Infiniti G37 Coupe. Manual — part 878
LAN
MAIN LINE BETWEEN BCM AND DLC CIRCUIT
LAN-185
< COMPONENT DIAGNOSIS >
[CAN SYSTEM (TYPE 8)]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
COMPONENT DIAGNOSIS
MAIN LINE BETWEEN BCM AND DLC CIRCUIT
Diagnosis Procedure
INFOID:0000000001679580
INSPECTION PROCEDURE
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
-
BCM
4.
Check the continuity between the BCM 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 BCM and the data link connector.
NO
>> Repair the main line between the BCM and the data link connector.
BCM harness connector
Data link connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M122
91
M24
6
Existed
90
14
Existed
LAN-186
< COMPONENT DIAGNOSIS >
[CAN SYSTEM (TYPE 8)]
MAIN LINE BETWEEN DLC AND ADP CIRCUIT
MAIN LINE BETWEEN DLC AND ADP CIRCUIT
Diagnosis Procedure
INFOID:0000000001679582
INSPECTION PROCEDURE
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 M7
-
Harness connector B1
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the terminal and connector.
2.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1.
Disconnect the harness connectors M7 and B1.
2.
Check the continuity between the data link connector and the harness connector.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the main line between the data link connector and the harness connector M7.
3.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
Check the continuity between the harness connector terminals.
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 driver seat
control unit.
NO
>> Repair the main line between the harness connector B1 and the driver seat control unit.
Data link connector
Harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M24
6
M7
20
Existed
14
21
Existed
Connector No.
Terminal No.
Continuity
B1
20
22
Existed
21
23
Existed
LAN
MAIN LINE BETWEEN ADP AND ABS CIRCUIT
LAN-187
< COMPONENT DIAGNOSIS >
[CAN SYSTEM (TYPE 8)]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
MAIN LINE BETWEEN ADP AND ABS CIRCUIT
Diagnosis Procedure
INFOID:0000000001679584
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 B1
-
Harness connector M7
-
Harness connector M6
-
Harness connector E106
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the terminal and connector.
2.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1.
Disconnect the harness connectors B1 and M7.
2.
Check the continuity between the harness connector terminals.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the main line between the driver seat control unit and the harness connector B1.
3.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1.
Disconnect the harness connectors M6 and E106.
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 connectors M7 and M6.
4.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1.
Disconnect the connector of ABS actuator and electric unit (control unit).
2.
Check the continuity between the 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 driver seat control unit and the ABS actu-
ator and electric unit (control unit).
Connector No.
Terminal No.
Continuity
B1
20
22
Existed
21
23
Existed
Harness connector
Harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M7
22
M6
9
Existed
23
8
Existed
Harness connector
ABS actuator and electric unit (control unit)
harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
E106
9
E41
35
Existed
8
14
Existed
LAN-188
< COMPONENT DIAGNOSIS >
[CAN SYSTEM (TYPE 8)]
MAIN LINE BETWEEN ADP AND ABS CIRCUIT
NO
>> Repair the main line between the harness connector E106 and the ABS actuator and electric unit
(control unit).
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