Nissan Murano Z50 (2003 year). Manual - part 234

LT-232

TURN SIGNAL AND HAZARD WARNING LAMPS

Revision; 2004 April

2003 Murano

TYPE 25/TYPE26/TYPE 27/TYPE 28/TYPE 29/TYPE 30/TYPE 31/TYPE 32
System Diagram

●

Type25

●

Type26

●

Type27

SKIA4926E

SKIA4927E

SKIA4928E

TURN SIGNAL AND HAZARD WARNING LAMPS

LT-233

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Type28

●

Type29

●

Type30

SKIA4929E

SKIA4930E

SKIA4931E

LT-234

TURN SIGNAL AND HAZARD WARNING LAMPS

Revision; 2004 April

2003 Murano

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Type31

●

Type32

SKIA4932E

SKIA4933E

TURN SIGNAL AND HAZARD WARNING LAMPS

LT-235

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Input/output Signal Chart

T: Transmit   R: Receive

Signals

ECM

TCM

Low 

tire 

pres-

sure 

warn-

ing 

con-

trol 

unit

Dis-
play 

unit

Dis-
play 

con-

trol 

unit

BCM

Uni-

fied 

meter 

and 
A/C 

amp.

Steer

ing 

angle 

sen-

sor

Drive

r seat 

con-

trol 

unit

AWD 

con-

trol 

unit

ABS 

actu-

ator 
and 

elec-

tric 

unit 

(con-

trol 

unit)

IPDM 

E/R

Engine and CVT integrated control 
signal

T

R

R

T

Second position signal 

R

T

VDC operation signal

R

R

T

Stop lamp switch signal

R

T

R

Key switch signal

T

R

Ignition switch signal

T

R

R

P range signal

T

R

R

Closed throttle position signal

T

R 

Wide open throttle position signal

T

R 

Second position indicator signal

T

R

R

Engine speed signal

T

R

R

R

R

R

R

Engine status signal

T

R

Engine coolant temperature signal

T

R

Accelerator pedal position signal 

T

R

R

R

Fuel consumption monitor signal

T

R

CVT self-diagnosis signal

R

T

Input shaft revolution signal

R

T

R

Output shaft revolution signal

R

T

R

Air conditioner switch signal

R

T

A/C compressor request signal

T

R

A/C compressor feedback signal

T

R

T

Blower fan motor switch signal

R

T

A/C control signal

T

T

R

R

R

T

Cooling fan speed request signal

T

R

Position lights request signal

T

R

R

Low beam request signal

T

R

Low beam status signal

R

T

High beam request signal

T

R

R

High beam status signal

R

T

Front fog lights request signal

T

R

Vehicle speed signal

R

R

R

T

R

R

R

R

T

R

Sleep request 1 signal

T

R

Sleep request 2 signal

T

R

LT-236

TURN SIGNAL AND HAZARD WARNING LAMPS

Revision; 2004 April

2003 Murano

Door switch signal

R

T

R

R

T

R

R

R

Turn indicator signal

T

R

Key fob ID signal

T

R

Key fob door unlock signal

T

R

Seat belt buckle switch signal

R

T

Oil pressure switch signal

R

T

T

R

Buzzer output signal

T

R

Fuel level sensor signal

R

T

Fuel level low warning signal

R

R

T

Malfunction indicator signal

T

R

ASCD SET lamp signal

T

R

ASCD CRUISE lamp signal

T

R

Front wiper request signal

T

R

Front wiper stop position signal

R

T

Rear window defogger switch signal

T

R

Rear window defogger control signal

R

R

R

T

Hood switch signal

R

T

Theft warning horn request signal

T

R

Horn chirp signal

T

R

Steering angle sensor signal

T

R

Tire pressure signal

T

R

Tire pressure data signal

T

R

R

CVT position indicator signal

T

R

R

ABS warning lamp signal

R

T

VDC OFF indicator lamp signal

R

T

SLIP indicator lamp signal

R

T

Brake warning lamp signal

R

T

System setting signal

T

T

R

AWD warning lamp signal

R

T

AWD lock indicator lamp signal

R

T

AWD lock switch signal

T

R

Parking brake switch signal

R

T

R

Signals

ECM

TCM

Low 

tire 

pres-

sure 

warn-

ing 

con-

trol 

unit

Dis-
play 

unit

Dis-
play 

con-

trol 

unit

BCM

Uni-

fied 

meter 

and 
A/C 

amp.

Steer

ing 

angle 

sen-

sor

Drive

r seat 

con-

trol 

unit

AWD 

con-

trol 

unit

ABS 

actu-

ator 
and 

elec-

tric 

unit 

(con-

trol 

unit)

IPDM 

E/R

TURN SIGNAL AND HAZARD WARNING LAMPS

LT-237

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Schematic

AKS004KE

TKWA1148E

LT-238

TURN SIGNAL AND HAZARD WARNING LAMPS

Revision; 2004 April

2003 Murano

Wiring Diagram — TURN —

AKS004KF

TKWA0766E

TURN SIGNAL AND HAZARD WARNING LAMPS

LT-239

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TKWA0767E

LT-240

TURN SIGNAL AND HAZARD WARNING LAMPS

Revision; 2004 April

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TKWA0768E

TURN SIGNAL AND HAZARD WARNING LAMPS

LT-241

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Terminals and Reference Value for BCM

AKS004KG

Terminal 

No.

Wire 

color

Signal name

Measuring condition

Reference value

Ignition 
switch

Operation or condition

7

W/B

Battery power supply

OFF

—

Battery voltage

8

B

Ground

ON

—

Approx. 0V

21

G/Y

Turn signal (right)

ON

Combination switch

Turn right ON

22

G/B

Turn signal (left) 

ON

Combination switch

Turn left ON

35

R

Ignition switch (ON)

ON

—

Battery voltage

36

P/B

Ignition switch (ACC)

ACC

—

Battery voltage

40

R/B

Combination switch
Output 2

ON

Lighting, turn, wiper OFF

41

R/G

Combination switch
Output 3

42

P/L

Combination switch
Output 4

43

R

Combination switch
Output 5

47

R/W

Combination switch
Output 1

48

L/W

Combination switch
Input 1

ON

Lighting, turn, wiper OFF

4.5 V or more

49

G/B

Combination switch
Input 2

50

LG/R

Combination switch
Input3

51

G/Y

Combination switch
Input 4

52

LG/B

Combination switch
Input 5

61

G/R

Hazard switch signal

OFF

Hazard switch

ON

Approx. 0V

OFF

Approx. 5V

70

L

CAN

−

H

—

—

—

71

Y

CAN

−

L

—

—

—

72

O

K

−

LINE

—

—

—

SKIA3009J

SKIA3009J

SKIA1119J

LT-242

TURN SIGNAL AND HAZARD WARNING LAMPS

Revision; 2004 April

2003 Murano

How to Proceed With Trouble Diagnosis

AKS004KH

1.

Confirm the symptom or customer complaint.

2.

Understand operation description and function description. Refer to 

LT-213, "System Description"

 .

3.

Conduct pre-inspection. Refer to 

LT-242, "Preliminary Check"

 .

4.

Check symptom and repair or replace the cause of malfunction.

5.

Do turn signal and hazard warning lamps operate normally? If YES: GO TO 6. If NO: GO TO 4.

6.

INSPECTION END

Preliminary Check

AKS004KI

INSPECTION FOR POWER SUPPLY AND GROUND CIRCUIT

1. 

CHECK FUSES

●

Check for blown fuses.

Refer to 

LT-238, "Wiring Diagram — TURN —"

 .

OK or NG

OK

>> GO TO 2.

NG

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to 

PG-

3, "POWER SUPPLY ROUTING CIRCUIT"

 .

2. 

CHECK POWER SUPPLY CIRCUIT

1.

Disconnect BCM connector.

2.

Check voltage between BCM connector and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Check harness for open or short between BCM and fuse.

Unit

Power source

Fuse and fusible link No.

BCM

Battery

F

Ignition switch ON or START position

1

Ignition switch ACC or ON position

6

Terminals

Ignition switch position

(+)

(-)

OFF

ACC

ON

Connector

Terminal 

(Wire color)

E118

7 (W/B)

Ground

Battery 
voltage

Battery 
voltage

Battery 
voltage

M35

35 (R)

0V

0V

Battery 
voltage

M35

36 (P/B)

0V

Battery 
voltage

Battery 
voltage

SKIA3192E

TURN SIGNAL AND HAZARD WARNING LAMPS

LT-243

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3. 

CHECK GROUND CIRCUIT

Check continuity between BCM and ground.

OK or NG

OK

>> INSPECTION END

NG

>> Check harness ground circuit.

CONSULT-II Function

AKS004KJ

CONSULT-II performs the following functions communicating with BCM.

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 ignition switch OFF, connect CONSULT-II and CONSULT-II
CONVERTER to data link connector, then turn ignition switch
ON.

2.

Touch “START (NISSAN BASED VHCL)”.

Terminals

Continuity

Connector

Terminal (Wire color)

Ground

Yes

E118

8 (B)

SKIA3193E

BCM diagnosis 

part

Check item, diagnosis mode

Description

FLASHER

DATA MONITOR

Displays BCM input data in real time.

ACTIVE TEST

Operation of electrical loads can be checked by sending driving signal to them.

PBIB1300E

SKIA3098E

LT-244

TURN SIGNAL AND HAZARD WARNING LAMPS

Revision; 2004 April

2003 Murano

3.

Touch “BCM” on “SELECT SYSTEM” screen.
If “BCM” is not indicated, refer to 

GI-38, "CONSULT-II Data Link

Connector (DLC) Circuit"

 .

4.

 Touch “FLASHER” on “SELECT TEST ITEM” screen.

DATA MONITOR
Operation Procedure

1.

Touch “FLASHER” on “SELECT TEST ITEM” screen.

2.

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

3.

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

4.

Touch “START”.

5.

When “SELECTION FROM MENU” is selected, touch items to be monitored. When “ALL SIGNALS” is
selected, all the items will be monitored.

6.

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

Display Item List

ACTIVE TEST
Operation Procedure

1.

Touch “FLASHER” on “SELECT TEST ITEM” screen.

2.

Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.

3.

Touch item to be tested and check operation of the selected item.

4.

During the operation check, touching “BACK” deactivates the operation.

SKIA6338E

SKIA1922E

All signals

Monitors all the signals.

Selection from menu

Selects and monitors the individual signal.

Monitor item 

Contents

IGN ON SW

“ON/OFF”

Displays “IGN position (ON)/OFF, ACC position (OFF)” judged from the ignition switch 
signal.

HAZARD SW

“ON/OFF”

Displays “Hazard ON (ON)/Hazard OFF (OFF)” status, determined from hazard switch 
signal.

TURN SIGNAL R

“ON/OFF”

Displays “Turn right (ON)/Other (OFF)” status, determined from lighting switch signal.

TURN SIGNAL L

“ON/OFF”

Displays “Turn left (ON)/Other (OFF)” status, determined from lighting switch signal.

TURN SIGNAL AND HAZARD WARNING LAMPS

LT-245

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Display Item List

Turn Signal Lamp Does Not Operate

AKS004KK

1. 

CHECK BULB

Check bulb standard of each turn signal lamp is correct.
OK or NG

OK

>> GO TO 2.

NG

>> Replace turn signal lamp bulb.

2. 

CHECK COMBINATION SWITCH CIRCUIT

Select “BCM” on CONSULT-II. Carry out “BCM C/U” self-diagnosis.

Displayed results of self-diagnosis

Diagnosis system 1 - 5>> Combination switch system malfunction.

Refer to 

LT-257, "Combination Switch Inspection

According to Self-Diagnostic Results"

 .

No malfunction detected>> GO TO 3.

3. 

CHECK COMBINATION SWITCH INPUT SIGNAL

Select “BCM” on CONSULT-II. With “FLASHER” data monitor, Make
sure “TURN SIGNAL R” and “TURN SIGNAL L” turn ON-OFF linked
with operation of turn signal switch.

OK or NG

OK

>> GO TO 4.

NG

>> Replace lighting switch.

4. 

ACTIVE TEST

1.

Select “FLASHER” during active test. Refer to 

LT-244, "ACTIVE TEST"

 .

2.

Make sure “FLASHER RIGHT” and “FLASHER LEFT” operate.

OK or NG

OK

>> Replace BCM. Refer to 

BCS-36, "Removal and Installation of BCM"

 .

NG

>> GO TO 5.

Test item

Description

FLASHER (RIGHT) 

Turn signal lamp (right) can be operated by any ON-OFF operations.

FLASHER (LEFT) 

Turn signal lamp (left) can be operated by any ON-OFF operations.

FLASHER (RIGHT) (CAN) 

Turn signal lamp (right) indicator signal can be output by CAN communication line to gauges 
by any ON-OFF operations.

FLASHER (LEFT) (CAN) 

Turn signal lamp (left) indicator signal can be output by CAN communication line to gauges 
by any ON-OFF operations.

LKIA0073E

When lighting switch is 
TURN RH

: TURN SIGNAL R ON

When lighting switch is 
TURN LH

: TURN SIGNAL L ON

SKIA4499E

LT-246

TURN SIGNAL AND HAZARD WARNING LAMPS

Revision; 2004 April

2003 Murano

5. 

CHECK TURN SIGNAL LAMPS SHORT CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector and all turn signal lamp connectors.

3.

Check continuity (short circuit) between BCM harness connector
M35 terminal 21 (G/Y) (turn RH) and ground.

4.

Check continuity (short circuit) between BCM harness connector
M35 terminal 22 (G/B) (turn LH) and ground.

OK or NG

OK

>> Replace BCM. Refer to 

BCS-36, "Removal and Installation of BCM"

 .

NG

>> Repair harness or connector.

Hazard Warning Lamp Does Not Operate But Turn Signal Lamp Operate

AKS004KL

1. 

CHECK BULB

Make sure bulb standard of each turn signal lamp is correct.
OK or NG

OK

>> GO TO 2.

NG

>> Replace bulb.

2. 

CHECK HAZARD SWITCH INPUT SIGNAL

Select “BCM” on CONSULT-II. With “FLASHER” data monitor to
make sure “HAZARD SW” turns ON-OFF linked with operation of
hazard switch.

OK or NG

OK

>> Replace BCM. Refer to 

BCS-36, "Removal and Installa-

tion of BCM"

 .

NG

>> GO TO 3.

3. 

CHECK HAZARD SWITCH CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector and combination meter connector.

3.

Check continuity BCM harness connector M37 terminal 61 (G/R)
and combination meter harness connector M25 terminal 9 (G/
R).

OK or NG

OK

>> GO TO 4.

NG

>> Repair harness or connector.

Continuity should not exist.

Continuity should not exist.

SKIA1943E

When hazard switch is ON 
position 

: HAZARD SW ON

SKIA4500E

Continuity should exist.

SKIA4520E

TURN SIGNAL AND HAZARD WARNING LAMPS

LT-247

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4. 

CHECK BCM

1.

Connect BCM connector.

2.

Check voltage between BCM harness connector M37 terminal
61 (G/R) and ground.

OK or NG

OK

>> GO TO 5.

NG

>> Replace BCM. Refer to 

BCS-36, "Removal and Installa-

tion of BCM"

 .

5. 

CHECK HAZARD SWITCH

1.

Disconnect hazard switch connector.

2.

Check continuity hazard switch.

OK or NG

OK

>> GO TO 6.

NG

>> Replace hazard switch.

6. 

CHECK HAZARD SWITCH CIRCUIT

1.

Check continuity between hazard switch harness connector
M304 terminal 1 and combination meter harness connector
M302 terminal 34.

2.

Check continuity between hazard switch harness connector
M304 terminal 2 and combination meter harness connector
M302 terminal 33.

OK or NG

OK

>> Replace combination meter.

NG

>> Repair or replace harness.

Turn Signal Indicator Lamp Does Not Operate

AKS004KM

1. 

BULB INSPECTION

Inspect bulb of turn signal indicator lamp in combination meter.

OK or NG

OK

>> Replace combination meter.

NG

>> Replace indicator bulb.

Approx. 5V should exist.

SKIA3928E

Terminal

Condition

Continuity

Hazard switch

1

2

Hazard switch is ON

Yes

Hazard switch is OFF

No

SKIA4521E

Continuity should exist.

Continuity should exist.

SKIA4522E