Murano Cross Cabriolet Z51 (2012 year). Manual — part 54
LAN
HVAC BRANCH LINE CIRCUIT
LAN-45
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
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HVAC BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000007566356
1.
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 A/C auto amp. 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 FOR OPEN CIRCUIT
1.
Disconnect the connector of A/C auto amp.
2.
Check the resistance between the A/C auto amp. harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 3.
NO
>> Repair the A/C auto amp. branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the A/C auto amp. Refer to
.
Is the inspection result normal?
YES (Present error)>>Replace the A/C auto amp. Refer to
HAC-78, "Removal and Installation"
.
YES (Past error)>>Error was detected in the A/C auto amp. branch line.
NO
>> Repair the power supply and the ground circuit.
A/C auto amp. harness connector
Resistance (
Ω
)
Connector No.
Terminal No.
M50
1
2
Approx. 54 – 66
Revision: 2013 February
2012 Murano CrossCabriolet
LAN-46
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
M&A BRANCH LINE CIRCUIT
M&A BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000007566357
1.
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 combination meter 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 FOR OPEN CIRCUIT
1.
Disconnect the connector of combination meter.
2.
Check the resistance between the combination meter harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 3.
NO
>> Repair the combination meter branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the combination meter. Refer to
Is the inspection result normal?
YES (Present error)>>Replace the combination meter. Refer to
MWI-70, "Removal and Installation"
YES (Past error)>>Error was detected in the combination meter branch line.
NO
>> Repair the power supply and the ground circuit.
Combination meter harness connector
Resistance (
Ω
)
Connector No.
Terminal No.
M34
21
22
Approx. 54 – 66
Revision: 2013 February
2012 Murano CrossCabriolet
LAN
A-BAG BRANCH LINE CIRCUIT
LAN-47
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
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A-BAG BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000007566358
WARNING:
Always observe the following items for preventing accidental activation.
• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait 3 minutes
or more. (To discharge backup capacitor.)
• Never use unspecified tester or other measuring device.
1.
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 air bag diagnosis sensor unit for damage, bend and loose con-
nection (unit side and connector side).
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the main harness.
2.
CHECK AIR BAG DIAGNOSIS SENSOR UNIT
Check the air bag diagnosis sensor unit. Refer to
Is the inspection result normal?
YES
>> Replace the main harness.
NO
>> Replace parts whose air bag system has a malfunction.
Revision: 2013 February
2012 Murano CrossCabriolet
LAN-48
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
BCM BRANCH LINE CIRCUIT
BCM BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000007566359
1.
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 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 FOR OPEN CIRCUIT
1.
Disconnect the connector of BCM.
2.
Check the resistance between the BCM harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 3.
NO
>> Repair the BCM branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the BCM. Refer to
Is the inspection result normal?
YES (Present error)>>Replace the BCM. Refer to
BCS-76, "Removal and Installation"
.
YES (Past error)>>Error was detected in the BCM branch line.
NO
>> Repair the power supply and the ground circuit.
BCM harness connector
Resistance (
Ω
)
Connector No.
Terminal No.
M122
91
90
Approx. 54 – 66
Revision: 2013 February
2012 Murano CrossCabriolet
LAN
DLC BRANCH LINE CIRCUIT
LAN-49
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
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DLC BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000007566360
1.
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 data link connector for damage, bend and loose connection
(connector side and harness side).
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the terminal and connector.
2.
CHECK HARNESS FOR OPEN CIRCUIT
Check the resistance between the data link connector terminals.
Is the measurement value within the specification?
YES (Present error)>>Diagnose again. Refer to
LAN-15, "Trouble Diagnosis Flow Chart"
.
YES (Past error)>>Error was detected in the data link connector branch line circuit.
NO
>> Repair the data link connector branch line.
Data link connector
Resistance (
Ω
)
Connector No.
Terminal No.
M4
6
14
Approx. 54 – 66
Revision: 2013 February
2012 Murano CrossCabriolet
LAN-50
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
STRG BRANCH LINE CIRCUIT
STRG BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000007566361
1.
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 steering angle sensor 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 FOR OPEN CIRCUIT
1.
Disconnect the connector of steering angle sensor.
2.
Check the resistance between the steering angle sensor harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 3.
NO
>> Repair the steering angle sensor branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the steering angle sensor. Refer to
Is the inspection result normal?
YES (Present error)>>Replace the steering angle sensor. Refer to
BRC-105, "Removal and Installation"
.
YES (Past error)>>Error was detected in the steering angle sensor branch line.
NO
>> Repair the power supply and the ground circuit.
Steering angle sensor harness connector
Resistance (
Ω
)
Connector No.
Terminal No.
M30
5
2
Approx. 54 – 66
Revision: 2013 February
2012 Murano CrossCabriolet
LAN
ABS BRANCH LINE CIRCUIT
LAN-51
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
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ABS BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000007566362
1.
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 ABS actuator and electric unit (control unit) 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 FOR OPEN CIRCUIT
1.
Disconnect the connector of ABS actuator and electric unit (control unit).
2.
Check the resistance between the ABS actuator and electric unit (control unit) harness connector termi-
nals.
Is the measurement value within the specification?
YES
>> GO TO 3.
NO
>> Repair the ABS actuator and electric unit (control unit) branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the ABS actuator and electric unit (control unit). Refer to
Is the inspection result normal?
YES (Present error)>>Replace the ABS actuator and electric unit (control unit). Refer to
.
YES (Past error)>>Error was detected in the ABS actuator and electric unit (control unit) branch line.
NO
>> Repair the power supply and the ground circuit.
ABS actuator and electric unit (control unit) harness connector
Resistance (
Ω
)
Connector No.
Terminal No.
E36
23
21
Approx. 54 – 66
Revision: 2013 February
2012 Murano CrossCabriolet
LAN-52
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
TCM BRANCH LINE CIRCUIT
TCM BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000007566363
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).
-
TCM
-
Harness connector F123
-
Harness connector E6
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the terminal and connector.
2.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Disconnect the connector of TCM.
2.
Check the resistance between the TCM harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 3.
NO
>> Repair the TCM branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the TCM. Refer to
Is the inspection result normal?
YES (Present error)>>Replace the TCM. Refer to
TM-141, "Removal and Installation"
YES (Past error)>>Error was detected in the TCM branch line.
NO
>> Repair the power supply and the ground circuit.
TCM harness connector
Resistance (
Ω
)
Connector No.
Terminal No.
F23
32
31
Approx. 54 – 66
Revision: 2013 February
2012 Murano CrossCabriolet
LAN
IPDM-E BRANCH LINE CIRCUIT
LAN-53
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
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IPDM-E BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000007566364
1.
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 IPDM E/R 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 FOR OPEN CIRCUIT
1.
Disconnect the connector of IPDM E/R.
2.
Check the resistance between the IPDM E/R harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 3.
NO
>> Repair the IPDM E/R branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the IPDM E/R. Refer to
Is the inspection result normal?
YES (Present error)>>Replace the IPDM E/R. Refer to
PCS-31, "Removal and Installation"
YES (Past error)>>Error was detected in the IPDM E/R branch line.
NO
>> Repair the power supply and the ground circuit.
IPDM E/R harness connector
Resistance (
Ω
)
Connector No.
Terminal No.
E11
40
39
Approx. 108 – 132
Revision: 2013 February
2012 Murano CrossCabriolet
LAN-54
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
CAN COMMUNICATION CIRCUIT
CAN COMMUNICATION CIRCUIT
Diagnosis Procedure
INFOID:0000000007566365
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 system.
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 IPDM E/R TERMINATION CIRCUIT
1.
Remove the ECM and the IPDM E/R.
2.
Check the resistance between the ECM terminals.
3.
Check the resistance between the IPDM E/R terminals.
Is the measurement value within the specification?
YES
>> GO TO 5.
NO
>> Replace the ECM and/or the IPDM E/R.
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.
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.
98
97
Approx. 108 – 132
IPDM E/R
Resistance (
Ω
)
Terminal No.
40
39
Approx. 108 – 132
Revision: 2013 February
2012 Murano CrossCabriolet
LAN
CAN COMMUNICATION CIRCUIT
LAN-55
< DTC/CIRCUIT DIAGNOSIS >
[CAN]
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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 control 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.
Revision: 2013 February
2012 Murano CrossCabriolet
LAN-56
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 1)]
MAIN LINE BETWEEN ADP AND C/ROOF CIRCUIT
DTC/CIRCUIT DIAGNOSIS
MAIN LINE BETWEEN ADP AND C/ROOF CIRCUIT
Diagnosis Procedure
INFOID:0000000007566366
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
-
Harness connectors B460 and B19
-
Harness connectors B77 and B318
4.
Check the continuity between the harness connectors.
Is the inspection result normal?
YES (Present error)>>Connect all the connectors and diagnose again. Refer to
YES (Past error)>>Error was detected in the main line between the driver seat control unit and the soft top
control unit.
NO
>> Repair the main line between the harness connectors B19 and B77.
Harness connector
Harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
B19
2
B77
31
Existed
9
32
Existed
Revision: 2013 February
2012 Murano CrossCabriolet
LAN
MAIN LINE BETWEEN C/ROOF AND M&A CIRCUIT
LAN-57
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 1)]
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MAIN LINE BETWEEN C/ROOF AND M&A CIRCUIT
Diagnosis Procedure
INFOID:0000000007566367
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 B11
-
Harness connector M77
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the terminal and connector.
2.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1.
Disconnect the following harness connectors.
-
Harness connectors B318 and B77
-
Harness connectors B11 and M77
2.
Check the continuity between the harness connectors.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair the main line between the harness connectors B77 and B11.
3.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1.
Disconnect the connector of combination meter.
2.
Check the continuity between the harness connector and the combination meter harness connector.
Is the inspection result normal?
YES (Present error)>>Connect all the connectors and diagnose again. Refer to
YES (Past error)>>Error was detected in the main line between the soft top control unit and the combination
meter.
NO
>> Repair the main line between the harness connector M77 and the combination meter.
Harness connector
Harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
B77
31
B11
57
Existed
32
56
Existed
Harness connector
Combination meter harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M77
57
M34
21
Existed
56
22
Existed
Revision: 2013 February
2012 Murano CrossCabriolet
LAN-58
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 1)]
MAIN LINE BETWEEN M&A AND DLC CIRCUIT
MAIN LINE BETWEEN M&A AND DLC CIRCUIT
Diagnosis Procedure
INFOID:0000000007566368
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
-
Combination meter
4.
Check the continuity between the combination meter harness connector and the data link connector.
Is the inspection result normal?
YES (Present error)>>Connect all the connectors and diagnose again. Refer to
YES (Past error)>>Error was detected in the main line between the combination meter and the data link con-
nector.
NO
>> Repair the main line between the combination meter and the data link connector.
Combination meter harness connector
Data link connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M34
21
M4
6
Existed
22
14
Existed
Revision: 2013 February
2012 Murano CrossCabriolet
LAN
MAIN LINE BETWEEN DLC AND TCM CIRCUIT
LAN-59
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 1)]
C
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MAIN LINE BETWEEN DLC AND TCM CIRCUIT
Diagnosis Procedure
INFOID:0000000007566369
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 M11
-
Harness connector E105
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 M11 and E105.
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 M11.
3.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1.
Disconnect the harness connectors E6 and F123.
2.
Check the continuity between the harness connectors.
Is the inspection result normal?
YES (Present error)>>Connect all the connectors and diagnose again. Refer to
YES (Past error)>>Error was detected in the main line between the data link connector and the TCM.
NO
>> Repair the main line between the harness connectors E105 and E6.
Data link connector
Harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
M4
6
M11
12
Existed
14
11
Existed
Harness connector
Harness connector
Continuity
Connector No.
Terminal No.
Connector No.
Terminal No.
E105
12
E6
1
Existed
11
8
Existed
Revision: 2013 February
2012 Murano CrossCabriolet
LAN-60
< DTC/CIRCUIT DIAGNOSIS >
[CAN SYSTEM (TYPE 1)]
ECM BRANCH LINE CIRCUIT
ECM BRANCH LINE CIRCUIT
Diagnosis Procedure
INFOID:0000000007566370
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).
-
ECM
-
Harness connector E104
-
Harness connector B4
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair the terminal and connector.
2.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Disconnect the connector of ECM.
2.
Check the resistance between the ECM harness connector terminals.
Is the measurement value within the specification?
YES
>> GO TO 3.
NO
>> Repair the ECM branch line.
3.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the ECM. Refer to
Is the inspection result normal?
YES (Present error)>>Replace the ECM. Refer to
EC-445, "Removal and Installation"
YES (Past error)>>Error was detected in the ECM branch line.
NO
>> Repair the power supply and the ground circuit.
ECM harness connector
Resistance (
Ω
)
Connector No.
Terminal No.
E16
98
97
Approx. 108 – 132
Revision: 2013 February
2012 Murano CrossCabriolet
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