Nissan Leaf. Instruction — part 325
BRC-90
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
C1115 WHEEL SENSOR
3.
CHECK DATA MONITOR (1)
With CONSULT
1. Erase “Self Diagnostic Result” of “ABS”.
2. Turn the power switch OFF
→ ON → OFF.
CAUTION:
Be sure to wait of 10 seconds after turning power switch OFF or ON.
3. Set the vehicle to READY.
4. Select “ABS” and “Data Monitor”, check the “FR LH SENSOR”, “FR RH SENSOR”, “RR LH SENSOR”
and “RR RH SENSOR”.
NOTE:
Set the “Data Monitor” recording speed to “10 msec”.
5. Read a value (wheel speed) of both normal wheel sensors and error-detecting wheel sensor.
Regarding the deference at 30 km/h (19 MPH) between the wheel speed detected by the error detecting
wheel sensor and the maximum/minimum wheel speed detected by the normal wheel sensors, is the differ-
ence within 5%, respectively?
YES
>> GO TO 4.
NO
>> GO TO 5.
4.
PERFORM SELF DIAGNOSTIC (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. 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.
4. Repeat step 3 two or more times.
5. Perform “Self Diagnostic Result” of “ABS”.
Is DTC “C1115” detected?
YES
>> GO TO 5.
NO
>> Inspection End.
5.
CHECK WHEEL SENSOR
1. Turn the power switch OFF.
2. Check the wheel sensor for damage.
3. Remove dust and foreign matter adhered to the sensor rotor with a vacuum dust collector through the
wheel sensor mounting hole.
CAUTION:
Install wheel sensor with no backlash and float, and tighten the mounting bolt to the specified
torque.
• Front: Refer to
BRC-158, "FRONT WHEEL SENSOR : Exploded View"
• Rear: Refer to
BRC-159, "REAR WHEEL SENSOR : Exploded View"
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> GO TO 6.
6.
REPLACE WHEEL SENSOR (1)
With CONSULT
1. Replace wheel sensor.
-
Front: Refer to
BRC-158, "FRONT WHEEL SENSOR : Removal and Installation"
-
Rear: Refer to
BRC-159, "REAR WHEEL SENSOR : Removal and Installation"
2. Erase “Self Diagnostic Result” of “ABS”.
3. Turn the power switch OFF
→ ON → OFF.
CAUTION:
Be sure to wait of 10 seconds after turning power switch OFF or ON.
4. Set the vehicle to READY.
5. Select “ABS” and “Data Monitor”, check the “FR LH SENSOR”, “FR RH SENSOR”, “RR LH SENSOR”
and “RR RH SENSOR”.
C1115 WHEEL SENSOR
BRC-91
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
NOTE:
Set the “Data Monitor” recording speed to “10 msec”.
6. Read a value (wheel speed) of both normal wheel sensors and error-detecting wheel sensor.
Regarding the deference at 30 km/h (19 MPH) between the wheel speed detected by the error detecting
wheel sensor and the maximum/minimum wheel speed detected by the normal wheel sensors, is the differ-
ence within 5%, respectively?
YES
>> GO TO 7.
NO
>> GO TO 19.
7.
PERFORM SELF DIAGNOSTIC (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. 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.
4. Repeat step 3 two or more times.
5. Perform “Self Diagnostic Result” of “ABS”.
Is DTC “C1115” detected?
YES
>> GO TO 19.
NO
>> Inspection End.
8.
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 wheel sensor harness connector for disconnection or looseness.
Is the inspection result normal?
YES
>> GO TO 11.
NO
>> Repair or replace error-detected parts, securely lock the connector, and GO TO 9.
9.
CHECK DATA MONITOR (2)
With CONSULT
1. Erase “Self Diagnostic Result” of “ABS”.
2. Turn the power switch OFF
→ ON → OFF.
CAUTION:
Be sure to wait of 10 seconds after turning power switch OFF or ON.
3. Set the vehicle to READY.
4. Select “ABS” and “Data Monitor”, check the “FR LH SENSOR”, “FR RH SENSOR”, “RR LH SENSOR”
and “RR RH SENSOR”.
NOTE:
Set the “Data Monitor” recording speed to “10 msec”.
5. Read a value (wheel speed) of both normal wheel sensors and error-detecting wheel sensor.
Regarding the deference at 30 km/h (19 MPH) between the wheel speed detected by the error detecting
wheel sensor and the maximum/minimum wheel speed detected by the normal wheel sensors, is the differ-
ence within 5%, respectively?
YES
>> GO TO 10.
NO
>> GO TO 11.
10.
PERFORM SELF DIAGNOSTIC (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. 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.
4. Repeat step 3 two or more times.
5. Perform “Self Diagnostic Result” of “ABS”.
BRC-92
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
C1115 WHEEL SENSOR
Is DTC “C1115” detected?
YES
>> GO TO 11.
NO
>> Inspection End.
11.
CHECK TERMINAL
1. Turn the power switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) harness connector and then check the ABS actu-
ator and electric unit (control unit) pin terminals for damage or loose connection with harness connector.
3. Disconnect wheel sensor harness connector and check the each wheel sensor pin terminals for damage
or loose connection with harness connector.
Is the inspection result normal?
YES
>> GO TO 14.
NO
>> Repair or replace error-detected parts and GO TO 12.
12.
CHECK DATA MONITOR (3)
With CONSULT
1. Connect ABS actuator and electric unit (control unit) harness connector.
2. Connect wheel sensor harness connector.
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.
5. Set the vehicle to READY.
6. Select “ABS” and “Data Monitor”, check the “FR LH SENSOR”, “FR RH SENSOR”, “RR LH SENSOR”
and “RR RH SENSOR”.
NOTE:
Set the “Data Monitor” recording speed to “10 msec”.
7. Read a value (wheel speed) of both normal wheel sensors and error-detecting wheel sensor.
Regarding the deference at 30 km/h (19 MPH) between the wheel speed detected by the error detecting
wheel sensor and the maximum/minimum wheel speed detected by the normal wheel sensors, is the differ-
ence within 5%, respectively?
YES
>> GO TO 13.
NO
>> GO TO 14.
13.
PERFORM SELF DIAGNOSTIC (4)
With CONSULT
1. Drive the vehicle at approx. 30 km/h (19 MPH) or more for approx. 1 minute.
2. Stop the vehicle.
3. 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.
4. Repeat step 3 two or more times.
5. Perform “Self Diagnostic Result” of “ABS”.
Is DTC “C1115” detected?
YES
>> GO TO 14.
NO
>> Inspection End.
14.
CHECK WHEEL SENSOR HARNESS
1. Turn the power switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) harness connector.
3. Disconnect wheel sensor harness connector.
4. Check the continuity between ABS actuator and electric unit (control unit) harness connector and wheel
sensor harness connector. (Check the continuity when steering wheel is steered to RH and LH, or center
harness in wheel housing is moved.)
C1115 WHEEL SENSOR
BRC-93
< DTC/CIRCUIT DIAGNOSIS >
[WITH VDC]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Measurement connector and terminal for power supply circuit
Measurement connector and terminal for signal circuit
5. Check the continuity between ABS actuator and electric unit (control unit) harness connector and the
ground.
Is the inspection result normal?
YES
>> GO TO 15.
NO
>> Repair or replace error-detected parts and GO TO 15.
15.
CHECK DATA MONITOR (4)
With CONSULT
1. Connect ABS actuator and electric unit (control unit) harness connector.
2. Connect wheel sensor harness connector.
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.
5. Set the vehicle to READY.
6. Select “ABS” and “Data Monitor”, check the “FR LH SENSOR”, “FR RH SENSOR”, “RR LH SENSOR”
and “RR RH SENSOR”.
NOTE:
Set the “Data Monitor” recording speed to “10 msec”.
7. Read a value (wheel speed) of both normal wheel sensors and error-detecting wheel sensor.
Regarding the deference at 30 km/h (19 MPH) between the wheel speed detected by the error detecting
wheel sensor and the maximum/minimum wheel speed detected by the normal wheel sensors, is the differ-
ence within 5%, respectively?
YES
>> GO TO 16.
NO
>> GO TO 17.
16.
PERFORM SELF DIAGNOSTIC (5)
With CONSULT
1. Drive the vehicle at approx. 30 km/h (19 MPH) or more for approx. 1 minute.
2. Stop the vehicle.
3. Turn the power switch OFF
→ ON.
ABS actuator and electric unit (control unit)
Wheel sensor
Continuity
Connector
Terminal
Connector
Terminal
E35
23
E22
Front LH wheel
2
Yes
21
E39
Front RH wheel
26
B202
Rear LH wheel
11
B203
Rear RH wheel
ABS actuator and electric unit (control unit)
Wheel sensor
Continuity
Connector
Terminal
Connector
Terminal
E35
27
E22
Front LH wheel
1
Yes
12
E39
Front RH wheel
30
B202
Rear LH wheel
15
B203
Rear RH wheel
ABS actuator and electric unit (control unit)
—
Continuity
Connector
Terminal
E35
23, 27
Ground
No
21, 12
26, 30
11, 15
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