2007 INFINITI M35 turn signal

LT-4Revision: 2007 April2007 M35/M45 REMOVAL .........................................................230
INSTALLATION ..................................................230
Switch Circuit Inspection ......................................230
HAZARD SWITCH ..................................................231
Removal and Installation ......................................231
REMOVAL .........................................................231
COMBINATION SWITCH ........................................232
Wiring Diagram — COMBSW — ..........................232
Combination Switch Reading Function .................233
Terminals and Reference Values for BCM ............233
CONSULT-II Functions (BCM) ..............................238
CONSULT-II BASIC OPERATION .....................238
DATA MONITOR ................................................238
Combination Switch Inspection ............................239
Removal and Installation ......................................241
STOP LAMP ............................................................242
Wiring Diagram — STOP LAMP — ......................242
High-Mounted Stop Lamp .....................................244
BULB REPLACEMENT, REMOVAL AND
INSTALLATION ..................................................244
Stop Lamp ............................................................244
BULB REPLACEMENT .....................................244
REMOVAL AND INSTALLATION .......................244
BACK-UP LAMP .....................................................245
Wiring Diagram — B/LAMP — .............................245
Bulb Replacement ................................................246
Removal and Installation ......................................247
REMOVAL .........................................................247
INSTALLATION ..................................................247
PARKING, LICENSE PLATE AND TAIL LAMPS ....248
Component Parts and Harness Connector Location .248
System Description ...............................................248
OUTLINE ...........................................................248
OPERATION BY LIGHTING SWITCH ...............249
COMBINATION SWITCH READING FUNCTION .249
EXTERIOR LAMP BATTERY SAVER CONTROL .249
CAN Communication System Description ............249
CAN Communication Unit .....................................249
Schematic .............................................................250
Wiring Diagram — TAIL/L — ................................251
Terminals and Reference Values for BCM ............256
Terminals and Reference Values for IPDM E/R ....257
How to Perform Trouble Diagnoses ......................257
Preliminary Check ................................................257
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ..................................................................257
CONSULT-II Functions (BCM) ..............................258
CONSULT-II Functions (IPDM E/R) ......................258
Parking, License Plate and Tail Lamps Do Not Illu-
minate ...................................................................259
Parking, License Plate and Tail Lamps Do Not Turn
OFF (After Approx. 10 Minutes) ...........................263
License Plate Lamp ..............................................264
BULB REPLACEMENT .....................................264
Removal and Installation ......................................264
REMOVAL .........................................................264INSTALLATION ..................................................264
Front Parking (Clearance) Lamp ...........................264
BULB REPLACEMENT ......................................264
REMOVAL AND INSTALLATION .......................264
REAR COMBINATION LAMP .................................265
Bulb Replacement .................................................265
REAR TURN SIGNAL LAMP BULB, STOP/TAIL
LAMP BULB .......................................................265
Removal and Installation .......................................265
REMOVAL ..........................................................265
INSTALLATION ..................................................265
INTERIOR ROOM LAMP ........................................266
Component Parts and Harness Connector Location .266
System Description ...............................................266
ROOM LAMP TIMER BASIC OPERATION .......266
POWER SUPPLY AND GROUND .....................267
SWITCH OPERATION .......................................268
ROOM LAMP TIMER OPERATION ...................269
CONDITIONS FOR CANCELING TIMER ..........270
ROOM LAMP TIMER INAPPLICABLE LAMPS
OPERATION ......................................................270
INTERIOR ROOM LAMP BATTERY SAVER
FUNCTION ........................................................270
Schematic .............................................................271
Wiring Diagram — ROOM/L — .............................273
Terminals and Reference Values for BCM ............280
How to Perform Trouble Diagnoses ......................281
Preliminary Check .................................................282
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ...................................................................282
CONSULT-II Functions (BCM) ..............................283
CONSULT-II BASIC OPERATION .....................283
WORK SUPPORT (INT LAMP) .........................283
DATA MONITOR (INT LAMP) ............................284
ACTIVE TEST (INT LAMP) ................................285
WORK SUPPORT (BATTERY SAVER) .............285
DATA MONITOR (BATTERY SAVER) ...............285
ACTIVE TEST (BATTERY SAVER) ...................286
Interior Room Lamp Control Does Not Operate ....287
Map Lamp .............................................................289
BULB REPLACEMENT ......................................289
REMOVAL AND INSTALLATION .......................289
Personal Lamp ......................................................289
BULB REPLACEMENT ......................................289
REMOVAL AND INSTALLATION .......................289
Foot Lamp (Driver Side) ........................................290
BULB REPLACEMENT ......................................290
REMOVAL AND INSTALLATION .......................290
Foot Lamp (Passenger Side) ................................291
BULB REPLACEMENT ......................................291
REMOVAL AND INSTALLATION .......................291
Vanity Mirror Lamp ................................................291
BULB REPLACEMENT ......................................291
Step Lamp .............................................................292
BULB REPLACEMENT ......................................292
REMOVAL AND INSTALLATION .......................292
Kicking Plate Illumination ......................................292
BULB REPLACEMENT ......................................292

LT-10
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
Revision: 2007 April2007 M35/M45
HEADLAMP OPERATION
Low Beam Operation
With the lighting switch in 2ND position, the BCM receives input signal requesting the headlamps to illuminate.
This input signal is communicated to the IPDM E/R across the CAN communication lines. The CPU located in
the IPDM E/R controls the headlamp low relay coil, which when energized, directs power

through 15A fuse (No. 76, located in IPDM E/R)

through IPDM E/R terminal 20

to front combination lamp RH terminal 8,

through 15A fuse (No. 86, located in IPDM E/R)

through IPDM E/R terminal 30

to front combination lamp LH terminal 8.
Ground is supplied

to front combination lamp RH terminal 4

to front combination lamp LH terminal 4

through grounds E22 and E43.
With power and ground supplied, low beam headlamps illuminate.
High Beam Operation/Flash-to-Pass Operation
With the lighting switch in 2ND position and placed in HIGH or PASS position, the BCM receives input signal
requesting the headlamp high beams and low beams to illuminate. This input signal is communicated to the
IPDM E/R across the CAN communication lines. The CPU located in the IPDM E/R controls the headlamp
high relay coil and low relay coil, which when energized, directs power

through 15A fuse (No. 76, located in IPDM E/R)

through IPDM E/R terminal 20

to front combination lamp RH terminal 8,

through 15A fuse (No. 86, located in IPDM E/R)

through IPDM E/R terminal 30

to front combination lamp LH terminal 8,

through 10A fuse (No. 72, located in IPDM E/R)

through IPDM E/R terminal 27

to front combination lamp RH terminal 6,

through 10A fuse (No. 74, located in IPDM E/R)

through IPDM E/R terminal 28

to front combination lamp LH terminal 6.
Ground is supplied

to front combination lamp RH terminal 4

to front combination lamp LH terminal 4

to front combination lamp RH terminal 2

to front combination lamp LH terminal 2

through grounds E22 and E43.
With power and ground supplied, the high beam and low beam headlamps illuminate.
The unified meter and A/C amp. that received the high beam request signal by BCM across the CAN commu-
nication makes a high beam indicator lamp turn on in the combination meter.

HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
LT-19
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Terminals and Reference Values for BCMNKS003O4
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-II. Refer to LT- 2 3 8 , "
DATA MONITOR" .
Te r m i -
nal No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
2L/RCombination
switch input 5ONLighting, turn, wiper
switch
(Wiper dial position 4)Lighting switch HI beam
(Operates only HI beam
switch)
Approx. 1.0 V
Lighting switch 2ND
Approx. 2.0 V
OFF Approx. 0 V
3 O/LCombination
switch input 4ONLighting, turn, wiper
switch
(Wiper dial position 4)
Any of several con-
ditions below

Lighting switch 2ND

Lighting switch
PASSING (Operates
only PASSING switch)
Approx. 1.0 V
OFF Approx. 0 V
11 VIgnition switch
(ACC)ACC — Battery voltage
PKIB4957J
PKIB4953J
PKIB4957J

LT-20
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
Revision: 2007 April2007 M35/M45
34 LCombination
switch output 3ONLighting, turn, wiper
switch
(Wiper dial position 4)
Any of several con-
ditions below

Lighting switch 2ND

Lighting switch HI
beam
(Operates only HI
beam switch)
Approx. 1.2 V
OFF
Approx. 7.0 - 7.5 V
35 SBCombination
switch output 2ONLighting, turn, wiper
switch
(Wiper dial position 4)
Any of several con-
ditions below

Lighting switch 2ND

Lighting switch
PASSING (Operates
only PASSING switch)
Approx. 1.2 V
OFF
Approx. 7.0 - 7.5 V
37 LG
Key switch signal OFFIntelligent Key is inserted into key slot. Battery voltage
Intelligent Key is removed from key slot. Approx. 0 V
38 WIgnition switch
(ON) ON — Battery voltage
39 L CAN − H— — —
40 P CAN − L— — —
42 PBattery power
supplyOFF — Battery voltage
52 B Ground ON — Approx. 0 V
55 WBattery power
supplyOFF — Battery voltage Te r m i -
nal No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
PKIB4958J
PKIB4960J
PKIB4958J
PKIB4960J

HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
LT-23
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3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
CONSULT-II Functions (BCM)NKS003O8
CONSULT-II can display each diagnostic item using the diagnostic test mode shown following.
NOTE:
Cannot change the setting for headlamp.
CONSULT-II BASIC OPERATION
Refer to GI-38, "CONSULT-II Start Procedure" .
DATA MONITOR
Operation Procedure
1. Touch “HEAD LAMP” on “SELECT TEST ITEM” screen.
2. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
3. Touch either “ALL SIGNALS” or “SELECTION FROM MENU” on the “SELECT MONITOR ITEM” screen.
4. When “SELECTION FROM MENU” is selected, touch individual items to be monitored. When “ALL SIG-
NALS” 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
BCM connector Terminal
GroundContinuity
M2 52 Yes
SKIB5125E
BCM diagnosis part Diagnosis mode Description
HEADLAMPWORK SUPPORT
Changes the setting for each function.
NOTE
DATA MONITOR Displays BCM input data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
BCMSELF-DIAG RESULTS BCM performs self-diagnosis of CAN communication.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ALL SIGNALS Monitors all the signals.
SELECTION FROM MENU Selects items and monitor them.
Monitor item Contents
IGN ON SW “ON/OFF” Displays “IGN position (ON)/OFF, ACC position (OFF)” judged from the ignition switch signal.
ACC ON SW “ON/OFF” Displays “ACC (ON)/OFF, Ignition OFF (OFF)” status judged from ignition switch signal.
KEY ON SW “ON/OFF”Displays “Intelligent Key inserted into key slot (ON)/Intelligent Key removed from key slot
(OFF)” status judged from the key switch signal.
TURN SIGNAL R “ON/OFF” Displays status (turn right: ON/others: OFF) as judged from lighting switch signal.
TURN SIGNAL L “ON/OFF” Displays status (turn left: ON/others: OFF) as judged 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.

LT-26
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
Revision: 2007 April2007 M35/M45
Headlamp High Beam Does Not Illuminate (Both Sides)NKS003OA
1. CHECK COMBINATION SWITCH INPUT SIGNAL
With CONSULT-II
1. Select “BCM” on CONSULT-II. Select “HEAD LAMP” on
“SELECT TEST ITEM” screen.
2. Select “DATA MONITOR” on “SELECT DIAG MODE” screen.
Make sure that “HI BEAM SW” turns ON-OFF linked with opera-
tion of lighting switch.
Without CONSULT-II
Refer to LT- 2 3 9 , "
Combination Switch Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Check combination switch (lighting switch). Refer to LT- 2 3 9 , "
Combination Switch Inspection" .
2. HEADLAMP ACTIVE TEST
With CONSULT-II
1. Select “IPDM E/R” on CONSULT-II. Select “ACTIVE TEST” on
“SELECT DIAG MODE” screen.
2. Select “LAMPS” on “SELECT TEST ITEM” screen.
3. Touch “HI” screen.
4. Make sure headlamp high beam operation.
Without CONSULT-II
1. Start auto active test. Refer to PG-23, "
Auto Active Test" .
2. Make sure headlamp high beam operation.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3. CHECK IPDM E/R
1. Select “IPDM E/R” on CONSULT-II. Select “DATA MONITOR”
on “SELECT DIAG MODE” screen.
2. Make sure “HL LO REQ” and “HL HI REQ” turns ON when light-
ing switch is in HI position.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-31, "Removal and
Installation of IPDM E/R" .
NG >> Replace BCM. Refer to BCS-15, "
Removal and Installa-
tion of BCM" . When lighting switch is
HIGH position: HI BEAM SW ON
PKIA7585E
Headlamp high beam should operate
(Headlamp high beam repeats ON–OFF every 1 second).
Headlamp high beam should operate.
SKIA5774E
When lighting switch is
HIGH position: HL LO REQ ON
: HL HI REQ ON
PKIA7638E

HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
LT-27
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4. CHECK HEADLAMP INPUT SIGNAL
With CONSULT-II
1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH and LH connector.
3. Select “IPDM E/R” on CONSULT-II, select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
4. Select “LAMPS” on “SELECT TEST ITEM” screen.
5. Touch “HI” screen.
6. When headlamp high beam is operating, check voltage between
front combination lamp (RH and LH) harness connector and
ground. (Headlamp high beam repeats ON-OFF every 1 sec-
ond.)
Without CONSULT-II
1. Turn ignition switch OFF.
2. Disconnect front combination lamp connector.
3. Start auto active test. Refer to PG-23, "
Auto Active Test" .
4. When headlamp high beam is operating, check voltage between front combination lamp (RH and LH) har-
ness connector and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 7.
5. CHECK HEADLAMP GROUND
1. Turn ignition switch OFF.
2. Check continuity between front combination lamp (RH and LH)
harness connector and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
Terminal
Voltage
(Approx.) (+)
(-)
Front combination lamp
connectorTerminal
RH E47 6
Ground Battery voltage
LH E54 6
Terminal
Voltage
(Approx.) (+)
(-)
Front combination lamp
connectorTerminal
RH E47 6
Ground Battery voltage
LH E54 6
SKIB4749E
Front combination lamp
connectorTe r m i n a l
GroundContinuity
RH E47 2
Ye s
LH E54 2
SKIB4750E

HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
LT-29
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Headlamp High Beam Does Not Illuminate (One Side)NKS003OB
1. CHECK BULB
Check bulb of lamp which does not illuminate.
OK or NG
OK >> GO TO 2.
NG >> Replace headlamp bulb.
2. CHECK HEADLAMP INPUT SIGNAL
With CONSULT-II
1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH or LH connector.
3. Select “IPDM E/R” on CONSULT-II. Select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
4. Select “LAMPS” on “SELECT TEST ITEM” screen.
5. Touch “HI” screen.
6. When headlamp high beam is operating, check voltage between
front combination lamp RH or LH harness connector and
ground. (Headlamp high beam repeats ON-OFF every 1 sec-
ond.)
Without CONSULT-II
1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH or LH connector.
3. Start auto active test. Refer to PG-23, "
Auto Active Test" .
4. When headlamp high beam is operating, check voltage between front combination lamp RH or LH har-
ness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
Terminal
Voltage
(Approx.) (+)
(-)
Front combination lamp
connectorTerminal
RH E47 6
Ground Battery voltage
LH E54 6
Terminal
Voltage
(Approx.) (+)
(-)
Front combination lamp
connectorTerminal
RH E47 6
Ground Battery voltage
LH E54 6
SKIB4749E