Nissan Leaf. Manual — part 929
LAN-178
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 4)]
MAIN LINE BETWEEN INV/MC AND DLC CIRCUIT
YES (Past error)>>Error was detected in the main line between the traction motor inverter and the data link
connector.
NO
>> Repair the main line between the harness connector M77 and the data link connector.
LAN
EV/HEV BRANCH LINE CIRCUIT (CAN COMMUNICATION CIRCUIT)
LAN-179
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 4)]
C
D
E
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B
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EV/HEV BRANCH LINE CIRCUIT (CAN COMMUNICATION CIRCUIT)
Diagnosis Procedure
INFOID:0000000010415433
1.
CHECK CONNECTOR
1. Turn the power switch OFF.
2. Disconnect the 12V battery cable from the negative terminal. Refer to
LAN-26, "Precautions for Removing
3. Check the terminals and connectors of the VCM for damage, bend and loose connection (unit side and
connector side).
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the terminal and connector.
2.
CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of VCM.
2. Check the resistance between the VCM harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 3.
NO
>> Repair the VCM branch line (CAN communication circuit side).
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the VCM. Refer to
EVC-138, "VCM : Diagnosis Procedure"
.
Is the inspection result normal?
YES (Present error)>>Replace the VCM. Refer to
EVC-423, "Removal and Installation"
.
YES (Past error)>>Error was detected in the VCM branch line (CAN communication circuit side).
NO
>> Repair the power supply and the ground circuit.
VCM harness connector
Resistance (
Ω)
Connector No.
Terminal No.
E62
75
76
Approx. 108 – 132
LAN-180
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 4)]
ABS BRANCH LINE CIRCUIT
ABS BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000010415434
1.
CHECK CONNECTOR
1. Turn the power switch OFF.
2. Disconnect the 12V battery cable from the negative terminal. Refer to
LAN-26, "Precautions for Removing
3. Check the terminals and connectors of the ABS actuator and electric unit (control unit) for damage, bend
and loose connection (unit side and connector side).
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the terminal and connector.
2.
CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of ABS actuator and electric unit (control unit).
2. Check the resistance between the ABS actuator and electric unit (control unit) harness connector termi-
nals.
Is the measurement value within the specification?
YES
>> GO TO 3.
NO
>> Repair the ABS actuator and electric unit (control unit) branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the ABS actuator and electric unit (control unit). Refer to
BRC-137, "Diagnosis Procedure"
.
Is the inspection result normal?
YES (Present error)>>Replace the ABS actuator and electric unit (control unit). Refer to
.
YES (Past error)>>Error was detected in the ABS actuator and electric unit (control unit) branch line.
NO
>> Repair the power supply and the ground circuit.
ABS actuator and electric unit (control unit) harness connector
Resistance (
Ω)
Connector No.
Terminal No.
E35
22
9
Approx. 54 – 66
LAN
BRAKE BRANCH LINE CIRCUIT
LAN-181
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 4)]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
BRAKE BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000010415435
1.
CHECK CONNECTOR
1. Turn the power switch OFF.
2. Disconnect the 12V battery cable from the negative terminal. Refer to
LAN-26, "Precautions for Removing
3. Check the terminals and connectors of the electrically-driven intelligent brake unit for damage, bend and
loose connection (unit side and connector side).
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the terminal and connector.
2.
CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of electrically-driven intelligent brake unit.
2. Check the resistance between the electrically-driven intelligent brake unit harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 3.
NO
>> Repair the electrically-driven intelligent brake unit branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the electrically-driven intelligent brake unit. Refer to
.
Is the inspection result normal?
YES (Present error)>>Replace the electrically-driven intelligent brake unit. Refer to
YES (Past error)>>Error was detected in the electrically-driven intelligent brake unit branch line.
NO
>> Repair the power supply and the ground circuit.
Electrically-driven intelligent brake unit harness connector
Resistance (
Ω)
Connector No.
Terminal No.
E34
40
39
Approx. 54 – 66
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