Nissan Leaf. Instruction — part 921
LAN-146
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 3)]
MAIN LINE BETWEEN DLC AND VSP CIRCUIT
MAIN LINE BETWEEN DLC AND VSP CIRCUIT
Diagnosis Procedure
INFOID:0000000010415404
1.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Turn the power switch OFF.
2. Disconnect the 12V battery cable from the negative terminal. Refer to
LAN-26, "Precautions for Removing
3. Disconnect the following harness connectors.
-
VCM
-
Approaching vehicle sound for pedestrians (VSP) control unit
4. Check the continuity between the data link connector harness connector and the approaching vehicle
sound for pedestrians (VSP) control unit harness connector.
Is the inspection result normal?
YES (Present error)>>Check CAN system type decision again.
YES (Past error)>>Error was detected in the main line between the data link connector and the approaching
vehicle sound for pedestrians (VSP) control unit harness connector.
NO
>> Repair the main line between the data link connector and the approaching vehicle sound for
pedestrians (VSP) control unit harness connector.
Data link connector
Approaching vehicle sound for pedestrians (VSP)
control unit harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M4
6
M47
4
Existed
14
12
Existed
LAN
MAIN LINE BETWEEN INV/MC AND DLC CIRCUIT
LAN-147
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 3)]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
MAIN LINE BETWEEN INV/MC AND DLC CIRCUIT
Diagnosis Procedure
INFOID:0000000010415405
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 following terminals and connectors for damage, bend and loose connection (connector side
and harness side).
-
Harness connector F2
-
Harness connector E60
-
Harness connector E105
-
Harness connector M77
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the terminal and connector.
2.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the following harness connectors.
-
Traction motor inverter
-
Harness connectors F2 and E60
2. Check the continuity between the traction motor inverter harness connector and the harness connector.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the main line between the traction motor inverter and the harness connector F2.
3.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Disconnect the harness connectors E105 and M77.
2. Check the continuity between the harness connectors.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair the main line between the harness connector E60 and the harness connector E105.
4.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
Check the continuity between the harness connector and the data link connector.
Is the inspection result normal?
YES (Present error)>>Check CAN system type decision again.
Traction motor inverter harness connector
Harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
F13
14
F2
5
Existed
15
6
Existed
Harness connector
Harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
E60
5
E105
50
Existed
6
49
Existed
Harness connector
Data link connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M77
50
M4
13
Existed
49
12
Existed
LAN-148
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 3)]
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-149
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 3)]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
EV/HEV BRANCH LINE CIRCUIT (CAN COMMUNICATION CIRCUIT)
Diagnosis Procedure
INFOID:0000000010415406
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
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