Murano Cross Cabriolet Z51 (2012 year). Manual - part 31

EXL-20

< SYSTEM DESCRIPTION >

[XENON TYPE]

DIAGNOSIS SYSTEM (IPDM E/R)

DIAGNOSIS SYSTEM (IPDM E/R)

Diagnosis Description

INFOID:0000000007818534

AUTO ACTIVE TEST

Description

In auto active test mode, the IPDM E/R sends a drive signal to the following systems to check their operation.
• Oil pressure warning lamp
• Front wiper (LO, HI)
• Parking lamp
• License plate lamp
• Side maker lamp
• Tail lamp
• Front fog lamp
• Headlamp (LO, HI)
• A/C compressor (magnet clutch)
• Cooling fan

Operation Procedure

NOTE:
Never perform auto active test in the following conditions.
• CONSULT is connected
• Passenger door is open

1.

Close the hood and lift the wiper arms from the windshield. (Prevent windshield damage due to wiper
operation)
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield beforehand.

2.

Turn the ignition switch OFF.

3.

Turn the ignition switch ON, and within 20 seconds, press the front door switch (driver side) 10 times.
Then turn the ignition switch OFF.

4.

Turn the ignition switch ON within 10 seconds. After that the horn sounds once and the auto active test
starts.

5.

After a series of the following operations is repeated 3 times, auto active test is completed.

NOTE:
• When auto active test has to be cancelled halfway through test, turn the ignition switch OFF.
• When auto active test is not activated, door switch may be the cause. Check door switch. Refer to 

DLK-55,

"Component Function Check"

.

Inspection in Auto Active Test Mode

When auto active test mode is actuated, the following 6 steps are repeated 3 times.

Operation 
sequence

Inspection location

Operation

1

Oil pressure warning lamp

Blinks continuously during operation of auto active test 

2

Front wiper motor

LO for 5 seconds 

→

 HI for 5 seconds

3

• Parking  lamp
• License plate lamp
• Side maker lamp
• Tail lamp
• Front fog lamp

10 seconds

4

Headlamp

LO 

⇔

 HI 5 times

5

A/C compressor (magnet clutch)

ON 

⇔

 OFF 5 times

6

Cooling fan

LO for 5 seconds 

→

 MID for 3 seconds 

→

 HI for 2 seconds

Revision: 2013 February

2012 Murano CrossCabriolet

DIAGNOSIS SYSTEM (IPDM E/R)

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< SYSTEM DESCRIPTION >

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Concept of auto active test

• IPDM E/R starts the auto active test with the door switch signals transmitted by BCM via CAN communica-

tion. Therefore, the CAN communication line between IPDM E/R and BCM is considered normal if the auto
active test starts successfully.

• The auto active test facilitates troubleshooting if any systems controlled by IPDM E/R cannot be operated.

Diagnosis chart in auto active test mode

JMMIA0836GB

Symptom

Inspection contents

Possible cause

Any of the following components do not operate

• Parking lamp
• License plate lamp
• Side maker lamp
• Tail  lamp
• Front  fog  lamp
• Headlamp (HI, LO)
• Front motor wiper

Perform auto active test.
Does the applicable system 
operate?

YES

BCM signal input circuit

NO

• Lamp or motor
• Lamp or motor ground circuit
• Harness or connector between 

IPDM E/R and applicable system

• IPDM E/R

A/C compressor does not operate

Perform auto active test.
Does the magnet clutch oper-
ate?

YES

• A/C amp. signal input circuit
• CAN communication signal between 

A/C amp. and ECM

• CAN communication signal between 

ECM and IPDM E/R

NO

• Magnet clutch
• Harness or connector between 

IPDM E/R and magnet clutch

• IPDM E/R

Oil pressure warning lamp does not operate

Perform auto active test.
Does the oil pressure warning 
lamp blink?

YES

• Harness or connector between 

IPDM E/R and oil pressure switch

• Oil pressure switch
• IPDM E/R

NO

• CAN communication signal between 

IPDM E/R and BCM

• CAN communication signal between 

BCM and combination meter

• Combination meter

Revision: 2013 February

2012 Murano CrossCabriolet

EXL-22

< SYSTEM DESCRIPTION >

[XENON TYPE]

DIAGNOSIS SYSTEM (IPDM E/R)

CONSULT Function (IPDM E/R)

INFOID:0000000007818535

APPLICATION ITEM

CONSULT performs the following functions via CAN communication with IPDM E/R.

SELF DIAGNOSTIC RESULT

Refer to 

PCS-23, "DTC Index"

.

DATA MONITOR

Monitor item

Cooling fan does not operate

Perform auto active test.
Does the cooling fan operate?

YES

• ECM signal input circuit
• CAN communication signal between 

ECM and IPDM E/R

NO

• Harness or connector between 

IPDM E/R and cooling fan motor

• Harness or connector between 

IPDM E/R and cooling fan relay

• Cooling fan motor
• Cooling fan relay
• IPDM  E/R

Symptom

Inspection contents

Possible cause

Diagnosis mode

Description

Ecu Identification

Allows confirmation of IPDM E/R part number.

Self Diagnostic Result

Displays the diagnosis results judged by IPDM E/R.

Data Monitor

Displays the real-time input/output data from IPDM E/R input/output data.

Active Test

IPDM E/R can provide a drive signal to electronic components to check their operations.

CAN Diag Support Monitor

The results of transmit/receive diagnosis of CAN communication can be read.

Monitor Item

[Unit]

MAIN SIG-

NALS

Description

MOTOR FAN REQ
[1/2/3/4]

×

Displays the value of the cooling fan speed request signal received from ECM via 
CAN communication.

AC COMP REQ
[Off/On]

×

Displays the status of the A/C compressor request signal received from ECM via 
CAN communication.

TAIL&CLR REQ
[Off/On]

×

Displays the status of the position light request signal received from BCM via CAN 
communication.

HL LO REQ
[Off/On]

×

Displays the status of the low beam request signal received from BCM via CAN 
communication.

HL HI REQ
[Off/On]

×

Displays the status of the high beam request signal received from BCM via CAN 
communication.

FR FOG REQ
[Off/On]

×

Displays the status of the front fog light request signal received from BCM via 
CAN communication.

FR WIP REQ
[Stop/1LOW/Low/Hi]

×

Displays the status of the front wiper request signal received from BCM via CAN 
communication.

WIP AUTO STOP
[STOP P/ACT P]

×

Displays the status of the front wiper auto stop signal judged by IPDM E/R.

WIP PROT
[Off/BLOCK]

×

Displays the status of the front wiper fail-safe operation judged by IPDM E/R.

IGN RLY1 -REQ
[Off/On]

Displays the status of the ignition switch ON signal received from BCM via CAN 
communication.

IGN RLY
[Off/On]

×

Displays the status of the ignition relay judged by IPDM E/R.

PUSH SW
[Off/On]

Displays the status of the push-button ignition switch judged by IPDM E/R.

Revision: 2013 February

2012 Murano CrossCabriolet

DIAGNOSIS SYSTEM (IPDM E/R)

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< SYSTEM DESCRIPTION >

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ACTIVE TEST

Test item

INTER/NP SW
[Off/On]

Displays the status of the shift position judged by IPDM E/R.

ST RLY CONT
[Off/On]

Displays the status of the starter relay status signal received from BCM via CAN 
communication.

IHBT RLY -REQ
[Off/On]

Displays the status of the starter control relay signal received from BCM via CAN 
communication.

ST/INHI RLY
[Off/ ST ON/INHI ON/UNKWN]

Displays the status of the starter relay and starter control relay judged by IPDM 
E/R.

DETENT SW
[Off/On]

Displays the status of the CVT shift selector (detention switch) judged by IPDM E/
R.

S/L RLY -REQ
[Off/On]

NOTE:
The item is indicated, but not monitored.

S/L STATE
[LOCK/UNLOCK/UNKWN]

NOTE:
The item is indicated, but not monitored.

DTRL REQ
[Off/On]

NOTE:
The item is indicated, but not monitored.

OIL P SW
[Open/Close]

Displays the status of the oil pressure switch judged by IPDM E/R.

HOOD SW
[Off/On]

NOTE:
The item is indicated, but not monitored.

HL WASHER REQ
[Off/On]

NOTE:
The item is indicated, but not monitored.

THFT HRN REQ
[Off/On]

Displays the status of the theft warning horn request signal received from BCM 
via CAN communication.

HORN CHIRP
[Off/On]

Displays the status of the horn reminder signal received from BCM via CAN com-
munication.

CRNRNG LMP REQ
[Off/On]

NOTE:
The item is indicated, but not monitored.

Monitor Item

[Unit]

MAIN SIG-

NALS

Description

Test item

Operation

Description

CORNERING LAMP

Off

NOTE:
The item is indicated, but cannot be tested.

LH

RH

HORN

On

Operates horn relay for 20 ms.

FRONT WIPER

Off

OFF

Lo

Operates the front wiper relay.

Hi

Operates the front wiper relay and front wiper high relay.

MOTOR FAN

1

OFF

2

Operates the cooling fan relay-1.

3

Operates the cooling fan relay-2.

4

Operates the cooling fan relay-2 and cooling fan relay-3.

HEAD LAMP WASHER

On

NOTE:
The item is indicated, but cannot be tested.

Revision: 2013 February

2012 Murano CrossCabriolet

EXL-24

< SYSTEM DESCRIPTION >

[XENON TYPE]

DIAGNOSIS SYSTEM (IPDM E/R)

EXTERNAL LAMPS

Off

OFF

TAIL

Operates the tail lamp relay.

Lo

Operates the headlamp low relay.

Hi

Operates the headlamp low relay and ON/OFF the headlamp high relay at 1 sec-
ond intervals.

Fog

Operates the front fog lamp relay.

Test item

Operation

Description

Revision: 2013 February

2012 Murano CrossCabriolet

BCM, IPDM E/R

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< ECU DIAGNOSIS INFORMATION >

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ECU DIAGNOSIS INFORMATION

BCM, IPDM E/R

List of ECU Reference

INFOID:0000000007565425

ECU

Reference

BCM

BCS-31, "Reference Value"

BCS-53, "Fail-safe"

BCS-53, "DTC Inspection Priority Chart"

BCS-54, "DTC Index"

IPDM E/R

PCS-15, "Reference Value"

PCS-21, "Fail-safe"

PCS-23, "DTC Index"

Revision: 2013 February

2012 Murano CrossCabriolet

EXL-26

< WIRING DIAGRAM >

[XENON TYPE]

HEADLAMP SYSTEM

WIRING DIAGRAM

HEADLAMP SYSTEM

Wiring Diagram 

INFOID:0000000007565426

For connector terminal arrangements, harness layouts, and alphabets in a 

 (option abbreviation; if not

described in wiring diagram), refer to 

GI-12, "Connector Information"

.

JCLWA5273GB

Revision: 2013 February

2012 Murano CrossCabriolet

AUTO LIGHT SYSTEM

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AUTO LIGHT SYSTEM

Wiring Diagram 

INFOID:0000000007565427

For connector terminal arrangements, harness layouts, and alphabets in a 

 (option abbreviation; if not

described in wiring diagram), refer to 

GI-12, "Connector Information"

.

JRLWC1210GB

Revision: 2013 February

2012 Murano CrossCabriolet

EXL-28

< WIRING DIAGRAM >

[XENON TYPE]

FRONT FOG LAMP SYSTEM

FRONT FOG LAMP SYSTEM

Wiring Diagram

INFOID:0000000007565428

For connector terminal arrangements, harness layouts, and alphabets in a 

 (option abbreviation; if not

described in wiring diagram), refer to 

GI-12, "Connector Information"

.

JRLWC1211GB

Revision: 2013 February

2012 Murano CrossCabriolet

TURN SIGNAL AND HAZARD WARNING LAMP SYSTEM

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TURN SIGNAL AND HAZARD WARNING LAMP SYSTEM

Wiring Diagram 

INFOID:0000000007565429

For connector terminal arrangements, harness layouts, and alphabets in a 

 (option abbreviation; if not

described in wiring diagram), refer to 

GI-12, "Connector Information"

.

JCLWA5287GB

Revision: 2013 February

2012 Murano CrossCabriolet

EXL-30

< WIRING DIAGRAM >

[XENON TYPE]

PARKING, LICENSE PLATE AND TAIL LAMPS SYSTEM

PARKING, LICENSE PLATE AND TAIL LAMPS SYSTEM

Wiring Diagram 

INFOID:0000000007565430

For connector terminal arrangements, harness layouts, and alphabets in a 

 (option abbreviation; if not

described in wiring diagram), refer to 

GI-12, "Connector Information"

.

JCLWA5300GB

Revision: 2013 February

2012 Murano CrossCabriolet

PARKING, LICENSE PLATE AND TAIL LAMPS SYSTEM

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JCLWA5301GB

Revision: 2013 February

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< WIRING DIAGRAM >

[XENON TYPE]

STOP LAMP

STOP LAMP

Wiring Diagram 

INFOID:0000000007565431

For connector terminal arrangements, harness layouts, and alphabets in a 

 (option abbreviation; if not

described in wiring diagram), refer to 

GI-12, "Connector Information"

.

JCLWA5293GB

Revision: 2013 February

2012 Murano CrossCabriolet

BACK-UP LAMP

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BACK-UP LAMP

Wiring Diagram 

INFOID:0000000007565432

For connector terminal arrangements, harness layouts, and alphabets in a 

 (option abbreviation; if not

described in wiring diagram), refer to 

GI-12, "Connector Information"

.

JCLWA5296GB

Revision: 2013 February

2012 Murano CrossCabriolet

EXL-34

< BASIC INSPECTION >

[XENON TYPE]

DIAGNOSIS AND REPAIR WORKFLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

INFOID:0000000007796146

OVERALL SEQUENCE

DETAILED FLOW

JMIIA2097GB

Revision: 2013 February

2012 Murano CrossCabriolet

DIAGNOSIS AND REPAIR WORKFLOW

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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