2007 INFINITI FX35 BCM

LT-104
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2006 July 2007 FX35/FX45
4. CHECK GROUND
1. Check continuity between front combination lamp LH harness connector E44 terminal 8 and ground.
2. Check continuity between front combination lamp RH harness connector E24 terminal 8 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK TURN SIGNAL LAMPS SHORT CIRCUIT
1. Disconnect rear combination lamp unit connector.
2. Check continuity (short circuit) between front combination lamp LH harness connector E44 terminal 4 and ground.
3. Check continuity (short circuit) between front combination lamp RH harness connector E24 terminal 4 and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
6. CHECK BULB
Check bulb standard of each turn signal lamp is correct.
OK or NG
OK >> Replace BCM if turn signal lamps does not work after setting the connector again. Refer to BCS-
14, "Removal and Installation of BCM" .
NG >> Replace turn signal lamp bulb. 8 – Ground : Continuity should exist.
8 – Ground : Continuity should exist.
PKIA5218E
4 – Ground : Continuity should not exist.
4 – Ground : Continuity should not exist.
PKIA5219E

TURN SIGNAL AND HAZARD WARNING LAMPS LT-105
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Revision: 2006 July 2007 FX35/FX45
Rear Turn Signal Lamp Does Not OperateNKS002XN
1. CHECK TAIL LAMPS AND STOP LAMPS
Make sure tail lamps and stop lamps is illuminated.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK TURN SIGNAL LAMPS CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector M4 terminal 45 and rear combination lamp control unit harness connector
B65 terminal 4.
3. Check continuity between BCM harness connector M4 terminal 46 and rear combination lamp control unit harness connector
B65 terminal 5.
OK or NG
OK >> Replace rear combination lamp control unit.
NG >> Repair harness or connector.
3. CHECK POWER SUPPLY CIRCUIT
1. Disconnect rear combination lamp control unit connector.
2. Check voltage between rear combination lamp control unit har- ness connector B65 terminal 1 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK GROUND CIRCUIT
Check continuity between rear combination lamp control unit har-
ness connector B65 terminal 7 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector. 45 – 4 : Continuity should exist.
46 – 5 : Continuity should exist.
SKIA5909E
1 – Ground : Battery voltage.
SKIA5907E
7 – Ground : Continuity should exist.
SKIA5908E

LT-106
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2006 July 2007 FX35/FX45
5. CHECK REAR COMBINATION LAMPS CIRCUIT
1. Disconnect rear combination lamp RH and LH connectors.
2. Check continuity between rear combination lamp control unit harness connector B65 terminal 11 and rear combination lamp
LH harness connector B57 terminal 3.
3. Check continuity between rear combination lamp control unit harness connector B65 terminal 10 and rear combination lamp
LH harness connector B57 terminal 4.
4. Check continuity between rear combination lamp control unit harness connector B65 terminal 9 and rear combination lamp RH harness connector B219 terminal 3.
5. Check continuity between rear combination lamp control unit harness connector B65 terminal 8 and rear combination lamp RH harness connector B219 terminal 4.
OK or NG
OK >> Replace rear combination lamp control unit or rear combination lamp, and then check if turn signal lamps is illuminated.
NG >> Repair harness or connector.
Hazard Warning Lamp Does Not Operate But Turn Signal Lamp OperateNKS002XO
1. CHECK HAZARD SWITCH INPUT SIGNAL
With CONSULT-II
Select “BCM” on CONSULT-II. With “FLASHER” data monitor to
make sure “HAZARD SW” turns ON-OFF linked with operation of
hazard switch.
Without CONSULT-II
Check voltage between BCM harness connector M3 terminal 29 and
ground.
OK or NG
OK >> Replace BCM. Refer to BCS-14, "Removal and Installa-
tion of BCM" .
NG >> GO TO 2. 11 – 3 : Continuity should exist.
10 – 4 : Continuity should exist.
9 – 3 : Continuity should exist.
8 – 4 : Continuity should exist.
SKIA5910E
When hazard switch is ON position : HAZARD SW ON
PKIA7601E
(+) (-) Condition Voltage
BCM con-
nector Terminal
M3 29 Ground Hazard switch is ON Approx. 0 V
Hazard switch is OFF Battery voltage
SKIA5911E

TURN SIGNAL AND HAZARD WARNING LAMPS LT-107
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Revision: 2006 July 2007 FX35/FX45
2. CHECK HAZARD SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector and hazard switch connector.
3. Check continuity BCM harness connector M3 terminal 29 and hazard switch harness connector M51 terminal 2.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK GROUND
Check continuity hazard switch harness connector M51 terminal 1
and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK HAZARD SWITCH
Check continuity hazard switch.
OK or NG
OK >> Replace BCM if turn signal lamps does not work after setting the connector again. Refer to BCS-14, "
Removal
and Installation of BCM" .
NG >> Replace hazard switch. 29 – 2 : Continuity should exist.
SKIA5912E
1 – Ground : Continuity should exist.
SKIA5913E
Te r m i n a l
Condition Continuity
Hazard switch
12 Hazard switch is ON Yes
Hazard switch is OFF No
PKIA5221E

LT-112
COMBINATION SWITCH
Revision: 2006 July 2007 FX35/FX45
Combination Switch Reading FunctionNKS003N5
For details, refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
Terminals and Reference Values for BCMNKS003N6
CAUTION:

Check combination switch system terminal waveform under the loaded condition with lighting
switch, turn signal 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-II. Refer to LT- 11 7 , "
DATA MONITOR" .
Te r -
minal No. Wire
color Signal name Measuring condition
Reference value
Igni-
tion
switch Operation or condition
2 G/Y Combination
switch input 5 ON Lighting, 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/B Combination
switch input 4 ON Lighting, turn,
wiper switch
(Wiper inter-
mittent dial
position 4) OFF Approx. 0 V
Front fog lamp switch
(Operates only front fog lamp
switch)
Approx. 0.8 V
Any of the conditions below

Lighting switch 2ND

Lighting switch PASSING
(Operates only PASSING switch)

Turn signal switch to left
Approx. 0.8 V
PKIB4959J
PKIB4953J
PKIB4955J
PKIB4959J

COMBINATION SWITCH LT-117
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Revision: 2006 July 2007 FX35/FX45
CONSULT-II Functions (BCM)NKS002XZ
CONSULT-II can display each diagnostic item using the diagnostic test mode shown following.
CONSULT-II BASIC OPERATION
Refer to GI-38, "CONSULT-II Start Procedure" .
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 “SELECT MONITOR ITEM” screen.
4. When “SELECTION FROM MENU” is selected, touch items to be monitored. When “ALL SIGNALS” is selected, all the signals will be monitored.
5. Touch “START”.
6. Touch “RECORD” while monitoring, then the status of the monitored item can be recorded. To stop recording, touch “STOP”.
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.
ALL SIGNALS Monitors all the signals.
SELECTION FROM MENU Selects items and monitors them.
Monitor item 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.
AUTO LIGHT SW “ON/OFF” Displays “Auto light switch (ON)/Other (OFF)” status, determined from lighting switch signal.
FR FOG SW “ON/OFF” Displays “Front fog lamp switch (ON)/Other (OFF)” status, determined from lighting switch signal.
RR FOG SW
NOTE“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.

COMBINATION SWITCH LT-119
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Revision: 2006 July 2007 FX35/FX45
3. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect BCM connector and combination switch connector.
3. Check for continuity between BCM harness connector of the suspect system and the corresponding com- bination switch harness connector.
4. Check for continuity between BCM harness connector in suspect malfunctioning system and ground.
OK or NG
OK >> GO TO 4.
NG >> Check harness between BCM and combination switch for open or short circuit.
Suspect
system BCM Combination switch
Continuity
Connector Terminal Connector Terminal
1
M3 Input 1 6
M17 6
Ye s
Output 1 36 1
2 Input 2 5 7
Output 2 35 2
3 Input 3 4 10
Output 3 34 3
4 Input 4 3 9
Output 4 33 4
5 Input 5 2 8
Output 5 32 5
Suspect system BCM
connector Terminal Continuity
1
M3 Input 1 6
Ground No
Output 1 36
2 Input 2 5
Output 2 35
3 Input 3 4
Output 3 34
4 Input 4 3
Output 4 33
5 Input 5 2
Output 5 32
PKIA7235E
PKIA7506E

LT-120
COMBINATION SWITCH
Revision: 2006 July 2007 FX35/FX45
4. CHECK BCM OUTPUT TERMINAL
1. Turn lighting switch and wiper switch OFF position.
2. Set wiper dial position 4.
3. Connect BCM connector and combination switch connector.
4. Turn ignition switch ON.
5. Check BCM output terminal voltage waveform of suspect mal- functioning system.
OK or NG
OK >> Open circuit in combination switch, GO TO 5.
NG >> Replace BCM. Refer to BCS-14, "
Removal and Installation of BCM" .
5. CHECK COMBINATION SWITCH
Referring to table below, perform combination switch inspection.
>> INSPECTION END
Removal and InstallationNKS002Y1
Refer to LT- 1 0 9 , "LIGHTING AND TURN SIGNAL SWITCH" and WW-37, "Removal and Installation of Front
Wiper and Washer Switch" .
Suspect
system (+)
( − ) Reference value
Combination
switch
connector Terminal
1
M17 1
Ground
22
33
44
55
PKIC1020E
PKIB4960J
Procedure
12 3 4 5 6 7
Replace lighting switch Confirm
check
results OK INSPECTION END Confirm
check
results OK INSPECTION END Confirm
check
results OK INSPECTION END
NG Replace wiper switch NG Replace switch base NG Confirm symptom again