Infiniti G37 Coupe. Manual — part 864
LAN
CAN COMMUNICATION CIRCUIT
LAN-129
< COMPONENT DIAGNOSIS >
[CAN SYSTEM (TYPE 4)]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
Inspection result
Reproduced>>GO TO 6.
Non-reproduced>>Start the diagnosis again. Follow the trouble diagnosis procedure when past error is
detected.
6.
CHECK UNIT REPRODUCTION
Perform the reproduction test as per the following procedure for each unit.
1.
Turn the ignition switch OFF.
2.
Disconnect the battery cable from the negative terminal.
3.
Disconnect one of the unit connectors of CAN communication system.
NOTE:
ECM and IPDM E/R have a termination circuit. Check other units first.
4.
Connect the battery cable to the negative terminal. Check if the symptoms described in the “Symptom
(Results from interview with customer)” are reproduced.
NOTE:
Although unit-related error symptoms occur, do not confuse them with other symptoms.
Inspection result
Reproduced>>Connect the connector. Check other units as per the above procedure.
Non-reproduced>>Replace the unit whose connector was disconnected.
LAN-130
< COMPONENT DIAGNOSIS >
[CAN SYSTEM (TYPE 5)]
MAIN LINE BETWEEN BCM AND DLC CIRCUIT
COMPONENT DIAGNOSIS
MAIN LINE BETWEEN BCM AND DLC CIRCUIT
Diagnosis Procedure
INFOID:0000000001679496
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
MAIN LINE BETWEEN DLC AND ADP CIRCUIT
LAN-131
< COMPONENT DIAGNOSIS >
[CAN SYSTEM (TYPE 5)]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
MAIN LINE BETWEEN DLC AND ADP CIRCUIT
Diagnosis Procedure
INFOID:0000000001679498
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-132
< COMPONENT DIAGNOSIS >
[CAN SYSTEM (TYPE 5)]
MAIN LINE BETWEEN ADP AND ABS CIRCUIT
MAIN LINE BETWEEN ADP AND ABS CIRCUIT
Diagnosis Procedure
INFOID:0000000001679500
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
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст