Nissan Murano Z50 (2007 year). Manual - part 62

UNIFIED METER AND A/C AMP

DI-29

C

D

E

F

G

H

I

J

L

M

A

B

DI

Revision: 2006 July

2007 Murano

Schematic

NKS001SQ

TKWB2601E

DI-30

UNIFIED METER AND A/C AMP

Revision: 2006 July

2007 Murano

CONSULT-II Function (METER A/C AMP)

NKS001SR

CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.

CONSULT-II BASIC OPERATION

Refer to 

GI-37, "CONSULT-II Start Procedure"

 .

SELF-DIAG RESULTS
Operation Procedure

1.

Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.

2.

Self-diagnosis results are displayed.

Display Item List

NOTE:
“TIME” means the following.

●

0: Means detected malfunction at present. (From malfunction detection to turning ignition switch OFF)

●

1 - 63: Means detected malfunction in past. (Displays number of ignition switch OFF 

→

 ON after detecting

malfunction. “SELF-DIAG RESULTS” is erased when exceeding “63”.)

CAUTION:

“TIME” keeps showing “0” after returning to normal condition only in the case that malfunction his-
tory of “CAN COMM CIRC [U1000]” remains because of display control unit (with NAVI) or display unit
(without NAVI) malfunction.

System

Diagnosis mode

Description

Reference 

page

METER A/C AMP

SELF-DIAG RESULTS

Unified meter and A/C amp. checks the conditions and dis-
plays memorized error.

DI-30

CAN DIAG SUPPORT MNTR

The results of transmit/receive diagnosis of CAN communica-
tion can be read.

LAN-44

DATA MONITOR

Displays unified meter and A/C amp. input data in real time.

DI-31

SKIA4956E

CONSULT-ll display

Malfunction is detected when...

Reference 

page

CAN COMM CIRC 
[U1000]

When meter and A/C amp. is not transmitting or receiving CAN communication signal for 2 
seconds or more.

DI-33

METER COMM CIRC
[B2202]

Malfunction is detected in communication of between combination meter and unified meter 
and A/C amp.

DI-33

VEHICLE SPEED 
CIRC
[B2205]

When an erroneous speed signal is input for 1 second.

CAUTION:

Even when there is no malfunction on speed signal system, malfunction may be misin-
terpreted when battery has low voltage (when maintaining 7 - 8 V for about 2 seconds). 

DI-36

UNIFIED METER AND A/C AMP

DI-31

C

D

E

F

G

H

I

J

L

M

A

B

DI

Revision: 2006 July

2007 Murano

DATA MONITOR
Operation Procedure

1.

Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.

2.

Touch “MAIN SIGNALS” or “SELECTION FROM MENU” on the “DATA MONITOR” screen.

3.

When “SELECTION FROM MENU” is selected, touch individual items to be monitored. When “MAIN SIG-
NALS” is selected, main items will be monitored.

4.

Touch “START”.

5.

Touch “RECORD” while monitoring, then the status of the moni-
tored item can be recorded. To stop recording, touch “STOP”.

Display Item List

MAIN SIGNALS

Monitors main signals.

SELECTION FROM MENU

Selects and monitors individual signal.

SKIA4957E

Display item [Unit]

MAIN

SIGNALS

SELECTION 

FROM MENU

Contents

SPEED METER [km/h] or [mph]

X

X

Displays the value of vehicle speed signal, which is input from ABS 
actuator and electric unit (control unit).

SPEED OUTPUT [km/h] or [mph]

X

X

Displays the value of vehicle speed signal, which is transmitted to 
each unit with CAN communication.

TACHO METER [rpm]

X

X

Displays the value of engine speed signal, which is input from ECM.

W TEMP METER [

°

C] or [

°

F]

X

X

Displays the value of engine coolant temperature signal, which is 
input from ECM. 

FUEL METER [lit.]

X

X

Displays the value, which processes a resistance signal from fuel 
gauge.

DISTANCE [km] or [mile]

X

X

Displays the value, which is calculated by vehicle speed signal from 
ABS actuator and electric unit (control unit), fuel gauge and fuel 
consumption from ECM.

FUEL W/L [ON/OFF]

X

X

Indicates [ON/OFF] condition of low-fuel warning lamp.

MIL [ON/OFF] 

X

Indicates [ON/OFF] condition of malfunction indicator lamp.

AIR PRES W/L [ON/OFF]

X

Indicates [ON/OFF] condition of low tire pressure warning lamp.

SEAT BELT W/L [ON/OFF]

X

Indicates [ON/OFF] condition of seat belt warning lamp.

BUZZER [ON/OFF]

X

X

Indicates [ON/OFF] condition of buzzer.

DOOR W/L [ON/OFF]

X

Indicates [ON/OFF] condition of door warning lamp.

HI-BEAM IND [ON/OFF]

X

Indicates [ON/OFF] condition of high beam indicator.

TURN IND [ON/OFF]

X

Indicates [ON/OFF] condition of turn indicator.

OIL W/L [ON/OFF]

X

Indicates [ON/OFF] condition of oil pressure warning lamp.

VDC/TCS IND [ON/OFF]

X

Indicates [ON/OFF] condition of VDC/TCS OFF indicator lamp.

ABS W/L [ON/OFF]

X

Indicates [ON/OFF] condition of ABS warning lamp.

SLIP IND [ON/OFF]

X

Indicates [ON/OFF] condition of SLIP indicator lamp.

BRAKE W/L [ON/OFF]*

1

X

Indicates [ON/OFF] condition of brake warning lamp.

M RANGE SW [ON/OFF] 

X

X

Indicates [ON/OFF] condition of manual mode range switch.

NM RANGE SW [ON/OFF]

X

X

Indicates [ON/OFF] condition of except for manual mode range 
switch.

DI-32

UNIFIED METER AND A/C AMP

Revision: 2006 July

2007 Murano

NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
*1: Monitor keeps indicating “OFF” when brake warning lamp is on by the parking brake operation or low brake fluid level. 

Power Supply and Ground Circuit Inspection

NKS002CS

1. 

CHECK FUSE

Check for blown unified meter and A/C amp. fuses.

OK or NG

OK

>> GO TO 2.

NG

>> Be sure to eliminate cause of malfunction before installing new fuse. Refer to 

PG-3, "POWER

SUPPLY ROUTING CIRCUIT"

 .

AT SFT UP SW [ON/OFF]

X

X

Indicates [ON/OFF] condition of CVT shift-up switch.

AT SFT DWN SW [ON/OFF]

X

X

Indicates [ON/OFF] condition of CVT shift-down switch.

O/D OFF SW [ON/OFF]

X

Indicates [ON/OFF] condition of SPORT mode switch (second posi-
tion switch).

BRAKE SW [ON/OFF]

X

Indicates [ON/OFF] condition of brake switch (stop lamp switch).

AT-M IND [ON/OFF]

X

X

Indicates [ON/OFF] condition of CVT manual mode indicator.

AT-M GEAR [5-1]

X

X

Indicates [5-1] condition of CVT manual mode gear position.

P RANGE IND [ON/OFF] 

X

X

Indicates [ON/OFF] condition of CVT shift P range indicator.

R RANGE IND [ON/OFF]

X

X

Indicates [ON/OFF] condition of CVT shift R range indicator.

N RANGE IND [ON/OFF]

X

X

Indicates [ON/OFF] condition of CVT shift N range indicator.

D RANGE IND [ON/OFF]

X

X

Indicates [ON/OFF] condition of CVT shift D range indicator.

L RANGE IND [ON/OFF]

X

X

Indicates [ON/OFF] condition of CVT shift L range indicator.

CVT IND [ON/OFF]

X

Indicates [ON/OFF] condition of CVT indicator.

S RANGE IND [ON/OFF]

X

X

Indicates [ON/OFF] condition of CVT shift S range indicator.

CRUISE IND [ON/OFF]

X

Indicates [ON/OFF] condition of CRUISE indicator.

SET IND [ON/OFF]

X

Indicates [ON/OFF] condition of SET indicator.

4WD LOCK SW [ON/OFF]

X

Indicates [ON/OFF] condition of AWD lock switch.

4WD LOCK IND [ON/OFF]

X

Indicates [ON/OFF] condition of AWD lock indicator lamp.

4WD W/L [ON/OFF]

X

Indicates [ON/OFF] condition of AWD warning lamp.

RR COMB STATE [OK/NG]

X

Indicates [OK/NG] condition of rear combination lamp circuit.

Display item [Unit]

MAIN

SIGNALS

SELECTION 

FROM MENU

Contents

Power source

Fuse No.

Battery power supply

19

Ignition power supply (ON or START)

12

Ignition power supply (ON)

10, 11

UNIFIED METER AND A/C AMP

DI-33

C

D

E

F

G

H

I

J

L

M

A

B

DI

Revision: 2006 July

2007 Murano

2. 

CHECK POWER SUPPLY CIRCUIT

Check voltage between unified meter and A/C amp. harness con-
nector terminals and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Check harness between unified meter and A/C amp. and fuse.

3. 

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect unified meter and A/C amp. connector.

3.

Check continuity between unified meter and A/C amp. harness
connector M50 terminals 29, 30 and ground.

OK or NG

OK

>> INSPECTION END

NG

>> Repair harness or connector.

DTC [U1000] CAN Communication Circuit

NKS001SS

Symptom: Display “CAN COMM CIRC [U1000]” at the result of self-diagnosis for unified meter and A/C amp.

1. 

CHECK CAN COMMUNICATION 

1.

Select “SELF-DIAG RESULTS” mode for “METER A/C AMP” with CONSULT-II.

2.

Print out CONSULT-II screen.

>> Go to “LAN system”. Refer to 

LAN-3, "Precautions When Using CONSULT-II"

 .

DTC [B2202] Meter Communication Circuit

NKS001ST

Symptom: Display “METER COMM CIRC [B2202]” at the result of self-diagnosis for unified meter and A/C
amp.

1. 

CHECK CONNECTOR

Check combination meter, unified meter and A/C amp. and terminals (combination meter side, unified meter
and A/C amp. side and harness side) for looseness or bent terminals.

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminal or connector.

Terminals

Ignition switch position

(+)

(–)

OFF

ON

Connector

Terminal

M50

21

Ground

Battery voltage

Battery voltage

22

0 V

Battery voltage

M51

46

0 V

Battery voltage

PKIB3971E

29 – Ground

: Continuity should exist.

30 – Ground

PKIB3973E

DI-34

UNIFIED METER AND A/C AMP

Revision: 2006 July

2007 Murano

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-36,

"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

UNIFIED METER AND A/C AMP

DI-35

C

D

E

F

G

H

I

J

L

M

A

B

DI

Revision: 2006 July

2007 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-36,

"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

DI-36

UNIFIED METER AND A/C AMP

Revision: 2006 July

2007 Murano

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-36, "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-64, "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.

CAUTION:

●

When carrying audio unit body, do not touch internal mech-
anism access from cassette tape slot.

●

Be careful not to allow foreign material to enter from cas-
sette tape slot.

●

Use appropriate screws for each, as screws for audio unit
are different from that for unified meter and A/C amp.

INSTALLATION

Installation is basically the reverse order of removal.

19 – Ground:

PKIB3984E

SKIA3362E

RJIA1813E

WARNING LAMPS

DI-37

C

D

E

F

G

H

I

J

L

M

A

B

DI

Revision: 2006 July

2007 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

DI-38

WARNING LAMPS

Revision: 2006 July

2007 Murano

Schematic

NKS001SZ

TKWB2602E

WARNING LAMPS

DI-39

C

D

E

F

G

H

I

J

L

M

A

B

DI

Revision: 2006 July

2007 Murano

Wiring Diagram — WARN —

NKS001T0

TKWB2603E

DI-40

WARNING LAMPS

Revision: 2006 July

2007 Murano

TKWB2604E

WARNING LAMPS

DI-41

C

D

E

F

G

H

I

J

L

M

A

B

DI

Revision: 2006 July

2007 Murano

TKWB2605E

DI-42

WARNING LAMPS

Revision: 2006 July

2007 Murano

TKWB2606E

WARNING LAMPS

DI-43

C

D

E

F

G

H

I

J

L

M

A

B

DI

Revision: 2006 July

2007 Murano

TKWB2607E

DI-44

WARNING LAMPS

Revision: 2006 July

2007 Murano

TKWB2608E