Nissan X-Trail 32. Instruction — part 1515
LAN-100
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
ICC BRANCH LINE CIRCUIT (CHASSIS COMMUNICATION CIRCUIT)
ICC BRANCH LINE CIRCUIT (CHASSIS COMMUNICATION CIRCUIT)
Diagnosis Procedure
INFOID:0000000011009331
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 (unit side and con-
nector side).
-
Distance sensor
-
Harness connector M77
-
Harness connector e105
-
Chassis control module
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 chassis control module.
2.
Check the continuity between the chassis control module harness connector terminals.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check the harness and repair the root cause (chassis communication circuit side). Refer to
.
3.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Connect the connector of chassis control module.
2.
Disconnect the connector of distance sensor.
3.
Check the resistance between the distance sensor harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 4.
NO
>> Repair the distance sensor branch line.
4.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the distance sensor. Refer to
.
Is the inspection result normal?
YES (Present error)>>Replace the distance sensor. Refer to
BRC-304, "Removal and Installation"
.
YES (Past error)>>Error was detected in the distance sensor branch line.
NO
>> Repair the power supply and the ground circuit.
Chassis control module harness connector
Continuity
Connector No.
Terminal No.
M73
11
19
Existed
8
7
Existed
Distance sensor harness connector
Resistance (
Ω
)
Connector No.
Terminal No.
E78
5
6
Approx. 54 – 66
LAN
LANE BRANCH LINE CIRCUIT
LAN-101
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
LANE BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000011009332
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 (unit side and con-
nector side).
-
Front camera unit
-
Harness connector M23
-
Harness connector R1
-
BCM
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 the root cause (CAN communication circuit 2 side). Refer to
.
3.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Connect the connector of BCM.
2.
Disconnect the connector of front camera unit.
3.
Check the resistance between the front camera unit harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 4.
NO
>> Repair the front camera unit branch line.
4.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the front camera unit. Refer to
.
Is the inspection result normal?
YES (Present error)>>Replace the front camera unit. Refer to
DAS-149, "Removal and Installation"
.
YES (Past error)>>Error was detected in the front camera unit branch line.
NO
>> Repair the power supply and the ground circuit.
BCM harness connector
Continuity
Connector No.
Terminal No.
B87
46
48
Existed
45
49
Existed
Front camera unit harness connector
Resistance (
Ω
)
Connector No.
Terminal No.
R22
2
3
Approx. 54 – 66
LAN-102
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
CAN COMMUNICATION CIRCUIT 1
CAN COMMUNICATION CIRCUIT 1
Diagnosis Procedure
INFOID:0000000010715339
1.
CONNECTOR INSPECTION
1.
Turn the ignition switch OFF.
2.
Disconnect the battery cable from the negative terminal.
3.
Disconnect all the unit connectors on CAN communication circuit 1.
4.
Check terminals and connectors for damage, bend and loose connection.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the terminal and connector.
2.
CHECK HARNESS CONTINUITY (SHORT CIRCUIT)
Check the continuity between the data link connector terminals.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check the harness and repair the root cause.
3.
CHECK HARNESS CONTINUITY (SHORT CIRCUIT)
Check the continuity between the data link connector and the ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Check the harness and repair the root cause.
4.
CHECK ECM AND BCM TERMINATION CIRCUIT
1.
Remove the ECM and the BCM.
2.
Check the resistance between the ECM terminals.
-
Except for R9M engine models
-
R9M engine models
3.
Check the resistance between the BCM terminals.
Data link connector
Continuity
Connector No.
Terminal No.
M4
6
14
Not existed
Data link connector
Ground
Continuity
Connector No.
Terminal No.
M4
6
Not existed
14
Not existed
ECM
Resistance (
Ω
)
Terminal No.
100
99
Approx. 108 – 132
ECM
Resistance (
Ω
)
Terminal No.
32
31
Approx. 108 – 132
BCM
Resistance (
Ω
)
Terminal No.
20
40
Approx. 108 – 132
LAN
CAN COMMUNICATION CIRCUIT 1
LAN-103
< 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 5.
NO
>> Replace the ECM and/or the BCM.
5.
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 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 circuit 1.
NOTE:
ECM and BCM 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.
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