR”, “FR RH SENSOR”, “RR LH SENSOR”
and “RR RH SENSOR”.
NOTE:

DTC

Display Item

Malfunction detected condition

Possible causes

C1115

ABS SENSOR
[ABNORMAL SIGNAL]

When difference in wheel speed between any wheel 
and others is detected the vehicle is driven, because 
of installation of other tires than specified.

• Harness or connector
• Wheel sensor
• Sensor rotor
• ABS actuator and electric unit 

(control unit)

• Tire