Nissan Quest E52. Instruction — part 841
LAN-78
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 1)]
MAIN LINE BETWEEN EPS AND ABS CIRCUIT
DTC/CIRCUIT DIAGNOSIS
MAIN LINE BETWEEN EPS AND ABS CIRCUIT
Diagnosis Procedure
INFOID:0000000009978216
1.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1.
Turn the ignition switch OFF.
2.
Disconnect the battery cable from the negative terminal.
3.
Disconnect the following harness connectors.
-
ECM
-
Power steering control module
-
ABS actuator and electric unit (control unit)
4.
Check the continuity between the power steering control module harness connector and the ABS actuator
and electric unit (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 power steering control module and the
ABS actuator and electric unit (control unit).
NO
>> Repair the main line between the power steering control module and the ABS actuator and elec-
tric unit (control unit).
Power steering control module harness connector
ABS actuator and electric unit (control unit) harness
connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
E34
8
E36
23
Existed
7
21
Existed
LAN
MAIN LINE BETWEEN ABS AND DLC CIRCUIT
LAN-79
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 1)]
C
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MAIN LINE BETWEEN ABS AND DLC CIRCUIT
Diagnosis Procedure
INFOID:0000000009978217
1.
CHECK CONNECTOR
1.
Turn the ignition switch OFF.
2.
Disconnect the battery cable from the negative terminal.
3.
Check the following terminals and connectors for damage, bend and loose connection (connector side
and harness side).
-
Harness connector E105
-
Harness connector M11
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.
-
ABS actuator and electric unit (control unit)
-
Harness connectors E105 and M11
2.
Check the continuity between the ABS actuator and electric unit (control unit) harness connector and the
harness connector.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the main line between the ABS actuator and electric unit (control unit) and the harness
connector E105.
3.
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.
YES (Past error)>>Error was detected in the main line between the ABS actuator and electric unit (control
unit) and the data link connector.
NO
>> Repair the main line between the harness connector M11 and the data link connector.
ABS actuator and electric unit (control unit) harness
connector
Harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
E36
23
E105
14
Existed
21
15
Existed
Harness connector
Data link connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M11
14
M4
6
Existed
15
14
Existed
LAN-80
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 1)]
MAIN LINE BETWEEN DLC AND A-BAG CIRCUIT
MAIN LINE BETWEEN DLC AND A-BAG CIRCUIT
Diagnosis Procedure
INFOID:0000000009978218
1.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1.
Turn the ignition switch OFF.
2.
Disconnect the battery cable from the negative terminal.
3.
Disconnect the following harness connectors.
With automatic slide door
-
Harness connector M79
-
Harness connector B225
Without automatic slide door
-
Harness connector M11
-
Harness connector E105
4.
Check the continuity between the data link connector and the harness connector.
-
With automatic slide door
-
Without automatic slide door
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 air bag diag-
nosis sensor unit.
NO
>> Repair the main line between the data link connector and the air bag diagnosis sensor unit.
Data link connector
Harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M4
6
M79
9
Existed
14
10
Existed
Data link connector
Harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M4
6
M11
41
Existed
14
40
Existed
LAN
ECM BRANCH LINE CIRCUIT
LAN-81
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 1)]
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ECM BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000009978219
1.
CHECK CONNECTOR
1.
Turn the ignition switch OFF.
2.
Disconnect the battery cable from the negative terminal.
3.
Check the terminals and connectors of the ECM 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 ECM.
2.
Check the resistance between the ECM harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 3.
NO
>> Repair the ECM branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the ECM. Refer to
Is the inspection result normal?
YES (Present error)>>Replace the ECM. Refer to the
EC-460, "Removal and Installation"
YES (Past error)>>Error was detected in the ECM branch line.
NO
>> Repair the power supply and the ground circuit.
ECM harness connector
Resistance (
Ω
)
Connector No.
Terminal No.
E16
114
113
Approx. 108 – 132
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