Nissan Murano Z50 (2006 year). Manual - part 73

UNIFIED METER AND A/C AMP

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2. 

CHECK METER/GAUGES VISUALLY

Check the pointer on the meter/gauges fluctuate at the engine start.

Is the fluctuation acceptable?

YES

>> GO TO 3.

NO

>> GO TO 6.

3. 

CHECK CONTINUITY COMMUNICATION CIRCUIT (TX: COMBINATION METER)

1.

Turn ignition switch OFF.

2.

Disconnect combination meter connector and unified meter and A/C amp. connector.

3.

Check continuity between combination meter harness connector
M25 terminal 18 and unified meter and A/C amp. harness con-
nector M49 terminal 19.

4.

Check continuity between combination meter harness connector
M25 terminal 18 and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair harness or connector.

4. 

CHECK VOLTAGE OF UNIFIED METER AND A/C AMP.

1.

Connect unified meter and A/C amp. connector.

2.

Turn ignition switch ON.

3.

Check voltage between combination meter harness connector
M25 terminal 18 and ground.

OK or NG

OK

>> GO TO 5.

NG

>> Replace unified meter and A/C amp. Refer to 

DI-37,

"Removal and Installation of Unified Meter and A/C
Amp."

 .

18 – 19

: Continuity should exist.

18 – Ground

: Continuity should not exist.

PKIB3979E

18 – Ground

: Approx. 5 V

PKIB3980E

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UNIFIED METER AND A/C AMP

Revision: 2006 August

2006 Murano

5. 

CHECK VOLTAGE SIGNAL OF COMBINATION METER

1.

Turn ignition switch OFF.

2.

Connect combination meter connector.

3.

Turn ignition switch ON.

4.

Check voltage signal between combination meter harness con-
nector M25 terminal 18 and ground.

OK or NG

OK

>> Replace unified meter and A/C amp. Refer to 

DI-37,

"Removal and Installation of Unified Meter and A/C Amp."

 .

NG

>> Replace combination meter.

6. 

CHECK CONTINUITY COMMUNICATION CIRCUIT (RX: COMBINATION METER)

1.

Turn ignition switch OFF.

2.

Disconnect combination meter connector and unified meter and A/C amp. connector.

3.

Check continuity between combination meter harness connector
M25 terminal 19 and unified meter and A/C amp. harness con-
nector M49 terminal 9.

4.

Check continuity between combination meter harness connector
M25 terminal 19 and ground.

OK or NG

OK

>> GO TO 7.

NG

>> Repair harness or connector.

7. 

CHECK VOLTAGE OF COMBINATION METER

1.

Connect combination meter connector.

2.

Turn ignition switch ON.

3.

Check voltage between unified meter and A/C amp. harness
connector M49 terminal 9 and ground.

OK or NG

OK

>> GO TO 8.

NG

>> Replace combination meter.

18 – Ground:

PKIB3981E

SKIA3361E

19 – 9

: Continuity should exist.

19 – Ground

: Continuity should not exist.

PKIB3982E

9 – Ground

: Approx. 5 V

PKIB3983E

UNIFIED METER AND A/C AMP

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8. 

CHECK VOLTAGE SIGNAL OF UNIFIED METER AND A/C AMP.

1.

Turn ignition switch OFF.

2.

Connect unified meter and A/C amp. connector.

3.

Turn ignition switch ON.

4.

Check voltage signal between combination meter harness con-
nector M25 terminal 19 and ground.

OK or NG

OK

>> Replace combination meter.

NG

>> Replace unified meter and A/C amp. Refer to 

DI-37, "Removal and Installation of Unified Meter

and A/C Amp."

 .

DTC [B2205] Vehicle Speed Circuit

NKS001SU

Symptom: Display “VEHICLE SPEED CIRC [B2205]” at the result of self-diagnosis for unified meter and A/C
amp.
Perform self-diagnosis of ABS actuator and electric unit (control unit), and repair or replace malfunctioning
parts. Refer to 

BRC-67, "CONSULT-II Functions (ABS)"

  (with VDC system) or 

BRC-20, "CONSULT- II Func-

tions (ABS)"

  (without VDC system).

Removal and Installation of Unified Meter and A/C Amp. 

NKS001SV

REMOVAL

1.

Remove the audio unit. Refer to 

AV-59, "Removal and Installa-

tion of Audio Unit"

 .

2.

Remove the fixing screws, then remove the unified meter and A/
C amp.

INSTALLATION

Installation is basically the reverse order of removal.

19 – Ground:

PKIB3984E

SKIA3362E

RJIA1813E

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WARNING LAMPS

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2006 Murano

WARNING LAMPS

PFP:24814

System Description

NKS002D0

OIL PRESSURE WARNING LAMP

Oil pressure warning lamp turns ON when reducing engine oil pressure abnormally.

●

IPDM E/R reads oil pressure switch signal from oil pressure switch, and transmits the signal to unified
meter and A/C amp. through BCM with CAN communication.

●

Unified meter and A/C amp. transmits oil pressure switch signal to combination meter with communication
line.

●

Combination meter turns oil pressure warning lamp ON with received oil pressure switch signal.

PKIB7655E

WARNING LAMPS

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Schematic

NKS001SZ

TKWB2602E

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WARNING LAMPS

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2006 Murano

Wiring Diagram — WARN —

NKS001T0

TKWB2603E

WARNING LAMPS

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TKWB2604E

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WARNING LAMPS

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2006 Murano

TKWB2605E

WARNING LAMPS

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TKWB2606E

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WARNING LAMPS

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2006 Murano

TKWB2607E

WARNING LAMPS

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TKWB2608E

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WARNING LAMPS

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2006 Murano

TKWB2609E

WARNING LAMPS

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TKWB2610E

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WARNING LAMPS

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2006 Murano

Oil Pressure Warning Lamp Stays Off (Ignition Switch ON)

NKS001T1

1. 

CHECK OIL PRESSURE WARNING LAMP OPERATION

Activate IPDM E/R auto active test. Refer to 

PG-21, "Auto Active Test"

 .

Does oil pressure warning lamp blink?

YES

>> GO TO 2.

NO

>> GO TO 5.

2. 

CHECK IPDM E/R INPUT SIGNAL

1.

Turn ignition switch ON.

2.

Check voltage between IPDM E/R harness connector E9 termi-
nal 57 and ground.

OK or NG

OK

>> Replace IPDM E/R. Refer to 

PG-28, "Removal and

Installation of IPDM E/R"

 .

NG

>> GO TO 3.

3. 

CHECK OIL PRESSURE SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect oil pressure switch connector.

3.

Check oil pressure switch. Refer to 

DI-50, "OIL PRESSURE SWITCH"

 .

OK or NG

OK

>> GO TO 4.

NG

>> Replace oil pressure switch.

4. 

CHECK OIL PRESSURE SWITCH CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R connector.

3.

Check continuity between IPDM E/R harness connector E9 ter-
minal 57 and oil pressure switch harness connector F203 termi-
nal 1.

OK or NG

OK

>> Replace IPDM E/R. Refer to 

PG-28, "Removal and

Installation of IPDM E/R"

 .

NG

>> Repair harness or connector.

5. 

CHECK UNIFIED METER AND A/C AMP. (CONSULT-II)

Perform self-diagnosis of unified meter and A/C amp. Refer to 

DI-30, "CONSULT-II Function (METER A/C

AMP)"

 .

Self-diagnosis results

No malfunction detected >> GO TO 6.
Malfunction detected >> Check applicable parts, and repair or replace corresponding parts.

57 – Ground

: Approx. 0 V

SKIB6449E

57 – 1

: Continuity should exist.

PKIB3986E

WARNING LAMPS

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6. 

CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL

1.

Select “METER A/C AMP” on CONSULT-II.

2.

Operate ignition switch with “OIL W/L” of “DATA MONITOR” and
check operation status. 

OK or NG

OK

>> Replace combination meter.

NG

>> GO TO 7.

7. 

CHECK BCM INPUT SIGNAL 

1.

Select “BCM” on CONSULT-II.

2.

Select “DATA MONITOR” of “SIGNAL BUFFER”.

3.

Operate ignition switch with “OIL PRESS SW” of “DATA MONI-
TOR” and check operate status.

OK or NG

OK

>> Replace BCM. Refer to 

BCS-14, "Removal and Installa-

tion of BCM"

 .

NG

>> Replace IPDM E/R. Refer to 

PG-28, "Removal and Installation of IPDM E/R"

 .

Oil Pressure Warning Lamp Does Not Turn Off (Oil Pressure Is Normal)

NKS001T2

NOTE:
For oil pressure inspection, refer to 

LU-7, "OIL PRESSURE CHECK"

 .

1. 

CHECK OIL PRESSURE WARNING LAMP OPERATION

Activate IPDM E/R auto active test. Refer to 

PG-21, "Auto Active Test"

 .

Does oil pressure warning lamp blink?

YES

>> GO TO 2.

NO

>> GO TO 5.

2. 

CHECK IPDM E/R OUTPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect oil pressure switch connector.

3.

Turn ignition switch ON.

4.

Check voltage between oil pressure switch harness connector
F1 terminal 1 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> GO TO 4.

“OIL W/L”

When ignition switch is in ON 
position (Engine stopped)

: ON

When engine running

: OFF

PKIA2064E

“OIL PRESS SW”

When ignition switch is in ON 
position (Engine stopped)

: ON

When engine running

: OFF

SKIA8709E

1 – Ground

: Approx. 12 V

PKIB3987E

DI-50

WARNING LAMPS

Revision: 2006 August

2006 Murano

3. 

CHECK OIL PRESSURE SWITCH

1.

Turn ignition switch OFF.

2.

Check oil pressure switch. Refer to 

DI-50, "OIL PRESSURE SWITCH"

 .

OK or NG

OK

>> Replace IPDM E/R. Refer to 

PG-28, "Removal and Installation of IPDM E/R"

 .

NG

>> Replace oil pressure switch.

4. 

CHECK OIL PRESSURE SWITCH CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R connector.

3.

Check continuity between IPDM E/R harness connector E9 ter-
minal 57 and ground.

OK or NG

OK

>> Replace IPDM E/R. Refer to 

PG-28, "Removal and

Installation of IPDM E/R"

 .

NG

>> Repair harness or connector.

5. 

CHECK IPDM E/R (CONSULT-II)

Perform self-diagnosis of IPDM E/R. Refer to 

PG-19, "CONSULT-II Function (IPDM E/R)"

 .

Self-diagnosis results

No malfunction detected >> Replace combination meter.
Malfunction detected >> Check applicable parts, and repair or replace corresponding parts.

Component Inspection

NKS001T3

OIL PRESSURE SWITCH

Check continuity between oil pressure switch and ground.

57 – Ground

: Continuity should not exist.

SKIA5013E

Condition

Oil pressure [kPa (kg/cm

2

 , psi)]

Continuity

Engine stopped

Less than 29 (0.3, 4)

Yes

Engine running

More than 29 (0.3, 4) 

No

ELF0044D