INFINITI FX35 2006 Service Manual

TURN SIGNAL AND HAZARD WARNING LAMPS LT-99
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Revision: 2006 December 2006 FX35/FX45
Terminals and Reference Value for Rear Combination Lamp Control UnitNKS003N4
45 G/W Flasher output
(left) ON
Combination
switch Turn left ON
46 BR/W Flasher output
(right) ON
Combination
switch Turn right ON
49 B Ground ON — Approx. 0 V
52 B Ground ON — Approx. 0 V
55 G Battery power
supply OFF — Battery voltage
Terminal
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
SKIA3009J
SKIA3009J
Te r m i -
nal
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
1 GY Ignition switch (ON) ON — Battery voltage
2 R Tail lamp signal — Lighting switch OFF Approx. 0 V
Lighting switch 1ST Battery voltage
3 P Stop lamp signal — Brake pedal released
(stop lamp switch OFF) Approx. 0 V
Brake pedal depressed
(stop lamp switch ON) Battery voltage
4 OR Turn signal lamp LH signal ON
Turn signal switch OFF,
hazard switch OFF Approx. 0 V
ON Turn signal switch LH
Approx. 6.0 V
— Hazard switch ON
5 PU Turn signal lamp RH signal ON
Turn signal switch OFF,
hazard switch OFF Approx. 0 V
ON Turn signal switch RH
Approx. 6.0 V
— Hazard switch ON
PKIC6370E
PKIC6370E

LT-100
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2006 December 2006 FX35/FX45
6 SB Warning output signal ON When turn signal lamp
operates normally
Approx. 5.0 V
Except when turn signal
lamp operates normally Approx. 9.9 V
7 B Ground ON — Approx. 0 V
8Y Rear combination lamp RH
ground ON — Approx. 0 V
9LG Rear combination lamp drive sig-
nal (RH) — Lighting switch OFF,
brake pedal released
(stop lamp switch OFF),
turn signal switch OFF,
hazard switch OFF Approx. 0 V
Lighting switch 1ST Approx. 0.3 V
Brake pedal depressed
(stop lamp switch ON) Battery voltage
ON Turn signal switch RH
Approx. 3.7 V
— Hazard switch ON
10 BR Rear combination lamp LH
ground ON — Approx. 0 V
Te r m i -
nal
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
PKIC9669E
PKIC9670E
PKIC9671E

TURN SIGNAL AND HAZARD WARNING LAMPS LT-101
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Revision: 2006 December 2006 FX35/FX45
11 W Rear combination lamp drive sig-
nal (LH) — Lighting switch OFF,
brake pedal released
(stop lamp switch OFF),
turn signal switch OFF,
hazard switch OFF Approx. 0 V
Lighting switch 1ST Approx. 0.3 V
Brake pedal depressed
(stop lamp switch ON) Battery voltage
ON Turn signal switch LH
Approx. 3.7 V
— Hazard switch ON
Te r m i -
nal
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or conditionPKIC9670E
PKIC9671E

LT-102
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2006 December 2006 FX35/FX45
How to Proceed With Trouble DiagnosisNKS002XJ
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 9 0 , "
System Description" .
3. Perform preliminary check. Refer to LT- 1 0 2 , "
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 CheckNKS002XK
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES
Check for blown fuses.
Refer to LT- 9 5 , "
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. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
Unit Power source Fuse and fusible link No.
BCM Battery
M
22
Ignition switch ON or START position 1 Ignition switch ACC or ON position 6
Rear combination lamp control unit Battery 20
(+) (-) Ignition switch position
OFF ACC ON
BCM con-
nector Terminal
M3 11
Ground Approx. 0 V
Battery
voltage Battery
voltage
38 Approx. 0 V Approx. 0 V Battery
voltage
M4 42
Battery
voltage Battery
voltage Battery
voltage
55 Battery
voltage Battery
voltage Battery
voltage
PKIB5197E

TURN SIGNAL AND HAZARD WARNING LAMPS LT-103
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Revision: 2006 December 2006 FX35/FX45
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
BCM connector Terminal
Ground Continuity
M4 49
Ye s
52
PKIB3545E

LT-104
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2006 December 2006 FX35/FX45
CONSULT-II Functions (BCM)NKS002XL
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 “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 “SELECT MONITOR ITEM” screen.
4. When “SELECTION FROM MENU” is selected, touch items to be monitored. When “ALL SIGNALS” is selected, all the items 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
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 “OFF” deactivates the operation.
Display Item List
BCM diagnosis part 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.
ALL SIGNALS Monitors all the signals.
SELECTION FROM MENU Selects items and monitors them.
Monitor item Contents
IGN ON SW “ON/OFF” Displays “IGN position (ON)/OFF, ACC position (OFF)” judged from 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.
BRAKE SW “ON/OFF” Displays “Stop lamp switch ON (ON)/Stop lamp switch OFF (OFF)” status, determined from stop lamp
switch signal.
Test item Description
FLASHER Turn signal lamp (right or left) can be operated by any ON-OFF operations.

TURN SIGNAL AND HAZARD WARNING LAMPS LT-105
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Revision: 2006 December 2006 FX35/FX45
Turn Signal Lamp Does Not OperateNKS002XM
1. CHECK COMBINATION SWITCH INPUT SIGNAL
With CONSULT-II
Select “BCM” on CONSULT-II. With “FLASHER” data monitor, make
sure “TURN SIGNAL R” and “TURN SIGNAL L” turns ON-OFF
linked with operation of lighting switch.
Without CONSULT-II
Refer to LT- 1 2 0 , "
Combination Switch Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Check combination switch (lighting switch). Refer to LT- 1 2 0 , "
Combination Switch Inspection" .
2. ACTIVE TEST
With CONSULT-II
1. Select “FLASHER” during active test. Refer to LT- 1 0 4 , "
ACTIVE
TEST" .
2. Make sure “FLASHER RIGHT” and “FLASHER LEFT” operate.
Without CONSULT-II
GO TO 3.
OK or NG
OK >> Replace BCM. Refer to BCS-15, "Removal and Installa-
tion of BCM" .
NG >> GO TO 3.
3. CHECK TURN SIGNAL LAMPS CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector and front combination lamp LH and RH connectors.
3. Check continuity between BCM harness connector M4 terminal 45 and front combination lamp LH harness connector E44 termi-
nal 4.
4. Check continuity between BCM harness connector M4 terminal 46 and front combination lamp RH harness connector E24 ter-
minal 4.
OK or NG
OK >> GO TO 4.
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
PKIA7600E
PKIA5276E
45 – 4 : Continuity should exist.
46 – 4 : Continuity should exist.
PKIB3490E

LT-106
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2006 December 2006 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-
15, "Removal and Installation of BCM" .
NG >> Replace turn signal lamp bulb.
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. 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-107
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Revision: 2006 December 2006 FX35/FX45
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.
PKIB3493E
1 – Ground : Battery voltage.
SKIA5907E
7 – Ground : Continuity should exist.
SKIA5908E

LT-108
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2006 December 2006 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 BULB
Make sure bulb standard of each turn signal lamp is correct.
OK or NG
OK >> GO TO 2.
NG >> Replace bulb. 11 – 3 : Continuity should exist.
10 – 4 : Continuity should exist.
9 – 3 : Continuity should exist.
8 – 4 : Continuity should exist.
SKIA5910E