Nissan Murano Z50 (2005 year). Manual - part 74

COMBINATION METERS

DI-21

C

D

E

F

G

H

I

J

L

M

A

B

DI

Revision: 2005 August

2005 Murano

2. 

CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL

1.

Select “ENGINE” on CONSULT-II.

2.

Using “COOLAN TEMP/S” on “DATA MONITOR”, print out the
CONSULT-II screen.

3.

Select “METER A/C AMP” on CONSULT-II.

4.

Using “W TEMP METER” on “DATA MONITOR”, compare the
value of data monitor with that of the “COOLAN TEMP/S”.

OK or NG

OK

>> Perform ECM self-diagnosis. Refer to 

EC-126, "CON-

SULT-II Function (ENGINE)"

 .

NG

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

DI-37,

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

 .

Fuel Level Sensor Signal Inspection

AKS00D55

Symptom:

●

Fuel gauge indication is malfunction.

●

Low-fuel warning lamp indication is irregular.

NOTE:
The following symptoms are not malfunction.

Fuel level sensor unit

●

Depending on vehicle position or driving circumstance, the fuel level in the tank various, and the pointer
may fluctuate.

●

If the vehicle is fueled with the ignition switch ON, the pointer will move slowly.

Low-fuel warning lamp

●

Depending on vehicle position or driving circumstance, the fuel in the tank flows and the warning lamp ON
timing may change.

1. 

CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL

1.

Select “METER A/C AMP” on CONSULT-II.

2.

Using “FUEL METER” on “DATA MONITOR”, compare the value
of “DATA MONITOR” with fuel gauge pointer of combination
meter. 

OK or NG

OK

>> GO TO 2.

NG

>> Replace combination meter.

2. 

CHECK FUEL LEVEL SENSOR

Check components. Refer to 

DI-25, "FUEL LEVEL SENSOR UNIT CHECK"

 .

OK or NG

OK

>> GO TO 3.

NG

>> Replace fuel level sensor unit.

SKIA4368E

Fuel gauge pointer

Reference value of data monitor [lit.]

Full

Approx. 78

Three quarters

Approx. 63

Half

Approx. 43

A quarter

Approx. 22

Empty

Approx. 7

PKIA2088E

DI-22

COMBINATION METERS

Revision: 2005 August

2005 Murano

3. 

CHECK FUEL LEVEL SENSOR (MAIN) CIRCUIT 1

1.

Disconnect fuel level sensor unit and fuel pump (main) connec-
tor and unified meter and A/C amp. connector.

2.

Check continuity between fuel level sensor unit and fuel pump
(main) harness connector B17 terminal 2 (G/B) and unified
meter and A/C amp. harness connector M50 terminal 28 (G/B). 

3.

Check continuity between fuel level sensor unit and fuel pump
(main) harness connector B17 terminal 2 (G/B) and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair harness or connector.

4. 

CHECK FUEL LEVEL SENSOR (MAIN) CIRCUIT 2

1.

Check continuity between fuel level sensor unit and fuel pump
(main) harness connector B17 terminal 5 (B/W) and unified
meter and A/C amp. harness connector M50 terminal 36 (B/W).

2.

Check continuity between fuel level sensor unit and fuel pump
(main) harness connector B17 terminal 5 (B/W) and ground.

OK or NG

OK

>> GO TO 5.

NG

>> Repair harness or connector.

5. 

CHECK INSTALLATION CONDITION

Check fuel level sensor unit installation, and check whether the float arm interferes or binds with any of the
internal components in the fuel tank.

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

>> Install fuel level sensor unit properly.

2 (G/B) – 28 (G/B)

: Continuity should exist.

2 (G/B) – Ground

: Continuity should not exist.

PKIB3977E

5 (B/W) – 36 (B/W)

: Continuity should exist.

5 (B/W) – Ground

: Continuity should not exist.

PKIB3978E

COMBINATION METERS

DI-23

C

D

E

F

G

H

I

J

L

M

A

B

DI

Revision: 2005 August

2005 Murano

Odo/Trip Meter and Illumination Control Switch Inspection

AKS00D56

Symptom: Illumination control does not operate.

1. 

CHECK ODO/TRIP METER AND ILLUMINATION CONTROL SWITCH

1.

Remove combination meter. Refer to 

DI-26, "Disassembly and Assembly of Combination Meter"

 .

2.

Remove meter lid. Refer to 

DI-26, "Disassembly and Assembly of Combination Meter"

 .

3.

Check continuity between odo/trip meter and illumination control
switch connector M303 terminals 3, 4 or 5 and 6.

OK or NG

OK

>> Replace combination meter.

NG

>> Replace odo/trip meter and illumination control switch.

Fuel Gauge Pointer Fluctuates, Indicator Wrong Value or Varies

AKS00D57

1. 

CHECK FUEL GAUGE FLUCTUATION

Test drive vehicle to see if gauge fluctuates only during driving or at the instant of stopping.

Does the indication value vary only during driving or at the instant of stopping?

YES

>> The pointer fluctuation may be caused by fuel level change in the fuel tank. Condition is normal.

NO

>> Ask the customer about the situation when the symptom occurs in detail, and perform the trouble

diagnosis.

Fuel Gauge Does Not Move to FULL Position

AKS00D58

1. 

QUESTION 1

Does it take a long time for the pointer to move to FULL position?

YES

>> GO TO 2.

NO

>> GO TO 3.

2. 

QUESTION 2

Was the vehicle fueled with the ignition switch ON?

YES

>> Be sure to fuel the vehicle with the ignition switch OFF. Otherwise, it will take a long time to move

to FULL position because of the characteristic of the fuel gauge.

NO

>> GO TO 3.

3. 

QUESTION 3

Is the vehicle parked on an incline?

YES

>> Check the fuel level indication with vehicle on a level surface.

NO

>> GO TO 4.

Terminal

Condition

Continuity

3

6

Illumination control switch (+) is pushed.

Yes

Illumination control switch (+) is released.

No

4

Illumination control switch (–) is pushed.

Yes

Illumination control switch (–) is released.

No

5

Odo/trip meter switch is pushed.

Yes

Odo/trip meter switch is released.

No

PKIB3985E

DI-24

COMBINATION METERS

Revision: 2005 August

2005 Murano

4. 

QUESTION 4

During driving, does the fuel gauge pointer move gradually toward EMPTY position?

YES

>> Check the fuel level sensor unit. Refer to 

DI-25, "FUEL LEVEL SENSOR UNIT CHECK"

 .

NO

>> The float arm may interfere or bind with any of the components in the fuel tank.

COMBINATION METERS

DI-25

C

D

E

F

G

H

I

J

L

M

A

B

DI

Revision: 2005 August

2005 Murano

Electrical Components Inspection

AKS00D59

FUEL LEVEL SENSOR UNIT CHECK

For removal, refer to 

FL-4, "FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY"

 .

Check Fuel Level Sensor Unit and Fuel Pump (Main) 

Check resistance between fuel level sensor unit and fuel pump
(main) connector terminals 2 and 6.

*1 and *2: When float rod is in contact with stopper.

Check Fuel Level Sensor Unit and Pump (Main) Harness

Check continuity between fuel level sensor unit and fuel pump
(main) connector terminals 5 and 7.

Check Fuel Level Sensor Unit (Sub)

Check resistance between fuel level sensor unit and fuel pump
(main) connector terminals 6 and 7.

*1 and *2: When float rod is in contact with stopper.

Removal and Installation of Combination Meter

AKS00D5A

REMOVAL

1.

Remove instrument driver lower panel. Refer to 

IP-11, "Removal

and Installation"

 .

2.

Remove steering column cover. Refer to 

IP-11, "Removal and

Installation"

 .

3.

Remove screws (2) and remove combination meter.

INSTALLATION

Installation is the reverse order of removal.

Terminal

Float position

[mm (in)]

Resistance value [

Ω

]

2

6

*1

Empty

15 (0.59)

Approx. 81.5

*2

Full

193 (7.6)

Approx. 2.5

PKIB6087E

5 – 7

: Continuity should exist.

PKIA2596E

Terminal

Float position

[mm (in)]

Resistance value [

Ω

]

6

7

*1

Empty

10 (0.39)

Approx. 45.2

*2

Full

198 (7.8)

Approx. 2.5

PKIB6088E

PKIA2435E

DI-26

COMBINATION METERS

Revision: 2005 August

2005 Murano

Disassembly and Assembly of Combination Meter

AKS00D5B

DISASSEMBLY

1.

Remove screws (2). Disconnect odo/trip meter and illumination
control switch and hazard switch connectors and remove meter
lid.

2.

Remove screws (3) and remove odo/trip meter and illumination
control switch.

1.

Meter lid

2.

Odo/trip meter and illumination con-
trol switch

3.

Screws

4.

Unified meter control unit assembly

5.

Screws

6.

Switch cover (Left side)

7.

Rear cover

8.

Screws

9.

Switch cover (Right side)

10. Bracket

11. Screws

PKIA2436E

PKIA2437E

PKIA2438E

COMBINATION METERS

DI-27

C

D

E

F

G

H

I

J

L

M

A

B

DI

Revision: 2005 August

2005 Murano

3.

Remove screws (2) and remove switch cover.

4.

Remove screws (2) and remove rear cover.

5.

Disengaged the tabs (2) to separate bracket.

6.

Remove bulbs.

ASSEMBLY

Assembly is the reverse order of disassembly.

PKIA2439E

PKIA2440E

DI-28

UNIFIED METER AND A/C AMP

Revision: 2005 August

2005 Murano

UNIFIED METER AND A/C AMP

PFP:27760

System Description

AKS00D5C

●

For the unified meter and A/C amp., the signal required for controlling the combination meter are inte-
grated in the A/C auto amp.

●

Unified meter and A/C amp. controls each operation for A/C auto amp. For information regarding A/C con-
trol, refer to 

ATC-25, "AIR CONDITIONER CONTROL"

  in ATC section.

●

Unified meter and A/C amp. inputs necessary information for combination meter from each unit by CAN
communication and so on.

●

And unified meter and A/C amp. outputs these signals using communication line (TX, RX) between unified
meter and A/C amp. and combination meter.

●

Other input signals are also sent to the ECM, TCM, AWD control unit, BCM, display unit (without NAVI)
and display control unit (with NAVI) using CAN communication.

●

The signals required for the distance to empty (DTE) display are centralized in the unified meter and A/C
amp., converted into data, and sent to the display unit (without NAVI) or display control unit (with NAVI)
using CAN communication.

●

The unified meter and A/C amp. have a CONSULT-II function (self-diagnostic results, CAN diagnostic
support monitor, data monitor).

INPUT/OUTPUT SIGNALS
Between Unified Meter and A/C Amp. and Combination Meter

Unit

Input

Output

Unified meter and A/C amp.

●

Seat belt buckle switch signal (Driver's side)

●

Parking brake signal

●

Illumination control nighttime required signal

●

Refuel status signal

●

Low-fuel warning lamp condition signal

●

Combination meter receive error signal

●

Delivery destination data signal

●

Combination meter specifications signal

●

Vehicle speed signal (8-pulse)

●

Engine speed signal

●

Engine coolant temperature signal

●

Fuel level sensor signal (resistance value)

●

Malfunction indicator signal

●

ABS warning lamp signal

●

Low tire pressure warning signal

●

Brake warning lamp signal

●

AWD warning lamp signal

●

Turn indicator signal

●

High beam request signal

●

VDC OFF indicator lamp signal

●

SLIP indicator lamp signal

●

CRUISE indicator lamp signal

●

SET indicator lamp signal

●

AWD lock indicator lamp signal

●

CVT indicator lamp signal

●

CVT position indicator signal

●

Manual mode indicator signal

●

Manual mode gear position signal

●

Second position indicator signal

●

CAN communication condition signal of CVT

●

Door switch signal

●

Oil pressure switch signal

●

Position lights request signal

●

Buzzer output signal

UNIFIED METER AND A/C AMP

DI-29

C

D

E

F

G

H

I

J

L

M

A

B

DI

Revision: 2005 August

2005 Murano

FAIL-SAFE
Solution When Communication Error Between the Unified Meter & A/C Amp. and the Combi-
nation Meter

CAN Communication System Description

AKS00D5D

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Unit

AKS00D5E

Refer to 

LAN-29, "CAN Communication Unit"

  in “LAN SYSTEM”.

Function

Specifications

Speedometer

Reset to zero by suspending communication.

Tachometer

Fuel gauge

Water temperature gauge

Illumination control

Combination meter illumination

When suspending communication, change to nighttime mode.

Odo/trip meter

Integrate in response to 8-pulse input.

CVT position indicator

The display turns off by suspending communication.

Warning buzzer

The warning buzzer turns off by suspending communication.

Warning lamp/indicator lamp

ABS warning lamp

The lamp turns on by suspending communication.

VDC OFF indicator

SLIP indicator

Brake warning lamp

High beam indicator

The lamp turns off by suspending communication.

Door warning lamp

Low tire pressure warning lamp

SET indicator lamp

CRUISE indicator lamp

AWD warning lamp

AWD LOCK indicator lamp

Oil pressure warning lamp

Turn signal indicator

Malfunction indicator lamp

CVT indicator lamp

DI-30

UNIFIED METER AND A/C AMP

Revision: 2005 August

2005 Murano

Schematic

AKS00D5F

TKWA1707E

UNIFIED METER AND A/C AMP

DI-31

C

D

E

F

G

H

I

J

L

M

A

B

DI

Revision: 2005 August

2005 Murano

CONSULT-II Function (METER A/C AMP)

AKS00D5G

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

CONSULT-II BASIC OPERATION

CAUTION:

If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.

1.

With the ignition switch OFF, connect “CONSULT-II” and “CON-
SULT-II CONVERTER” to the data link connector, then turn igni-
tion switch ON.

2.

Touch “START (NISSAN BASED VHCL)”.

3.

Touch “METER A/C AMP” on “SELECT SYSTEM” screen. If
“METER A/C AMP” is not indicated, go to 

GI-39, "CONSULT-II

Data Link Connector (DLC) Circuit"

 .

System

Diagnosis mode

Description

Reference 

page

METER A/C AMP

Self-diagnosis results

Unified meter and A/C amp. check the conditions and indi-
cates any error that unified meter and A/C amp. memorized.

DI-32

CAN diagnostic support monitor

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

LAN-19

Data monitor

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

DI-32

PBIB1300E

BCIA0029E

BCIA0030E

DI-32

UNIFIED METER AND A/C AMP

Revision: 2005 August

2005 Murano

4.

Select “SELF-DIAG RESULTS”, “CAN DIAG SUPPORT MNTR”
or “DATA MONITOR”. 

SELF-DIAGNOSTIC RESULTS
Operation Procedure

1.

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

2.

Self-diagnosis results are displayed.

Display Item List

“TIME” indicates the condition of the self-diagnosis results judged by each signal input.

●

Normal: In case of operating properly at the present in spite of having malfunction in the past, then “TIME”
indicates “1-63”.

●

Malfunction: Soon after detecting malfunctions by self-diagnoses or current malfunction, “0” is indicated.

After returning to normal condition, every time when ignition switch is turned to “OFF” from “ON”, time will be
added like “1”

→

“2”

→

“3”···“63”, and when the key operation is performed 64 times, the result of the self-diag-

noses will be erased. And if any malfunction is detected again, “0” will be indicated.

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 low tire pressure warning control unit, display
control unit (with NAVI) or display unit (without NAVI) malfunction.

DATA MONITOR
Operation Procedure

1.

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

2.

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

BCIA0031E

SKIA4956E

CONSULT-ll display

Malfunction is detected when...

Reference 

page

CAN COMM CIRC 
[U1000]

Malfunction is detected in CAN communication.

CAUTION:

Even when there is no malfunction on CAN communication system, malfunction may 
be misinterpreted when battery has low voltage (when maintaining 7 - 8 V for about 2 
seconds) or 10A fuse [No. 19, located in the fuse block (J/B)] is disconnected.

DI-34

METER COMM CIRC
[B2202]

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

DI-34

VEHICLE SPEED 
CIRC
[B2205]

When an erroneous speed signal is input for 1 seconds.

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-37

UNIFIED METER AND A/C AMP

DI-33

C

D

E

F

G

H

I

J

L

M

A

B

DI

Revision: 2005 August

2005 Murano

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

This is the angle correction value after the speed signal from the 
ABS actuator and electric unit (control unit) is converted into the 
vehicle speed.

SPEED OUTPUT [km/h] or [mph]

X

X

This is the angle correction value before the speed signal from the 
ABS actuator and electric unit (control unit) is converted into the 
vehicle speed.

TACHO METER [rpm]

X

X

This is the converted value for the engine speed signal from the 
ECM.

W TEMP METER [

°

C] or [

°

F]

X

X

This is the converted value for the engine coolant temperature sig-
nal from the ECM. 

FUEL METER [lit.]

X

X

This is the processed value for the signal (resistance value) from 
the fuel gauge.

DISTANCE [km] or [mile]

X

X

This is the calculated value for the speed signal from the ABS actu-
ator and electric unit (control unit), the signal (resistance signal) 
from the 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]

X

Indicates [ON/OFF] condition of brake warning lamp. *1

M RANGE SW [ON/OFF] *2

X

X

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

NM RANGE SW [ON/OFF] *2

X

X

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

AT SFT UP SW [ON/OFF] *2

X

X

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

AT SFT DWN SW [ON/OFF] *2

X

X

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

DI-34

UNIFIED METER AND A/C AMP

Revision: 2005 August

2005 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. 
*2: Vehicles without manual mode always indicates “OFF”.
*3: Vehicles without manual mode always indicates “1”.

DTC [U1000] CAN Communication Circuit

AKS00D5H

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 “CAN system”. Refer to 

LAN-5, "Precautions When Using CONSULT-II"

 .

DTC [B2202] Meter Communication Circuit

AKS00D5I

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.

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.

O/D OFF SW [ON/OFF]

X

Indicates [ON/OFF] condition of CVT device (second position 
switch).

BRAKE SW [ON/OFF]

X

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

AT-M IND [ON/OFF] *2

X

X

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

AT-M GEAR [5-1] *3

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.

Display item [Unit]

MAIN

SIGNALS

SELECTION 

FROM MENU

Contents

UNIFIED METER AND A/C AMP

DI-35

C

D

E

F

G

H

I

J

L

M

A

B

DI

Revision: 2005 August

2005 Murano

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 (R/L) and unified meter and A/C amp. harness
connector M49 terminal 19 (R/L).

4.

Check continuity between combination meter harness connector
M25 terminal 18 (R/L) 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 (R/L) 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."

 .

5. 

CHECK VOLTAGE SIGNAL OF COMBINATION METER

1.

Turn ignition switch OFF and connect combination meter connector.

2.

Turn ignition switch ON.

3.

Check voltage signal between combination meter harness con-
nector M25 terminal 18 (R/L) 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.

18 (R/L) – 19 (R/L)

: Continuity should exist.

18 (R/L) – Ground

: Continuity should not exist.

PKIB3979E

18 (R/L) – Ground

: Approx. 5 V

PKIB3980E

18 (R/L) – Ground:

PKIB3981E

SKIA3361E

DI-36

UNIFIED METER AND A/C AMP

Revision: 2005 August

2005 Murano

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 (R/B) and unified meter and A/C amp. harness
connector M49 terminal 9 (R/B).

4.

Check continuity between combination meter harness connector
M25 terminal 19 (R/B) 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 (R/B) and ground.

OK or NG

OK

>> GO TO 8.

NG

>> Replace combination meter.

8. 

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

1.

Turn ignition switch OFF and connect unified meter and A/C amp. connector.

2.

Turn ignition switch ON.

3.

Check voltage signal between combination meter harness con-
nector M25 terminal 19 (R/B) 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."

 .

19 (R/B) – 9 (R/B)

: Continuity should exist.

19 (R/B) – Ground

: Continuity should not exist.

PKIB3982E

9 (R/B) – Ground

: Approx. 5 V

PKIB3983E

19 (R/B) – Ground:

PKIB3984E

SKIA3362E