Nissan Leaf. Instruction — part 903
LAN-74
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
INV/MC BRANCH LINE CIRCUIT
INV/MC BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000010120395
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 traction motor inverter 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 traction motor inverter.
2. Check the resistance between the traction motor inverter harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 3.
NO
>> Repair the traction motor inverter branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the traction motor inverter. Refer to
Is the inspection result normal?
YES (Present error)>>Replace the traction motor inverter. Refer to
TMS-103, "Removal and Installation"
.
YES (Past error)>>Error was detected in the traction motor inverter branch line.
NO
>> Repair the power supply and the ground circuit.
Traction motor inverter harness connector
Resistance (
Ω)
Connector No.
Terminal No.
F13
14
15
Approx. 54 – 66
LAN
OBC/PD MODULE BRANCH LINE CIRCUIT
LAN-75
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
OBC/PD MODULE BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000010120396
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 PDM (Power Delivery Module) 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 PDM (Power Delivery Module).
2. Check the resistance between the PDM (Power Delivery Module) harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 3.
NO
>> Repair the PDM (Power Delivery Module) branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the PDM (Power Delivery Module). Refer to
(POWER DELIVERY MODULE) : Diagnosis Procedure"
Is the inspection result normal?
YES (Present error)>>Replace the PDM (Power Delivery Module). Refer to
VC-112, "Removal and Installa-
.
YES (Past error)>>Error was detected in the PDM (Power Delivery Module) branch line.
NO
>> Repair the power supply and the ground circuit.
PDM (Power Delivery Module) harness connector
Resistance (
Ω)
Connector No.
Terminal No.
F23
27
11
Approx. 54 – 66
LAN-76
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
DLC BRANCH LINE CIRCUIT (EV SYSTEM CAN CIRCUIT)
DLC BRANCH LINE CIRCUIT (EV SYSTEM CAN CIRCUIT)
Diagnosis Procedure
INFOID:0000000010120397
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 data link connector for damage, bend and loose connection
(connector side and harness side).
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the terminal and connector.
2.
CHECK HARNESS FOR OPEN CIRCUIT
Check the resistance between the data link connector terminals.
Is the measurement value within the specification?
YES (Present error)>>Diagnose again. Refer to
LAN-17, "Trouble Diagnosis Flow Chart"
.
YES (Past error)>>Error was detected in the data link connector branch line circuit (EV system CAN circuit
side).
NO
>> Repair the data link connector branch line (EV system CAN circuit side).
Data link connector
Resistance (
Ω)
Connector No.
Terminal No.
M4
13
12
Approx. 54 – 66
LAN
HVAC BRANCH LINE CIRCUIT
LAN-77
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
HVAC BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000010120398
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 A/C auto amp. 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 A/C auto amp.
2. Check the resistance between the A/C auto amp. harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 3.
NO
>> Repair the A/C auto amp. branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the A/C auto amp. Refer to the following.
• Auto A/C (With heat pump):
HAC-173, "A/C AUTO AMP. : Diagnosis Procedure"
• Auto A/C (Without heat pump):
HAC-333, "A/C AUTO AMP. : Diagnosis Procedure"
Is the inspection result normal?
YES (Present error)>>Replace the A/C auto amp. Refer to the following.
• Auto A/C (With heat pump):
HAC-187, "Removal and Installation"
• Auto A/C (Without heat pump):
HAC-347, "Removal and Installation"
YES (Past error)>>Error was detected in the A/C auto amp. branch line.
NO
>> Repair the power supply and the ground circuit.
A/C auto amp. harness connector
Resistance (
Ω)
Connector No.
Terminal No.
M55
28
29
Approx. 54 – 66
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