Nissan Leaf. Manual - part 323

 

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Nissan Leaf. Manual - part 323

 

 

BRC-82

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC]

C1111 ABS MOTOR, MOTOR RELAY SYSTEM

C1111 ABS MOTOR, MOTOR RELAY SYSTEM

DTC Logic

INFOID:0000000010120062

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn power 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 power switch OFF 

→ ON, and wait 30 seconds.

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

3. Stop the vehicle.

4. Turn the power switch OFF 

→ ON.

CAUTION:

• Be sure to wait of 10 seconds after turning power switch OFF or ON.

• Set the vehicle to READY.

5. Repeat step 4 two or more times.

6. Perform “Self Diagnostic Result” of “ABS”.
Is DTC “C1111” detected?

YES

>> Proceed to 

BRC-82, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000010120063

Regarding Wiring Diagram information. Refer to 

BRC-58, "Wiring Diagram"

.

1.

CHECK CONNECTOR

1. Turn the power switch OFF.

2. Check the 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 DIAGNOSTIC

With CONSULT

1. Turn the power switch OFF 

→ ON, and wait 30 seconds.

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

3. Stop the vehicle.

4. Turn the power switch OFF 

→ ON.

CAUTION:

• Be sure to wait of 10 seconds after turning power switch OFF or ON.

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
• 12V battery power supply sys-

tem

C1111 ABS MOTOR, MOTOR RELAY SYSTEM

BRC-83

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC]

C

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G

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BRC

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• Set the vehicle to READY.

5. Repeat step 4 two or more times.

6. Perform “Self Diagnostic Result” of “ABS”.
Is DTC “C1111” detected?

YES

>> GO TO 3.

NO

>> Inspection End.

3.

CHECK ABS MOTOR AND MOTOR RELAY POWER SUPPLY

1. Turn the power switch OFF.

2. Disconnect 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 power switch ON.

CAUTION:

Never set the vehicle to READY.

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

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 4.

4.

CHECK ABS MOTOR AND MOTOR RELAY POWER SUPPLY CIRCUIT

1. Turn the power switch OFF.

2. Check the 30A fusible link (#L).

3. Check the continuity and short circuit between ABS actuator and electric unit (control unit) harness con-

nector terminal (1) and 30A fusible link (#L).

Is the inspection result normal?

YES

>> Perform trouble diagnosis for 12V battery power supply. Refer to 

PG-15, "Wiring Diagram — Bat-

tery Power Supply —"

.

NO

>> Repair or replace error-detected parts. GO TO 5.

5.

ERASE SELF DIAGNOSTIC RESULT (1)

With CONSULT

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

2. Stop the vehicle.

3. Erase “Self Diagnostic Result” of “ABS”.

4. Turn the power switch OFF 

→ ON → OFF.

CAUTION:

Be sure to wait of 10 seconds after turning power switch OFF or ON.

>> Inspection End.

6.

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT

1. Turn the power switch OFF.

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

ground.

ABS actuator and electric unit (control unit)

—

Voltage

(Approx.)

Connector

Terminal

E35

1

Ground

Battery voltage

ABS actuator and electric unit (control unit)

—

Voltage

(Approx.)

Connector

Terminal

E35

1

Ground

Battery voltage

BRC-84

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC]

C1111 ABS MOTOR, MOTOR RELAY SYSTEM

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace error-detected parts.GO TO 7.

7.

ERASE SELF DIAGNOSTIC RESULT (2)

With CONSULT

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

2. Stop the vehicle.

3. Erase “Self Diagnostic Result” of “ABS”.

4. Turn the power switch OFF 

→ ON → OFF.

CAUTION:

Be sure to wait of 10 seconds after turning power switch OFF or ON.

>> Inspection End.

8.

CHECK TERMINAL

1. Turn the power switch OFF.

2. Check the 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-162, "Removal and Installa-

tion"

.

NO

>> Repair or replace error-detected parts.GO TO 9.

9.

ERASE SELF DIAGNOSTIC RESULT (3)

With CONSULT

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

2. Stop the vehicle.

3. Erase “Self Diagnostic Result” of “ABS”.

4. Turn the power switch OFF 

→ ON → OFF.

CAUTION:

Be sure to wait of 10 seconds after turning power switch OFF or ON.

>> Inspection End.

ABS actuator and electric unit (control unit)

—

Continuity

Connector

Terminal

E35

3

Ground

Yes

4

C1113, C1145, C1146 YAW RATE/SIDE/DECEL G SENSOR

BRC-85

< DTC/CIRCUIT DIAGNOSIS >

[WITH VDC]

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BRC

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C1113, C1145, C1146 YAW RATE/SIDE/DECEL G SENSOR

DTC Logic

INFOID:0000000010120064

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn power 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 power switch OFF 

→ ON.

CAUTION:

• Be sure to wait of 10 seconds after turning power switch OFF or ON.

• Set the vehicle to READY.

2. Repeat step 1 two or more times.

3. Perform “Self Diagnostic Result” of “ABS”.
Is DTC “C1113” “C1145” or “C1146” detected?

YES

>> Proceed to 

BRC-85, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000010120065

Regarding Wiring Diagram information. Refer to 

BRC-58, "Wiring Diagram"

.

1.

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

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

BRC-137, "Diagnosis

Procedure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts.

2.

CHECK CONNECTOR

1. Turn the power switch OFF.

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

3. Check the yaw rate/side/decel G sensor harness connector for disconnection or looseness.

DTC

Display item

Malfunction detected condition

Possible cause

C1113

G-SENSOR

When a malfunction is detected in decel G signal.

• Harness or connector
• Yaw rate/side/decel G sensor
• ABS actuator and electric unit 

(control unit)

C1145

YAW RATE SENSOR

• When a malfunction is detected in yaw rate signal.
• When a signal line of yaw rate/side/decel G sensor is 

open or shorted.

• When power supply voltage of yaw rate/side/decel G 

sensor is in following state.

- Yaw rate/side/decel G sensor power supply voltage: 

4.8 V 

≥ yaw rate/side/decel G sensor power supply 

voltage

- Yaw rate/side/decel G sensor power supply voltage: 

5.2 V 

≤ yaw rate/side/decel G sensor power supply 

voltage

C1146

SIDE G-SEN CIRCUIT

When a malfunction is detected in side G signal.

 

 

 

 

 

 

 

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