Nissan X-Trail 32. Instruction — part 1516
LAN-104
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
CAN COMMUNICATION CIRCUIT 2
CAN COMMUNICATION CIRCUIT 2
Diagnosis Procedure
INFOID:0000000010715340
1.
CONNECTOR INSPECTION
1.
Turn the ignition switch OFF.
2.
Disconnect the battery cable from the negative terminal.
3.
Check the terminals and connectors of the BCM 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 CONTINUITY (OPEN CIRCUIT)
1.
Disconnect the connector of BCM.
2.
Check the continuity between the BCM harness connector terminals.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check the harness and repair or replace the root cause.
3.
CHECK HARNESS CONTINUITY (SHORT CIRCUIT)
1.
Disconnect all the unit connectors on CAN communication circuit 2.
2.
Check the continuity between the BCM harness connector terminals.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Check the harness and repair or replace the root cause.
4.
CHECK HARNESS CONTINUITY (SHORT CIRCUIT)
Check the continuity between the BCM and the ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Check the harness and repair or replace (if shield line is short) the root cause.
5.
CHECK BCM TERMINATION CIRCUIT
1.
Remove the BCM.
2.
Check the resistance between the BCM terminals.
BCM harness connector
Continuity
Connector No.
Terminal No.
B87
46
48
Existed
45
49
Existed
BCM harness connector
Continuity
Connector No.
Terminal No.
B87
46
45
Not existed
BCM harness connector
Ground
Continuity
Connector No.
Terminal No.
B87
46
Not existed
45
Not existed
BCM
Resistance (
Ω
)
Terminal No.
LAN
CAN COMMUNICATION CIRCUIT 2
LAN-105
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
Is the measurement value within the specification?
YES
>> GO TO 6.
NO
>> Replace the chassis control module.
6.
CHECK SYMPTOM
Connect all the connectors. Check if the symptoms described in the “Symptom (Results from interview with
customer)” are reproduced.
Inspection result
Reproduced>>GO TO 7.
Non-reproduced>>Start the diagnosis again. Follow the trouble diagnosis procedure when past error is
detected.
7.
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 circuit 2.
NOTE:
BCM has two termination circuits. 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.
46
45
Approx. 108 – 132
48
49
Approx. 108 – 132
LAN-106
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
CHASSIS COMMUNICATION CIRCUIT
CHASSIS COMMUNICATION CIRCUIT
Diagnosis Procedure
INFOID:0000000011009333
1.
CHECK CAN DIAGNOSIS
Check the CAN diagnosis results from CONSULT to see that the CAN communication circuit 1 and CAN com-
munication circuit 2 have no malfunction.
Are the CAN communication 1 and CAN communication 2 circuits normal?
YES
>> GO TO 2.
NO
>> Check and repair CAN communication circuit 1 and/or CAN communication circuit 2.
2.
CONNECTOR INSPECTION
1.
Turn the ignition switch OFF.
2.
Disconnect the battery cable from the negative terminal.
3.
Check the terminals and connectors of the chassis control module for damage, bend and loose connec-
tion (unit side and connector side).
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the terminal and connector.
3.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1.
Disconnect the connector of chassis control module.
2.
Check the continuity between the chassis control module harness connector terminals.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Check the harness and repair or replace the root cause.
4.
CHECK HARNESS CONTINUITY (SHORT CIRCUIT)
1.
Disconnect all the unit connectors on chassis communication circuit.
2.
Check the continuity between the chassis control module harness connector terminals.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Check the harness and repair or replace the root cause.
5.
CHECK HARNESS CONTINUITY (SHORT CIRCUIT)
Check the continuity between the chassis control module and the ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Check the harness and repair or replace (if shield line is short) the root cause.
Chassis control module harness connector
Continuity
Connector No.
Terminal No.
M73
11
19
Existed
8
7
Existed
Chassis control module harness connector
Continuity
Connector No.
Terminal No.
M73
11
8
Not existed
Chassis control module harness connector
Ground
Continuity
Connector No.
Terminal No.
M73
11
Not existed
8
Not existed
LAN
CHASSIS COMMUNICATION CIRCUIT
LAN-107
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
6.
CHECK CHASSIS CONTROL MODULE TERMINATION CIRCUIT
1.
Remove the chassis control module.
2.
Check the resistance between the chassis control module terminals.
Is the measurement value within the specification?
YES
>> GO TO 7.
NO
>> Replace the chassis control module.
7.
CHECK SYMPTOM
Connect all the connectors. Check if the symptoms described in the “Symptom (Results from interview with
customer)” are reproduced.
Inspection result
Reproduced>>GO TO 8.
Non-reproduced>>Start the diagnosis again. Follow the trouble diagnosis procedure when past error is
detected.
8.
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 chassis communication circuit.
NOTE:
Chassis control module has two termination circuits. 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.
Chassis control module
Resistance (
Ω
)
Terminal No.
11
8
Approx. 108 – 132
19
7
Approx. 108 – 132
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