Nissan Leaf. Instruction — part 900
LAN-62
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
BRAKE BRANCH LINE CIRCUIT
BRAKE BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000010120383
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
LAN
IPDM-E BRANCH LINE CIRCUIT
LAN-63
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
IPDM-E BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000010120384
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 IPDM E/R 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 IPDM E/R.
2. Check the resistance between the IPDM E/R harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 3.
NO
>> Repair the IPDM E/R branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the IPDM E/R. Refer to
Is the inspection result normal?
YES (Present error)>>Replace the IPDM E/R. Refer to
PCS-29, "Removal and Installation"
YES (Past error)>>Error was detected in the IPDM E/R branch line.
NO
>> Repair the power supply and the ground circuit.
IPDM E/R harness connector
Resistance (
Ω)
Connector No.
Terminal No.
E13
27
26
Approx. 54 – 66
LAN-64
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
DLC BRANCH LINE CIRCUIT (CAN COMMUNICATION CIRCUIT)
DLC BRANCH LINE CIRCUIT (CAN COMMUNICATION CIRCUIT)
Diagnosis Procedure
INFOID:0000000010120385
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 (CAN communication cir-
cuit side).
NO
>> Repair the data link connector branch line (CAN communication circuit side).
Data link connector
Resistance (
Ω)
Connector No.
Terminal No.
M4
6
14
Approx. 54 – 66
LAN
EPS BRANCH LINE CIRCUIT
LAN-65
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
EPS BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000010120386
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 EPS 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 EPS control unit.
2. Check the resistance between the EPS control unit harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 3.
NO
>> Repair the EPS control unit branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the EPS control unit. Refer to
.
Is the inspection result normal?
YES (Present error)>>Replace the steering column assembly. Refer to
ST-35, "Removal and Installation"
YES (Past error)>>Error was detected in the EPS control unit branch line.
NO
>> Repair the power supply and the ground circuit.
EPS control unit harness connector
Resistance (
Ω)
Connector No.
Terminal No.
M37
2
1
Approx. 54 – 66
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