Murano Cross Cabriolet Z51 (2012 year). Manual — part 48
DIAGNOSIS SYSTEM (BCM)
INL-15
< SYSTEM DESCRIPTION >
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ACTIVE TEST
*: Each lamp switch is in ON position.
RKE-LOCK
[On/Off]
Lock signal status received from remote keyless entry receiver
RKE-UNLOCK
[On/Off]
Unlock signal status received from remote keyless entry receiver
Monitor item
[Unit]
Description
Test item
Operation
Description
BATTERY SAVER
Off
Cuts the interior room lamp power supply to turn interior room lamp OFF.
On
Outputs the interior room lamp power supply to turn interior room lamp ON.*
Revision: 2013 February
2012 Murano CrossCabriolet
INL-16
< ECU DIAGNOSIS INFORMATION >
BCM
ECU DIAGNOSIS INFORMATION
BCM
List of ECU Reference
INFOID:0000000007566454
ECU
Reference
BCM
BCS-53, "DTC Inspection Priority Chart"
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INTERIOR ROOM LAMP CONTROL SYSTEM
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< WIRING DIAGRAM >
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WIRING DIAGRAM
INTERIOR ROOM LAMP CONTROL SYSTEM
Wiring Diagram
INFOID:0000000007566455
For connector terminal arrangements, harness layouts, and alphabets in a
(option abbreviation; if not
described in wiring diagram), refer to
GI-12, "Connector Information"
JRLWC1212GB
Revision: 2013 February
2012 Murano CrossCabriolet
INL-18
< WIRING DIAGRAM >
INTERIOR ROOM LAMP CONTROL SYSTEM
JRLWC1213GB
Revision: 2013 February
2012 Murano CrossCabriolet
ILLUMINATION
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< WIRING DIAGRAM >
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ILLUMINATION
Wiring Diagram
INFOID:0000000007566456
For connector terminal arrangements, harness layouts, and alphabets in a
(option abbreviation; if not
described in wiring diagram), refer to
GI-12, "Connector Information"
JCLWA5318GB
Revision: 2013 February
2012 Murano CrossCabriolet
INL-20
< WIRING DIAGRAM >
ILLUMINATION
JCLWA5319GB
Revision: 2013 February
2012 Murano CrossCabriolet
ILLUMINATION
INL-21
< WIRING DIAGRAM >
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JCLWA5320GB
Revision: 2013 February
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INL-22
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORKFLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
INFOID:0000000007797880
OVERALL SEQUENCE
DETAILED FLOW
JMIIA2097GB
Revision: 2013 February
2012 Murano CrossCabriolet
DIAGNOSIS AND REPAIR WORKFLOW
INL-23
< BASIC INSPECTION >
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1.
GET INFORMATION FOR SYMPTOM
1.
Get detailed information from the customer about the symptom (the condition and the environment when
the incident/malfunction occurs).
2.
Check operation condition of the function that is malfunctioning.
>> GO TO 2.
2.
CHECK DTC
1.
Check DTC.
2.
Perform the following procedure if DTC is detected.
-
Record DTC and freeze frame data (Print them out using CONSULT.)
-
Erase DTC.
-
Study the relationship between the cause detected by DTC and the symptom described by the customer.
3.
Check related service bulletins for information.
Are any symptoms described and any DTC detected?
Symptom is described, DTC is detected>>GO TO 3.
Symptom is described, DTC is not detected>>GO TO 4.
Symptom is not described, DTC is detected>>GO TO 7.
3.
CONFIRM THE SYMPTOM
Try to confirm the symptom described by the customer.
Also study the normal operation and fail-safe related to the symptom.
Verify relation between the symptom and the condition when the symptom is detected.
>> GO TO 7.
4.
CONFIRM THE SYMPTOM
Try to confirm the symptom described by the customer.
Also study the normal operation and fail-safe related to the symptom.
Verify relation between the symptom and the condition when the symptom is detected.
>> GO TO 5.
5.
SELF-DIAGNOSIS WITH ON BOARD DIAGNOSIS SYSTEM
Perform the self-diagnosis with on board diagnosis. Check that whether malfunction result is detected or not.
Is malfunction result detected?
YES
>> GO TO 6.
NO
>> GO TO 8.
6.
TROUBLE DIAGNOSIS BY MALFUNCTION
Perform the trouble diagnosis for the detected malfunction result. Specify the malfunctioning part.
>> GO TO 9.
7.
PERFORM DTC CONFIRMATION PROCEDURE
Perform DTC CONFIRMATION PROCEDURE for the detected DTC, and then check that DTC is detected
again. At this time, always connect CONSULT to the vehicle, and check self diagnostic results in real time.
If two or more DTCs are detected, refer to DTC INSPECTION PRIORITY CHART, and determine trouble diag-
nosis order.
NOTE:
• Freeze frame data is useful if the DTC is not detected.
• Perform Component Function Check if DTC CONFIRMATION PROCEDURE is not included on Service
Manual. This simplified check procedure is an effective alternative though DTC cannot be detected during
this check.
If the result of Component Function Check is NG, it is the same as the detection of DTC by DTC CONFIR-
MATION PROCEDURE.
Is DTC detected?
Revision: 2013 February
2012 Murano CrossCabriolet
INL-24
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORKFLOW
YES
>> GO TO 9.
NO
>> Check according to
GI-40, "Intermittent Incident"
.
8.
DETECT MALFUNCTIONING SYSTEM BY SYMPTOM DIAGNOSIS
Detect malfunctioning system according to SYMPTOM DIAGNOSIS based on the confirmed symptom in step
4, and determine the trouble diagnosis order based on possible causes and symptom.
Is the symptom described?
YES
>> GO TO 9.
NO
>> Monitor input data from related sensors or check voltage of related module terminals using CON-
SULT.
9.
DETECT MALFUNCTIONING PART BY DIAGNOSIS PROCEDURE
Inspect according to Diagnosis Procedure of the system.
Is malfunctioning part detected?
YES
>> GO TO 10.
NO
>> Check according to
GI-40, "Intermittent Incident"
.
10.
REPAIR OR REPLACE THE MALFUNCTIONING PART
1.
Repair or replace the malfunctioning part.
2.
Reconnect parts or connectors disconnected during Diagnosis Procedure again after repair and replace-
ment.
3.
Check DTC. If DTC is detected, erase it.
>> GO TO 11.
11.
FINAL CHECK
When DTC is detected in step 2, perform DTC CONFIRMATION PROCEDURE again, and then check that the
malfunction is repaired securely.
When symptom is described by the customer, refer to confirmed symptom in step 3 or 4, and check that the
symptom is not detected.
Is DTC detected and does symptom remain?
YES-1 >> DTC is detected: GO TO 9.
YES-2 >> Symptom remains: GO TO 4.
NO
>> Before returning the vehicle to the customer, always erase DTC.
Revision: 2013 February
2012 Murano CrossCabriolet
INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT
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< DTC/CIRCUIT DIAGNOSIS >
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DTC/CIRCUIT DIAGNOSIS
INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT
Component Function Check
INFOID:0000000007566458
1.
CHECK INTERIOR ROOM LAMP POWER SUPPLY FUNCTION
CONSULT ACTIVE TEST
1.
Turn the ignition switch ON.
2.
Turn each interior room lamp ON.
-
Map lamp
-
Step lamp
-
Vanity mirror lamp
-
Trunk room lamp
3.
Select "BATTERY SAVER" of BCM (BATTERY SAVER) active test item.
4.
With operating the test items, check that each interior room lamp turns ON/OFF.
Does the interior room lamp turn ON/OFF?
YES
>> Interior room lamp power supply circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000007566459
1.
CHECK INTERIOR ROOM LAMP POWER SUPPLY OUTPUT
CONSULT ACTIVE TEST
1.
Turn the ignition switch ON.
2.
Select “BATTERY SAVER” of BCM (BATTERY SAVER) active test item.
3.
With operating the test item, check voltage between BCM harness connector and the ground.
Is the measurement value normal?
YES
>> GO TO 2.
NO
>> Replace BCM.
2.
CHECK INTERIOR ROOM LAMP POWER SUPPLY OPEN CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect the following connectors.
-
Map lamp
-
Vanity mirror lamp (driver side)
-
Vanity mirror lamp (passenger side)
-
Trunk room lamp
-
Step lamp (driver side)
-
Step lamp (passenger side)
3.
Check continuity between BCM harness connector and each interior room lamp harness connector.
Off
: Interior room lamp OFF
On
: Interior room lamp ON
Terminals
Test item
Voltage (Approx.)
(+)
(–)
BCM
Ground
BATTERY SAVER
Connector
Terminal
M119
4
Off
0 V
On
Battery voltage
Revision: 2013 February
2012 Murano CrossCabriolet
INL-26
< DTC/CIRCUIT DIAGNOSIS >
INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT
Does continuity exist?
YES
>> GO TO 3.
NO
>> Repair the harnesses or connectors.
3.
CHECK INTERIOR ROOM LAMP POWER SUPPLY SHORT CIRCUIT
Check continuity between BCM harness connector and the ground.
Does continuity exist?
YES
>> Repair the harnesses or connectors.
NO
>> Check that each interior room lamp has no internal short circuit.
BCM
Each interior room lamp
Continuity
Connector
Terminal
Connector
Terminal
M119
4
Map lamp
R19
1
Existed
Vanity mirror lamp
(driver side)
R24
2
Vanity mirror lamp
(passenger side)
R10
2
Trunk room lamp
B84
2
Step lamp
(driver side)
D17
1
Step lamp
(passenger side)
D51
1
BCM
Ground
Continuity
Connector
Terminal
M119
4
Not existed
Revision: 2013 February
2012 Murano CrossCabriolet
INTERIOR ROOM LAMP CONTROL CIRCUIT
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< DTC/CIRCUIT DIAGNOSIS >
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INTERIOR ROOM LAMP CONTROL CIRCUIT
Component Function Check
INFOID:0000000007566460
CAUTION:
Before performing the diagnosis, check that the following is normal.
• Interior room lamp power supply
• Map lamp bulb
1.
CHECK INTERIOR ROOM LAMP CONTROL FUNCTION
CONSULT ACTIVE TEST
1.
Switch the map lamp switch to DOOR.
2.
Turn the ignition switch ON.
3.
Select “INT LAMP” of BCM (INT LAMP) active test item.
4.
With operating the test items, check that each interior room lamp turns ON/OFF (gradual brightening/dim-
ming).
Does the interior room lamp turns ON/OFF (gradual brightening/dimming)?
YES
>> Interior room lamp control circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000007566461
1.
CHECK INTERIOR ROOM LAMP CONTROL OUTPUT
CONSULT ACTIVE TEST
1.
Turn ignition switch OFF.
2.
Remove all the bulbs of map lamp.
3.
Select “INT LAMP” of BCM (INT LAMP) active test item.
4.
With operating the test item, check continuity between BCM harness connector and ground.
Is the measurement value normal?
YES
>> GO TO 2.
Fixed ON>>GO TO 3.
Fixed OFF>>Replace BCM.
2.
CHECK INTERIOR ROOM LAMP CONTROL OPEN CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BCM connector and map lamp connector.
3.
Check continuity between BCM harness connector and map lamp harness connector.
Does continuity exist?
YES
>> Replace the map lamp.
NO
>> Repair the harnesses or connectors.
3.
CHECK INTERIOR ROOM LAMP CONTROL SHORT CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BCM connector and map lamp connector.
On
: Interior room lamp gradual brightening
Off
: Interior room lamp gradual dimming
BCM
Ground
Test item
Continuity
Connector
Terminal
INT LAMP
M119
19
On
Existed
Off
Not existed
BCM
Map lamp
Continuity
Connector
Terminal
Connector
Terminal
M119
19
R19
2
Existed
Revision: 2013 February
2012 Murano CrossCabriolet
INL-28
< DTC/CIRCUIT DIAGNOSIS >
INTERIOR ROOM LAMP CONTROL CIRCUIT
3.
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES
>> Repair the harnesses or connectors.
NO
>> Replace BCM.Refer to
BCS-76, "Removal and Installation"
.
BCM
Ground
Continuity
Connector
Terminal
M119
19
Not existed
Revision: 2013 February
2012 Murano CrossCabriolet
TRUNK ROOM LAMP CIRCUIT
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< DTC/CIRCUIT DIAGNOSIS >
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TRUNK ROOM LAMP CIRCUIT
Diagnosis Procedure
INFOID:0000000007566462
CAUTION:
Before performing the diagnosis, check that the following is normal.
• Interior room lamp power supply
• Trunk room lamp bulb
1.
CHECK TRUNK ROOM LAMP OUTPUT
1.
Turn ignition switch OFF.
2.
Remove the trunk room lamp bulb.
3.
Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
Fixed ON>>GO TO 3.
Fixed OFF>>Replace BCM. Refer to
BCS-76, "Removal and Installation"
.
2.
CHECK TRUNK ROOM LAMP OPEN CIRCUIT
1.
Disconnect BCM connector.
2.
Check continuity between BCM harness connector and trunk room lamp harness connector.
Is the inspection result normal?
YES
>> Replace trunk room lamp.
NO
>> Repair or replace harnesses.
3.
CHECK TRUNK ROOM LAMP SHORT CIRCUIT
1.
Disconnect BCM connector.
2.
Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-76, "Removal and Installation"
NO
>> Repair or replace harnesses.
BCM
Ground
Condition
Continuity
Connector
Terminal
M120
30
Trunk lid
Open
Existed
Closed
Not existed
BCM
Trunk room lamp
Continuity
Connector
Terminal
Connector
Terminal
M120
30
B84
2
Existed
BCM
Ground
Continuity
Connector
Terminal
M120
30
Not existed
Revision: 2013 February
2012 Murano CrossCabriolet
INL-30
< DTC/CIRCUIT DIAGNOSIS >
STEP LAMP CIRCUIT
STEP LAMP CIRCUIT
Component Function Check
INFOID:0000000007566463
CAUTION:
Before performing the diagnosis, check that the following is normal.
• Interior room lamp power supply
• Step lamp bulb
1.
CHECK STEP LAMP OPERATION
CONSULT ACTIVE TEST
1.
Turn the ignition switch ON.
2.
Select "STEP LAMP TEST" of BCM (INT LAMP) active test item.
3.
With operating the test items, check that step lamp turns ON/OFF.
Does the step lamp turn ON/OFF?
YES
>> Step lamp circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000007566464
1.
CHECK STEP LAMP OUTPUT
CONSULT ACTIVE TEST
1.
Turn the ignition switch OFF.
2.
Remove the step lamp bulbs (driver side and passenger side).
3.
Turn the ignition switch ON.
4.
Select “STEP LAMP TEST” of BCM (INT LAMP) active test item.
5.
With operating the test item, check continuity between BCM harness connector and the ground.
Is the measurement value normal?
YES
>> GO TO 2.
Fixed ON>>GO TO 3.
Fixed OFF>>Replace BCM.Refer to
BCS-76, "Removal and Installation"
.
2.
CHECK STEP LAMP OPEN CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect BCM connector, and step lamp connector.
3.
Check continuity between BCM harness connector and step lamp harness connector.
Does continuity exist?
YES
>> Replace step lamp.
NO
>> Repair harnesses or connectors.
3.
CHECK STEP LAMP SHORT CIRCUIT
1.
Turn the ignition switch OFF.
On
: Step lamp ON
Off
: Step lamp OFF
BCM
Ground
Test item
Continuity
Connector
Terminal
STEP LAMP TEST
M119
7
On
Existed
Off
Not existed
BCM
Step lamp
Continuity
Connector
Terminal
Connector
Terminal
M119
7
Driver side
D17
2
Existed
Passenger side
D51
2
Revision: 2013 February
2012 Murano CrossCabriolet
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