Nissan Murano Z50 (2003 year). Manual

LT-248

TURN SIGNAL AND HAZARD WARNING LAMPS

Revision; 2004 April

2003 Murano

Bulb Replacement (Front Turn Signal Lamp)

AKS005LG

Refer to

LT-54, "Bulb Replacement"

in "HEADLAMP". (XENON TYPE)

Refer to

LT-100, "Bulb Replacement"

in “HEADLAMP”. (CONVENTIONAL TYPE)

Bulb Replacement (Rear Turn Signal Lamp)

AKS005LH

Refer to

LT-304, "Bulb Replacement"

in "REAR COMBINATION LAMP".

Removal and Installation of Front Turn Signal Lamp

AKS005LI

Refer to

LT-55, "Removal and Installation"

in "HEADLAMP". (XENON TYPE)

Refer to

LT-101, "Removal and Installation"

in “HEADLAMP”. (CONVENTIONAL TYPE)

Removal and Installation of Rear Turn Signal Lamp

AKS005LJ

Refer to

LT-304, "Removal and Installation"

in "REAR COMBINATION LAMP".

LIGHTING AND TURN SIGNAL SWITCH

LT-249

Revision; 2004 April

2003 Murano

LIGHTING AND TURN SIGNAL SWITCH

PFP:25540

Removal and Installation

AKS005LK

REMOVAL

Remove instrument driver lower panel and steering column
cover. Refer to

IP-10, "INSTRUMENT PANEL ASSEMBLY"

"IP" section.

While pressing pawls in direction as shown in the figure, pull
lighting and turn signal switch toward driver door and disconnect
from the base.

INSTALLATION

Install in the reverse order of removal.

PKIA2526E

COMBINATION SWITCH

LT-251

Revision; 2004 April

2003 Murano

COMBINATION SWITCH

PFP:25567

Combination Switch Reading Function

AKS004KV

Description

●

BCM reads combination switch (light, wiper washer, turn signal) status, and controls various electrical
components according to the results.

●

BCM reads information of 20 switches and 5 diagnostic results by combining five output terminals
(OUTPUT 1 - 5) and five input terminals (INPUT 1 - 5).

Operation description

●

BCM outputs battery voltage from input terminals (INPUT 1 - 5) all the time. At the same time output ter-
minals (OUTPUT 1 - 5) activate transistors in turn, and allow current to flow. At this time, if any (1 or
more) of the switches are ON, the input terminals corresponding to these switches detect current flow,
and the interface of BCM detects the condition. Then BCM judges switches are ON.

BCM - Operation table of combination switches

●

BCM reads operation status of combination switches by the combination shown in the table.

NOTE:
Dual switches are set for head lamps.

Example (When fog lamp switch is turned ON.)

SKIA6458E

SKIA6459E

LT-252

COMBINATION SWITCH

Revision; 2004 April

2003 Murano

●

When fog lamp switch is turned ON, contact in combination switch turns ON. At this time if OUTPUT 4
transistor is activated, BCM detects current flow in INPUT 5.

●

When OUTPUT 4 transistor is ON, BCM detects current flow in INPUT 5, and judges fog lamp switch is
ON. Then BCM sends fog lamp ON signal to IPDM E/R using CAN communication.

●

When OUTPUT 4 transistor is activated again, BCM detects current flow in INPUT 5, and confirms fog
lamp switch is continuously ON.

NOTE:
Each OUTPUT terminal transistor is activated at 10 ms intervals. Therefore, after a switch is turned ON,
the electrical loads are activated with a time delay, but this time delay is so short that it cannot be noticed.

Operation mode

●

Combination switch reading function has operation modes shown below.

Normal mode

●

When BCM is not in sleep mode, each OUTPUT (1 - 5) terminal turns ON-OFF at 10 ms intervals.

Sleep mode

●

When BCM is in sleep mode, transistors of OUTPUT 1 and 2 stop the output, and BCM enters low-cur-
rent-consumption mode. OUTPUTS (3 - 5) turn ON-OFF at 60 ms intervals, and receive lighting switch
input only.

SKIA6473E

SKIA3097E

COMBINATION SWITCH

LT-253

Revision; 2004 April

2003 Murano

CONSULT-II Function

AKS004KW

CONSULT-II performs the following functions communicating with BCM.

CONSULT-II BASIC OPERATION

CAUTION:

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

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

Touch “START(NISSAN BASED VHCL)”.

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

GI-38, "CONSULT-II Data Link

Connector (DLC) Circuit"

Select the desired part to be diagnosed on “SELECT TEST
ITEM” screen.

BCM diagnosis part

Check item, diagnosis mode

Description

Combination switch

DATA MONITOR

Displays BCM input data in real time.

PBIB1300E

SKIA3098E

SKIA6338E

SKIA1922E

LT-254

COMBINATION SWITCH

Revision; 2004 April

2003 Murano

DATA MONITOR
Operation Procedure

Touch “COMB SW” on “SELECT TEST ITEM” screen.

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

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

Touch “START”.

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

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

All signals

Monitors all the signals.

Selection from menu

Selects and monitors individual signal.

COMBINATION SWITCH

LT-255

Revision; 2004 April

2003 Murano

Display Item List

Monitor item name

“OPERATION OR UNIT”

Contents

TAIL LAMP SW

“ON/OFF”

Displays status (lighting switch 1st position: ON/Others: OFF) of lighting switch judged from
lighting switch signal.

HEAD LAMP SW 1

“ON/OFF”

Displays “Headlamp switch 1 (ON)/Other (OFF)” status, determined from lighting switch signal.

HEAD LAMP SW 2

“ON/OFF”

Displays status (headlamp switch 2: ON/Others: OFF) of headlamp switch 2 judged from light-
ing switch signal.

HI BEAM SW

“ON/OFF”

Displays status (high beam switch: ON/Others: OFF) of high beam switch judged from lighting
switch signal.

PASSING SW

“ON/OFF”

Displays status (flash-to-pass switch: ON/Others: OFF) of flash-to-pass switch judged from
lighting switch signal.

AUTO LIGHT SW

“ON/OFF”

Displays status of the lighting switch as judged from the lighting switch signal. (AUTO position:
ON/Other than AUTO position: OFF)

FR FOG SW

“ON/OFF”

Displays status (front fog lamp switch: ON/Others: OFF) of front fog lamp switch judged from
lighting switch signal.

FR WIPER HI

“ON/OFF”

Displays “Front Wiper HI (ON)/Other (OFF)” status, determined from wiper switch signal.

FR WIPER LOW

“ON/OFF”

Displays “Front Wiper LOW (ON)/Other (OFF)” status, determined from wiper switch signal.

FR WIPER INT

“ON/OFF”

Displays “Front Wiper INT (ON)/Other (OFF)” status, determined from wiper switch signal.

INT VOLUME

[1 - 7]

Displays intermittent operation knob setting (1 - 7), determined from wiper switch signal.

RR WIPER ON

“ON/OFF”

Displays “Rear Wiper Switch (ON)/Other (OFF)” status, determined from wiper switch signal.

RR WIPER INT

“ON/OFF”

Displays “Rear Wiper INT (ON)/Other (OFF)” status, determined from wiper switch signal.

FR WASHER SW

“ON/OFF”

Displays “Front Washer Switch (ON)/Other (OFF)” status, determined from wiper switch signal.

RR WASHER SW

“ON/OFF”

Displays “Rear Washer Switch (ON)/Other (OFF)” status, determined from wiper 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.

COMBINATION SWITCH

LT-257

Revision; 2004 April

2003 Murano

Combination Switch Inspection According to Self-Diagnostic Results

AKS004KY

SELF-DIAGNOSTIC RESULT CHECK

CAUTION:

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

Connect to CONSULT–II, and select “BCM” on “SELECT SYSTEM” screen.

Select “BCM control unit ” on “SELECT WORK ITEM”screen, and select “SELF-DIAG RESULTS”.

Check display content in self-diagnostic results.

CONSULT-II
display code

Self-diagnostic

result content

Malfunctioning switch system

Detection conditions

Possible causes

B2049

OPEN
DETECT 1

In the case you are not able to turn on the switch by pattern
1 or 2.
Pattern 1

●

FRONT WIPER HI

●

Intermittent control 1

●

RR WIPER INT

●

Intermittent control 2

Pattern 2

●

FR WASHER

●

FRONT WIPER LOW

●

TURN LH

●

TURN RH

BCM terminal No.
48 (Input 1) does
not change.
(Open circuit in
diagnosis 1 system
line or open mal-
function in output 1
transistor.)

●

Harness
between BCM
and combina-
tion switch

●

Wiper switch

●

BCM

B2050

OPEN
DETECT 2

In the case you are not able to turn on the switch by pattern
1 or 2.
Pattern 1

●

FR WASHER

●

RR WASHER

●

Intermittent control 3

●

RR WIPER LOW

Pattern 2

●

FRONT WIPER HI

●

FRONT WIPER INT

●

PASSING

●

HEAD LAMP 1

BCM terminal No.
49 (Input 2) does
not change.
(Open circuit in
diagnosis 2 system
line or open mal-
function in output 2
transistor.)

●

Harness
between BCM
and combina-
tion switch

●

Wiper switch

●

BCM

B2051

OPEN
DETECT 3

In the case you are not able to turn on the switch by pattern
1 or 2.
Pattern 1

●

FRONT WIPER LOW

●

FRONT WIPER INT

●

AUTO LIGHT

Pattern 2

●

Intermittent control 1

●

RR WASHER

●

HEAD LAMP 2

●

HI BEAM

BCM terminal No.
50 (Input 3) does
not change.
(Open circuit in
diagnosis 3 system
line or open mal-
function in output 3
transistor.)

●

Harness
between BCM
and combina-
tion switch

●

Wiper switch
(Front wiper
Lo, INT)

●

BCM

LT-258

COMBINATION SWITCH

Revision; 2004 April

2003 Murano

Display content

No malfunction>>INSPECTION END
Malfunction in diagnosis system>>GO TO 2.
Malfunction in headlamp switch system>>Replace lighting switch.

B2052

OPEN
DETECT 4

In the case you are not able to turn on the switch by pattern
1 or 2.
Pattern 1

●

TURN LH

●

PASSING

●

HEAD LAMP 2

●

FRONT FOG

Pattern 2

●

RR WIPER INT

●

Intermittent control 3

●

AUTO LIGHT

●

Lighting switch 1st position

BCM terminal No.
51 (Input 4) does
not change.
(Open circuit in
diagnosis 4 system
line or open mal-
function in output 4
transistor.)

●

Harness
between BCM
and combina-
tion switch

●

Lighting
switch

●

BCM

B2053

OPEN
DETECT 5

In the case you are not able to turn on the switch by pattern
1 or 2.
Pattern 1

●

TURN RH

●

HEAD LAMP 1

●

HI BEAM

●

TAIL LAMP

Pattern 2

●

Intermittent control 2

●

RR WIPER LOW

●

FR FOG

BCM terminal No.
52 (Input 5) does
not change.
(Open circuit in
diagnosis 5 system
line or open mal-
function in output 5
transistor.)

●

Harness
between BCM
and combina-
tion switch

●

Lighting
switch

●

BCM

B2054

HEADLAMP 1
SW NG

HEAD LAMP 1 malfunction

Headlamp 1 switch
OFF
Headlamp 2 switch
ON

Lighting switch

B2055

HEADLAMP 2
SW NG

HEAD LAMP 2 malfunction

Headlamp 1 switch
ON
Headlamp 2 switch
OFF

Lighting switch

CONSULT-II
display code

Self-diagnostic

result content

Malfunctioning switch system

Detection conditions

Possible causes

COMBINATION SWITCH

LT-259

Revision; 2004 April

2003 Murano

CHECK HARNESS

Disconnect BCM connector and combination switch connector.

Check continuity between BCM harness connector of suspect system and combination switch harness
connector terminals.

OK or NG

>> GO TO 3.

>> Repair harness.

CHECK 1: COMBINATION SWITCH

Connect combination switch connector.

Check continuity for combination switch harness connector between input and output terminals of applica-
ble malfunctioning system.

OK or NG

>> GO TO 4.

>> GO TO 6.

Self-

diagnos-

tic result

content

Terminals

Continuity

BCM Combination

switch

Connector

Terminal

(Wire color)

Connector

Terminal

(Wire

color)

OPEN

DETECT

M36

Input 1

48 (L/W)

M29

1 (L/W)

Yes

Output 1

47 (R/W)

6 (R/W)

OPEN

DETECT

Input 2

49 (G/B)

2 (G/B)

Output 2

40 (R/B)

7 (R/B)

OPEN

DETECT

Input 3

50 (LG/R)

3 (LG/R)

Output 3

41 (R/G)

10 (R/G)

OPEN

DETECT

Input 4

51 (G/Y)

4 (G/Y)

Output 4

42 (P/L)

9 (P/L)

OPEN

DETECT

Input 5

52 (LG/B)

5 (LG/B)

Output 5

43 (R)

8 (R)

SKIA1154E

Self-diagnostic

result content

Combination switch

Continuity

Connector

Input Output

Terminal

(Wire color)

Terminal

(Wire color)

OPEN

DETECT 1

M29

1 (L/W)

6 (R/W)

Yes

OPEN

DETECT 2

2 (G/B)

7 (R/B)

OPEN

DETECT 3

3 (LG/R)

10 (R/G)

OPEN

DETECT 4

4 (G/Y)

9 (P/L)

OPEN

DETECT 5

5 (LG/B)

8 (R)

SKIA4000E

LT-260

COMBINATION SWITCH

Revision; 2004 April

2003 Murano

CHECK BCM INPUT TERMINAL VOLTAGE

Connect BCM connector, and check BCM input terminal voltage of
suspect system.

OK or NG

>> GO TO 4.

>> Replace BCM.

CHECK BCM OUTPUT TERMINAL

Connect combination switch connector, and check BCM output ter-
minal voltage waveform of applicable malfunctioning system.

OK or NG

>> Combination switch malfunction, go to 5.

>> Replace BCM.

CHECK 2: COMBINATION SWITCH

Following the table below, check switches by procedure of appropriate malfunctioning system.

Self-diag-

nostic result

content

Terminals

Voltage

Connector

Terminal (Wire color)

OPEN

DETECT 1

M36

Input 1

48 (L/W)

4.5V or more

OPEN

DETECT 2

Input 2

49 (G/B)

OPEN

DETECT 3

Input 3

50 (LG/R)

OPEN

DETECT 4

Input 4

51 (G/Y)

OPEN

DETECT 5

Input 5

52 (LG/B)

SKIA1155E

Self-diag-

nostic result

content

Terminals

Connector

Terminal (Wire color)

OPEN

DETECT 1

M36

Output 1

47 (R/W)

OPEN

DETECT 2

Output 2

40 (R/B)

OPEN

DETECT 3

Output 3

41 (R/G)

OPEN

DETECT 4

Output 4

42 (P/L)

OPEN

DETECT 5

Output 5

43 (R)

SKIA1156E

Self-diag-

nostic result

content

Procedure

OPEN

DETECT 1

Wiper

switch

replace-

ment

Confirm self-

diagnostic

results again.

INSPECTION

END

—

Confirm symp-

tom again.

COMBINATION SWITCH

LT-261

Revision; 2004 April

2003 Murano

>> INSPECTION END

OPEN

DETECT 2

Wiper

switch

replace-

ment

Confirm self-

diagnostic

results again.

INSPECTION

END

—

Confirm symp-

tom again.

OPEN

DETECT 3

Wiper

switch

replace-

ment

Confirm self-

diagnostic

results again.

INSPECTION

END

Confirm

self-diag-

nostic

results

again.

INSPEC-
TION END

Confirm

self-diag-

nostic

results

again.

INSPEC-

TION END

Lighting switch
replacement

Switch base
replacement

Confirm

symptom

again.

OPEN

DETECT 4

Lighting

switch

replace-

ment

Confirm self-

diagnostic

results again.

INSPECTION

END

Confirm

self-diag-

nostic

results

again.

INSPEC-
TION END

Confirm

self-diag-

nostic

results

again.

INSPEC-

TION END

Wiper switch
replacement

Switch base
replacement

Confirm

symptom

again.

OPEN

DETECT 5

Lighting

switch

replace-

ment

Confirm self-

diagnostic

results again.

INSPECTION

END

Confirm

self-diag-

nostic

results

again.

INSPEC-
TION END

Confirm

self-diag-

nostic

results

again.

INSPEC-

TION END

Wiper switch
replacement

Switch base
replacement

Confirm

symptom

again.

Self-diag-

nostic result

content

Procedure

LT-262

COMBINATION SWITCH

Revision; 2004 April

2003 Murano

Malfunctioning Operation of Lamps and Wipers

AKS004KZ

SYMPTOM CHECK

Confirm symptom, and confirm malfunctioning system No. from the table below.

>> GO TO 2.

Malfunctioning

system

Symptom

Possible causes

When the ignition switch is ON position

●

LH Turn signal lamp and RH Turn signal lamp on

●

Front wiper on (LO speed)

●

Short between the following harness and ground

–

Between BCM INPUT 1 terminal and combination switch

–

Between combination switch and BCM OUTPUT 1

●

BCM

●

Combination switch

When the ignition switch is ON position

●

Headlamp on (HI and LO)

●

Front wiper on (HI speed)

●

Short between the following harness and ground

–

Between BCM INPUT 2 terminal and combination switch

–

Between combination switch and BCM OUTPUT 2

●

BCM

●

Combination switch

When the ignition switch is OFF position

●

Headlamp on (HI and LO)

When the ignition switch is ON position

●

Headlamp on (HI and LO)

●

Rear wiper ON

●

Short between the following harness and ground

–

Between BCM INPUT 3 terminal and combination switch

–

Between combination switch and BCM OUTPUT 3

●

BCM

●

Combination switch

When the ignition switch is OFF position

●

Headlamp on (HI and LO)

When the ignition switch is ON position

●

Parking lamp and tail lamp on

●

Headlamp on at certain degrees of brightness

●

Short between the following harness and ground

–

Between BCM INPUT 4 terminal and combination switch

–

Between combination switch and BCM OUTPUT 4

●

BCM

●

Combination switch

When the ignition switch is OFF position

●

Parking lamp and tail lamp on

When the ignition switch is ON position

●

Front fog lamp on

●

Rear wiper ON

●

Short between the following harness and ground

–

Between BCM INPUT 5 terminal and combination switch

–

Between combination switch and BCM OUTPUT 5

●

BCM

●

Combination switch

When the ignition switch is OFF position

●

Front fog lamp on

COMBINATION SWITCH

LT-263

Revision; 2004 April

2003 Murano

CHECK HARNESS

Disconnect BCM connector and combination switch connector.

Check continuity between BCM harness connector of Malfunctioning system and ground.

OK or NG

>> GO TO 3.

>> Repair harness.

CHECK BCM INPUT TERMINAL VOLTAGE

Connect BCM connector. Check voltage between BCM input termi-
nal of applicable malfunctioning system and ground.

OK or NG

>> Combination switch malfunction, go to 4.

>> Replace BCM.

CHECK COMBINATION SWITCH

Following the table below, check combination switch.

>> INSPECTION END

Malfunctioning

system

Terminals

Continuity

Connector

Terminal (Wire color)

M36

Input 1

48 (L/W)

Ground

Output 1

47 (R/W)

Input 2

49 (G/B)

Output 2

40 (R/B)

Input 3

50 (LG/R)

Output 3

41 (R/G)

Input 4

51 (G/Y)

Output 4

42 (P/L)

Input 5

52 (LG/B)

Output 5

43 (R)

SKIA1157E

Malfunctioning

system

Terminals

Voltage

(+)

(-)

Connector

Terminal (Wire color)

M36

48 (L/W)

Ground

4.5V or more

49 (G/B)

50 (LG/R)

51 (G/Y)

52 (LG/B)

SKIA1155E

Procedure

Lighting

switch

replacement

Confirm self-

diagnostic

results again.

INSPECTION

END

Confirm self-

diagnostic

results again.

INSPEC-

TION END

Confirm self-

diagnostic

results again.

INSPEC-

TION END

Wiper switch

replacement

Replacement

of switch

base

Confirm

symptom

again.

Nissan Murano Z50 (2003 year). Manual - part 235