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
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010120063
Regarding Wiring Diagram information. Refer to
.
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]
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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
.
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-
.
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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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
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010120065
Regarding Wiring Diagram information. Refer to
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
.
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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