Page 81 of 172
TURN SIGNAL AND HAZARD WARNING LAMPS
LT-81
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Revision: 2006 November2007 350Z
Turn Signal Lamp Does Not OperateNKS004YD
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 INPUT SIGNAL
CONSULT-III DATA MONITOR
1. Select "TURN SIGNAL R" and "TURN SIGNAL L" of BCM data monitor item.
2. With operating the lighting switch, check the monitor status.
CHECK COMBINATION SWITCH
Refer to LT- 9 2 , "
Combination Switch Inspection" .
OK or NG
OK >> GO TO 3.
NG >> Check combination switch (lighting switch). Refer to LT- 9 2 , "
Combination Switch Inspection" .
3. ACTIVE TEST
CONSULT-III ACTIVE TEST
1. Select "FLASHER" of BCM active test item.
2. With operating the test item, check the turn signal lamp operation.
GO TO 4
OK or NG
OK >> Replace BCM. Refer to BCS-17, "Removal and Installation of BCM" .
NG >> GO TO 4.
4. CHECK 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
and ground.
OK or NG
OK >> Replace BCM if turn signal lamps does not work after
setting the connector again. Refer to BCS-17, "
Removal
and Installation of BCM" .
NG >> Repair harness or connector.When lighting switch is
TURN RH position: TURN SIGNAL R ON
When lighting switch is
TURN LH position: TURN SIGNAL L ON
Turn signal lamp should operate.
BCM connector Terminal
GroundContinuity
RH
M9146
No
LH 45
PKIB5067E
Page 84 of 172
LT-84
LIGHTING AND TURN SIGNAL SWITCH
Revision: 2006 November2007 350Z
LIGHTING AND TURN SIGNAL SWITCHPFP:25540
Removal and InstallationNKS004YK
REMOVAL
1. Remove steering column lower cover. Refer to IP-10, "INSTRU-
MENT PANEL ASSEMBLY" .
2. Remove column upper cover and combination meter assembly.
Refer to IP-10, "
INSTRUMENT PANEL ASSEMBLY" .
3. 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
Installation is the reverse order of removal.
PKIB4968E
Page 87 of 172
COMBINATION SWITCH
LT-87
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Combination Switch Reading FunctionNKS004YN
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
Terminals and Reference Values for BCMNKS004YO
CAUTION:
Check combination switch system terminal waveform under the loaded condition with lighting
switch, turn signal switch and wiper switch OFF not to be fluctuated by overloaded.
Turn wiper dial position to 4 except when checking waveform or voltage of wiper dial position.
Wiper dial position can be confirmed on CONSULT-III. Refer to LT- 9 1 , "
DATA MONITOR" .
Te r -
minal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
2GYCombination
switch input 5ONLighting, turn,
wiper switch
(Wiper inter-
mittent dial
position 4)OFF Approx. 0 V
Any of the conditions below
Lighting switch 1ST
Lighting switch HIGH beam
(Operates only HIGH beam
switch)
Turn signal switch to right
Approx. 1.0 V
Lighting switch 2ND
Approx. 2.0 V
3L/WCombination
switch input 4ONLighting, turn,
wiper switch
(Wiper inter-
mittent dial
position 4)OFF Approx. 0 V
Any of the conditions below
Lighting switch 2ND
Lighting switch PASSING
(Operates only PASSING
switch)
Turn signal switch to left
Approx. 1.0 V
4PU/WCombination
switch input 3ONLighting, turn,
wiper switch
(Wiper inter-
mittent dial
position 4)OFF Approx. 0 V
Any of the conditions below
Front wiper switch MIST
Front wiper switch INT
Front wiper switch LO
Approx. 1.0 V
PKIB4959J
PKIB4953J
PKIB4959J
PKIB4959J
Page 88 of 172
LT-88
COMBINATION SWITCH
Revision: 2006 November2007 350Z
5Y/RCombination
switch input 2ONLighting, turn,
wiper switchOFF
(Wiper intermittent dial position 4)Approx. 0 V
Any of the conditions below
Front washer switch
Rear washer switch
Wiper intermittent dial position 1
Wiper intermittent dial position 5
Wiper intermittent dial position 6
Approx. 1.0 V
Rear wiper switch ON
(Wiper intermittent dial position 4)
Approx. 0.8 v
6Y/GCombination
switch input 1ONLighting, turn,
wiper switchOFF
(Wiper intermittent dial position 4)Approx. 0 V
Any of the conditions below
Front wiper switch HI
Rear wiper switch INT
Wiper intermittent dial position 3
Approx. 1.0 V
Any of the conditions below
Wiper intermittent dial position 1
Wiper intermittent dial position 2
Approx. 1.7 V
Any of the conditions below
Wiper intermittent dial position 6
Wiper intermittent dial position 7
Approx. 0.8 V
11 L GIgnition switch
(ACC)ACC — Battery voltage Te r -
minal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
PKIB4959J
PKIB4955J
PKIB4959J
PKIB4952J
PKIB4955J
Page 89 of 172
COMBINATION SWITCH
LT-89
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32 G/BCombination
switch output 5ONLighting, turn,
wiper switchOFF
(Wiper intermittent dial position 4)
Approx. 7.2 V
Any of the conditions below
Wiper intermittent dial position 1
Wiper intermittent dial position 2
Wiper intermittent dial position 6
Wiper intermittent dial position 7
Approx. 1.0 V
33 GCombination
switch output 4ONLighting, turn,
wiper switchOFF
(Wiper intermittent dial position 4)
Approx. 7.2 V
Any of the conditions below
Lighting switch 1ST (The same
result with lighting switch 2ND)
Rear wiper switch INT
Wiper intermittent dial position 1
Wiper intermittent dial position 5
Wiper intermittent dial position 6
Approx. 1.2 V
34 W/LCombination
switch output 3ONLighting, turn,
wiper switchOFF
(Wiper intermittent dial position 4)
Approx. 7.2 V
Any of the conditions below
Lighting switch 2ND
Lighting switch HI beam
(Operates only HI beam switch)
Rear washer switch
Wiper intermittent dial position 1
Wiper intermittent dial position 2
Wiper intermittent dial position 3Approx. 1.2 V Te r -
minal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
PKIB4960J
PKIB4956J
PKIB4960J
PKIB4958J
PKIB4960J
PKIB4958J
Page 90 of 172
LT-90
COMBINATION SWITCH
Revision: 2006 November2007 350Z
35 W/GCombination
switch output 2ONLighting, turn,
wiper switch
(Wiper inter-
mittent dial
position 4)OFF
Approx. 7.2 V
Any of the conditions below
Lighting switch 2ND
Lighting switch PASSING
(Operates only PASSING
switch)
Front wiper switch INT
Front wiper switch HI
Approx. 1.2 V
36 W/RCombination
switch output 1ONLighting, turn,
wiper switch
(Wiper inter-
mittent dial
position 4)OFF
Approx. 7.2 V
Any of the conditions below
Turn signal switch to right
Turn signal switch to left
Front wiper switch MIST
Front wiper switch LO
Front washer switch
Approx. 1.2 V
38 W/LIgnition switch
(ON) ON — Battery voltage
39 L CAN − H— — —
40 P CAN − L— — —
42 GYBattery power
supplyOFF — Battery voltage
52 B Ground ON — Approx. 0V
55 RBattery power
supplyOFF — Battery voltage Te r -
minal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
PKIB4960J
PKIB4958J
PKIB4960J
PKIB4958J
Page 91 of 172
COMBINATION SWITCH
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Revision: 2006 November2007 350Z
CONSULT-III Function (BCM)NKS004YP
CONSULT-III can display each diagnostic item using the diagnostic test mode shown following.
DATA MONITOR
Display Item List
NOTE:
This item is displayed, but cannot be monitored.BCM diagnosis part Diagnosis mode Description
COMB SW DATA MONITOR Displays BCM input data in real time.
Monitor item name
“OPERATION OR UNIT”Contents
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.
HI BEAM SW “ON/OFF”Displays status (high beam switch: ON/Others: OFF) of high beam switch judged from lighting
switch signal.
HEAD LAMP SW 1 “ON/OFF”Displays status (headlamp switch 2: ON/Others: OFF) of headlamp switch 1 judged from lighting
switch signal.
HEAD LAMP SW 2 “ON/OFF”Displays status (headlamp switch 2: ON/Others: OFF) of headlamp switch 2 judged from lighting
switch signal.
LIGHT SW 1ST “ON/OFF”Displays status (lighting switch 1ST or 2ND position: ON/Others: OFF) of lighting 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.
FR FOG SW
NOTE“ON/OFF” —
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.
FR WASHER SW “ON/OFF” Displays “Front Washer Switch (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 (ON)/Other (OFF)” status as judged from wiper switch signal.
RR WIPER INT “ON/OFF” Displays “rear Wiper INT (ON)/Other (OFF)” status as judged from wiper switch signal.
RR WASHER SW “ON/OFF” Displays “rear Washer Switch (ON)/Other (OFF)” status as judged from wiper switch signal.
Page 92 of 172
LT-92
COMBINATION SWITCH
Revision: 2006 November2007 350Z
Combination Switch InspectionNKS004YQ
1. SYSTEM CHECK
Referring to table below, check which system malfunctioning switch belongs to.
>> Check the system to which malfunctioning switch belongs, and GO TO 2.
2. SYSTEM CHECK
With CONSULT-III
1. Select "COMBI SW" of BCM data monitor item.
2. Confirm that other switches in malfunctioning system operate normally.
Example: When the HI BEAM switch is malfunctioning, confirm that “TURN RH”, “HEAD LAMP 1” and
“LIGHT SW 1 ST” in System 5, to which the HI BEAM switch belongs, turn ON-OFF normally.
Without CONSULT-III
Operating combination switch, and confirm that other switches in malfunctioning system operate normally.
Example: When the HI BEAM switch is malfunctioning, confirm that “TURN RH”, “HEAD LAMP 1” and “LIGHT
SW 1 ST” in System 5, to which HI BEAM switch belongs, turn ON-OFF normally.
Check results
Other switches in malfunctioning system operate normally.>>Replace lighting switch or wiper switch.
Other switches in malfunctioning system do not operate normally.>>GO TO 3.
System 1 System 2 System 3 System 4 System 5
— FR WASHER FR WIPER LO TURN LH TURN RH
FR WIPER HI — FR WIPER INT PASSING HEAD LAMP 1
INT VOLUME 1 RR WASHER — HEAD LAMP 2 HI BEAM
RR WIPER INT INT VOLUME 3 — — LIGHT SW 1ST
INT VOLUME 2 RR WIPER ON — — —
