Nissan Murano Z50 (2003 year). Manual — part 235
LT-248
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision; 2004 April
2003 Murano
Bulb Replacement (Front Turn Signal Lamp)
AKS005LG
Refer to
in "HEADLAMP". (XENON TYPE)
Refer to
in “HEADLAMP”. (CONVENTIONAL TYPE)
Bulb Replacement (Rear Turn Signal Lamp)
AKS005LH
Refer to
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
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LIGHTING AND TURN SIGNAL SWITCH
PFP:25540
Removal and Installation
AKS005LK
REMOVAL
1.
Remove instrument driver lower panel and steering column
cover. Refer to
IP-10, "INSTRUMENT PANEL ASSEMBLY"
in
"IP" section.
2.
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
LT-250
HAZARD SWITCH
Revision; 2004 April
2003 Murano
HAZARD SWITCH
PFP:25290
Removal and Installation
AKS005LL
REMOVAL
1.
Remove meter lid. Refer to
DI-30, "Disassembly and Assembly
in “DI” section.
2.
Disconnect hazard switch connector.
3.
Press pawl on reverse side and remove the hazard switch.
INSTALLATION
Install in the reverse order of removal.
PKIA2527E
COMBINATION SWITCH
LT-251
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COMBINATION SWITCH
PFP:25567
Combination Switch Reading Function
AKS004KV
1.
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).
2.
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.
3.
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.
4.
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.
5.
Operation mode
●
Combination switch reading function has operation modes shown below.
a.
Normal mode
●
When BCM is not in sleep mode, each OUTPUT (1 - 5) terminal turns ON-OFF at 10 ms intervals.
b.
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
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Revision; 2004 April
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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.
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)”.
3.
Touch “BCM” on “SELECT SYSTEM” screen.
If “BCM” is not indicated, refer to
.
4.
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
1.
Touch “COMB SW” 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 signals will be monitored.
6.
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
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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.
LT-256
COMBINATION SWITCH
Revision; 2004 April
2003 Murano
Wiring Diagram—COMBSW—
AKS004KX
TKWA0736E
COMBINATION SWITCH
LT-257
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Combination Switch Inspection According to Self-Diagnostic Results
AKS004KY
1.
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.
1.
Connect to CONSULT–II, and select “BCM” on “SELECT SYSTEM” screen.
2.
Select “BCM control unit ” on “SELECT WORK ITEM”screen, and select “SELF-DIAG RESULTS”.
3.
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
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2.
CHECK HARNESS
1.
Disconnect BCM connector and combination switch connector.
2.
Check continuity between BCM harness connector of suspect system and combination switch harness
connector terminals.
OK or NG
OK
>> GO TO 3.
NG
>> Repair harness.
3.
CHECK 1: COMBINATION SWITCH
1.
Connect combination switch connector.
2.
Check continuity for combination switch harness connector between input and output terminals of applica-
ble malfunctioning system.
OK or NG
OK
>> GO TO 4.
NG
>> GO TO 6.
Self-
diagnos-
tic result
content
Terminals
Continuity
BCM Combination
switch
Connector
Terminal
(Wire color)
Connector
Terminal
(Wire
color)
OPEN
DETECT
1
M36
Input 1
48 (L/W)
M29
1 (L/W)
Yes
Output 1
47 (R/W)
6 (R/W)
OPEN
DETECT
2
Input 2
49 (G/B)
2 (G/B)
Output 2
40 (R/B)
7 (R/B)
OPEN
DETECT
3
Input 3
50 (LG/R)
3 (LG/R)
Output 3
41 (R/G)
10 (R/G)
OPEN
DETECT
4
Input 4
51 (G/Y)
4 (G/Y)
Output 4
42 (P/L)
9 (P/L)
OPEN
DETECT
5
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
4.
CHECK BCM INPUT TERMINAL VOLTAGE
Connect BCM connector, and check BCM input terminal voltage of
suspect system.
OK or NG
OK
>> GO TO 4.
NG
>> Replace BCM.
5.
CHECK BCM OUTPUT TERMINAL
Connect combination switch connector, and check BCM output ter-
minal voltage waveform of applicable malfunctioning system.
OK or NG
OK
>> Combination switch malfunction, go to 5.
NG
>> Replace BCM.
6.
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
1
2
3
4
5
6
7
OPEN
DETECT 1
Wiper
switch
replace-
ment
Confirm self-
diagnostic
results again.
OK
INSPECTION
END
—
NG
Confirm symp-
tom again.
COMBINATION SWITCH
LT-261
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>> INSPECTION END
OPEN
DETECT 2
Wiper
switch
replace-
ment
Confirm self-
diagnostic
results again.
OK
INSPECTION
END
—
NG
Confirm symp-
tom again.
OPEN
DETECT 3
Wiper
switch
replace-
ment
Confirm self-
diagnostic
results again.
OK
INSPECTION
END
Confirm
self-diag-
nostic
results
again.
OK
INSPEC-
TION END
Confirm
self-diag-
nostic
results
again.
OK
INSPEC-
TION END
NG
Lighting switch
replacement
NG
Switch base
replacement
NG
Confirm
symptom
again.
OPEN
DETECT 4
Lighting
switch
replace-
ment
Confirm self-
diagnostic
results again.
OK
INSPECTION
END
Confirm
self-diag-
nostic
results
again.
OK
INSPEC-
TION END
Confirm
self-diag-
nostic
results
again.
OK
INSPEC-
TION END
NG
Wiper switch
replacement
NG
Switch base
replacement
NG
Confirm
symptom
again.
OPEN
DETECT 5
Lighting
switch
replace-
ment
Confirm self-
diagnostic
results again.
OK
INSPECTION
END
Confirm
self-diag-
nostic
results
again.
OK
INSPEC-
TION END
Confirm
self-diag-
nostic
results
again.
OK
INSPEC-
TION END
NG
Wiper switch
replacement
NG
Switch base
replacement
NG
Confirm
symptom
again.
Self-diag-
nostic result
content
Procedure
1
2
3
4
5
6
7
LT-262
COMBINATION SWITCH
Revision; 2004 April
2003 Murano
Malfunctioning Operation of Lamps and Wipers
AKS004KZ
1.
SYMPTOM CHECK
Confirm symptom, and confirm malfunctioning system No. from the table below.
>> GO TO 2.
Malfunctioning
system
Symptom
Possible causes
1
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
2
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)
3
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)
4
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
5
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
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2.
CHECK HARNESS
1.
Disconnect BCM connector and combination switch connector.
2.
Check continuity between BCM harness connector of Malfunctioning system and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair harness.
3.
CHECK BCM INPUT TERMINAL VOLTAGE
Connect BCM connector. Check voltage between BCM input termi-
nal of applicable malfunctioning system and ground.
OK or NG
OK
>> Combination switch malfunction, go to 4.
NG
>> Replace BCM.
4.
CHECK COMBINATION SWITCH
Following the table below, check combination switch.
>> INSPECTION END
Malfunctioning
system
Terminals
Continuity
Connector
Terminal (Wire color)
1
M36
Input 1
48 (L/W)
Ground
No
Output 1
47 (R/W)
2
Input 2
49 (G/B)
Output 2
40 (R/B)
3
Input 3
50 (LG/R)
Output 3
41 (R/G)
4
Input 4
51 (G/Y)
Output 4
42 (P/L)
5
Input 5
52 (LG/B)
Output 5
43 (R)
SKIA1157E
Malfunctioning
system
Terminals
Voltage
(+)
(-)
Connector
Terminal (Wire color)
1
M36
48 (L/W)
Ground
4.5V or more
2
49 (G/B)
3
50 (LG/R)
4
51 (G/Y)
5
52 (LG/B)
SKIA1155E
Procedure
1
2
3
4
5
6
7
Lighting
switch
replacement
Confirm self-
diagnostic
results again.
OK
INSPECTION
END
Confirm self-
diagnostic
results again.
OK
INSPEC-
TION END
Confirm self-
diagnostic
results again.
OK
INSPEC-
TION END
NG
Wiper switch
replacement
NG
Replacement
of switch
base
NG
Confirm
symptom
again.
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