Nissan Pathfinder. Manual — part 783
LAN
CGW BRANCH LINE CIRCUIT (CAN COMMUNICATION CIRCUIT 1)
LAN-85
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
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CGW BRANCH LINE CIRCUIT (CAN COMMUNICATION CIRCUIT 1)
Diagnosis Procedure
INFOID:0000000009174976
1.
CHECK DTC
Check DTC of the CAN gateway with CONSULT.
Is U1010 or B2600 indicated?
YES
>> Perform a diagnosis of the indicated DTC.
NO
>> GO TO 2.
2.
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 CAN gateway for damage, bend and loose connection (unit
side and connector side).
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the terminal and connector.
3.
CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of CAN gateway.
2. Check the resistance between the CAN gateway harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 4.
NO
>> Repair the CAN gateway branch line (CAN communication circuit 1 side).
4.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the CAN gateway. Refer to
.
Is the inspection result normal?
YES (Present error)>>Replace the CAN gateway. Refer to
LAN-109, "Removal and Installation"
.
YES (Past error)>>Error was detected in the CAN gateway branch line (CAN communication circuit 1 side).
NO
>> Repair the power supply and the ground circuit.
CAN gateway harness connector
Resistance (
Ω)
Connector No.
Terminal No.
M5
1
7
Approx. 54 – 66
LAN-86
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
CGW BRANCH LINE CIRCUIT (CAN COMMUNICATION CIRCUIT 2)
CGW BRANCH LINE CIRCUIT (CAN COMMUNICATION CIRCUIT 2)
Diagnosis Procedure
INFOID:0000000009174977
1.
CHECK DTC
Check DTC of the CAN gateway with CONSULT.
Is U1010 or B2600 indicated?
YES
>> Perform a diagnosis of the indicated DTC.
NO
>> GO TO 2.
2.
CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors of the CAN gateway 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 CAN gateway.
2. Check the continuity between the CAN gateway harness connector terminals.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair the CAN gateway branch line (CAN communication circuit 2 side).
4.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the CAN gateway. Refer to
.
Is the inspection result normal?
YES (Present error)>>Replace the CAN gateway. Refer to
LAN-109, "Removal and Installation"
.
YES (Past error)>>Error was detected in the CAN gateway branch line (CAN communication circuit 2 side).
NO
>> Repair the power supply and the ground circuit.
CAN gateway harness connector
Continuity
Connector No.
Terminal No.
M5
4
6
Existed
10
12
Existed
LAN
AVM BRANCH LINE CIRCUIT
LAN-87
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
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AVM BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000009174978
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).
-
Around view monitor control unit
-
CAN gateway
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 CAN gateway.
2. Check the continuity between the CAN gateway 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).
3.
CHECK HARNESS FOR OPEN CIRCUIT
1. Connect the connector of CAN gateway.
2. Disconnect the connector of around view monitor control unit.
3. Check the resistance between the around view monitor control unit harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 4.
NO
>> Replace the main harness.
4.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the around view monitor control unit. Refer to
"AROUND VIEW MONITOR CONTROL UNIT : Diagnosis Procedure"
.
Is the inspection result normal?
YES (Present error)>>Replace the around view monitor control unit. Refer to
AV-629, "Removal and Installa-
.
YES (Past error)>>Error was detected in the around view monitor control unit branch line.
NO
>> Repair the power supply and the ground circuit.
CAN gateway harness connector
Continuity
Connector No.
Terminal No.
M5
4
6
Existed
10
12
Existed
Around view monitor control unit harness connector
Resistance (
Ω)
Connector No.
Terminal No.
M96
12
10
Approx. 54 – 66
LAN-88
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
CAN COMMUNICATION CIRCUIT
CAN COMMUNICATION CIRCUIT
Diagnosis Procedure
INFOID:0000000009174979
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.
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.
3. Check the resistance between the BCM terminals.
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.
Data link connector
Continuity
Connector No.
Terminal No.
M22
6
14
Not existed
Data link connector
Ground
Continuity
Connector No.
Terminal No.
M22
6
Not existed
14
Not existed
ECM
Resistance (
Ω)
Terminal No.
114
113
Approx. 108 – 132
BCM
Resistance (
Ω)
Terminal No.
60
59
Approx. 108 – 132
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