ignition INFINITI FX35 2006 Service Manual

TROUBLE DIAGNOSIS FOR SYSTEM LAN-197
[CAN]
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Revision: 2006 December 2006 FX35/FX45
LDW Camera Unit Circuit InspectionNKS00396
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check following terminals and connectors for damage, bend and loose connection (unit side and harness side).
–LDW camera unit connector
–Harness connector R1
–Harness connector M31
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect LDW camera unit connector.
2. Check resistance between LDW camera unit harness connector terminals.
OK or NG
OK >> Replace LDW camera unit.
NG >> Repair harness between LDW camera unit and data link connector.
Unified Meter and A/C Amp. Circuit InspectionNKS00397
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of unified meter and A/C amp. for damage, bend and loose connection (meter side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect unified meter and A/C amp. connector.
2. Check resistance between unified meter and A/C amp. harness connector terminals.
OK or NG
OK >> Replace unified meter and A/C amp.
NG >> Repair harness between unified meter and A/C amp.
and harness connector M41.
LDW camera unit
connector TerminalsResistance
(Approx.)
R9 10 5 54 – 66 Ω
SKIB2333E
Unified meter and
A/C amp. connec- tor Te r m i n a l s
Resistance
(Approx.)
M55 1 11 54 – 66 Ω
SKIA6871E

LAN-198
[CAN]
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2006 December 2006 FX35/FX45
ICC Sensor Circuit InspectionNKS00398
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of ICC sensor for damage, bend and loose connection (sensor side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ICC sensor connector.
2. Check resistance between ICC sensor harness connector termi- nals.
OK or NG
OK >> Replace ICC sensor.
NG >> Repair harness between ICC sensor and ABS actuator and electric unit (control unit).
ABS Actuator and Electric Unit (Control Unit) Circuit InspectionNKS00399
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of ABS actuator and electric unit (control unit) for damage, bend and loose connection (control unit side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Check resistance between ABS actuator and electric unit (con- trol unit) harness connector terminals.
OK or NG
OK >> Replace ABS actuator and electric unit (control unit).
NG >> Repair harness between ABS actuator and electric unit (control unit) and harness connector E205.
ICC sensor con-
nector Terminals Resistance
(Approx.)
E39 3 6 54 – 66 Ω
SKIA6888E
ABS actuator and
electric unit (con-
trol unit) connector Terminals
Resistance
(Approx.)
E56 11 15 54 – 66 Ω
SKIA6872E

TROUBLE DIAGNOSIS FOR SYSTEM LAN-199
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Revision: 2006 December 2006 FX35/FX45
Driver Seat Control Unit Circuit InspectionNKS0039A
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check following terminals and connectors for damage, bend and loose connection (control unit side and harness side).
–Driver seat control unit connector
–Harness connector B151
–Harness connector B8
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect driver seat control unit connector.
2. Check resistance between driver seat control unit harness con- nector terminals.
OK or NG
OK >> Replace driver seat control unit.
NG >> Repair harness between driver seat control unit and har- ness connector B5.
IPDM E/R Circuit InspectionNKS0039B
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check following terminals and connectors for damage, bend and loose connection (control module side and harness side).
–IPDM E/R connector
–Harness connector E205
–Harness connector B5
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
Driver seat control
unit connector Te r m i n a l sResistance
(Approx.)
B152 14 15 54 – 66 Ω
SKIA6882E

LAN-200
[CAN]
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2006 December 2006 FX35/FX45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect IPDM E/R connector.
2. Check resistance between IPDM E/R harness connector termi- nals.
OK or NG
OK >> Replace IPDM E/R.
NG >> Repair harness between IPDM E/R and harness con-
nector B8.
CAN Communication Circuit InspectionNKS0039C
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Disconnect the harness connector for each unit on the CAN network and check terminals for deformation, disconnection, looseness or damage.
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR SHORT CIRCUIT
With all module and control unit connectors disconnected, Check
continuity between data link connector terminals.
OK or NG
OK >> GO TO 3.
NG >>

Repair harness

Change harness if shielded lines are used for the har-
ness
3. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between data link connector terminal and ground.
OK or NG
OK >> GO TO 4.
NG >>

Repair harness

Change harness if shielded lines are used for the har-
ness
IPDM E/R connec-
tor Terminals
Resistance
(Approx.)
E9 48 49 54 – 66 Ω
SKIB1363E
Data link connec-
tor Terminals Continuity
M5 6 14 No
PKIA9865E
Data link connec- tor Terminal
Ground Continuity
M5 6
No
14
PKIA9872E

TROUBLE DIAGNOSIS FOR SYSTEM LAN-201
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Revision: 2006 December 2006 FX35/FX45
4. ECM AND IPDM E/R INTERNAL CIRCUIT INSPECTION
1. Remove ECM and IPDM E/R from vehicle.
2. Check resistance between ECM terminals.
3. Check resistance between IPDM E/R terminals.
OK or NG
OK >> GO TO 5.
NG >> Replace ECM and/or IPDM E/R.
5. CHECK SYMPTOM
1. Fill in described symptoms on the column “Symptom” in the check sheet.
2. Connect all connectors, and then make sure that the symptom is reproduced.
Check results
Reproduced>>GO TO 6.
Not reproduced>>Refer to LAN-14, "
Example of Filling in Check Sheet When Initial Conditions Are Not
Reproduced" .
6. CHECK UNIT REPRODUCIBILITY
Performs the following procedure for each unit on the CAN network, and then perform reproducibility test.
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Disconnect the unit connector.
4. Connect the battery cable to the negative terminal.
5. Make sure that the symptom filled in the “Symptom” of the check sheet is reproduced. NOTE:
Malfunction (related to a unit that the connector is disconnected) is reproduced. Do not confuse the mal-
function with the symptom filled in the column of “Symptom” on the check sheet.
Inspection results
Reproduced>>Connect the disconnected connector. Check other units applying the above procedure.
Not reproduced>>Replace the unit that the connector is disconnected.
IPDM E/R Ignition Relay Circuit InspectionNKS0039D
Check the following. If no malfunction is found, replace the IPDM E/R.

IPDM E/R power supply circuit. Refer to PG-26, "IPDM E/R Power/Ground Circuit Inspection" .

Ignition power supply circuit. Refer to PG-12, "IGNITION POWER SUPPLY — IGNITION SW. IN “ON”
AND/OR “START”" .
ECM connector Terminals Resistance
(Approx.)
M90 94 86 108 – 132 Ω
IPDM E/R connec- tor Te r m i n a l s Resistance
(Approx.)
E9 48 49 108 – 132 Ω
LKIA0037E

LT-3
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Revision: 2006 December 2006 FX35/FX45 HAZARD SWITCH .................................................
..112
Removal and Installation ..................................... .. 112
REMOVAL ........................................................ .. 112
INSTALLATION ................................................ .. 112
COMBINATION SWITCH ....................................... ..113
Wiring Diagram — COMBSW — ......................... .. 113
Combination Switch Reading Function ............... .. 114
Terminals and Reference Values for BCM .......... .. 114
CONSULT-II Functions (BCM) ............................ .. 119
CONSULT-II BASIC OPERATION .................... .. 119
DATA MONITOR .............................................. .. 119
Combination Switch Inspection ........................... . 120
Removal and Installation ..................................... . 122
STOP LAMP .......................................................... . 123
Component Parts and Harness Connector Location . 123
System Description ............................................. . 123
Schematic ........................................................... . 124
Wiring Diagram — STOP/L — ............................. . 125
Terminals and Reference Value for Rear Combina-
tion Lamp Control Unit ........................................ . 128
Stop Lamp Does Not Operate ............................. . 128
High-Mounted Stop Lamp ................................... . 130
BULB REPLACEMENT, REMOVAL AND
INSTALLATION ................................................ . 130
Stop Lamp ........................................................... . 130
BULB REPLACEMENT .................................... . 130
REMOVAL AND INSTALLATION ..................... . 130
Rear Combination Lamp Control Unit ................. . 130
REMOVAL AND INSTALLATION ..................... . 130
BACK-UP LAMP ................................................... . 131
Wiring Diagram — BACK/L — ............................ . 131
Bulb Replacement ............................................... . 132
Removal and Installation ..................................... . 132
PARKING, LICENSE PLATE AND TAIL LAMPS .. . 133
Component Parts and Harness Connector Location . 133
System Description ............................................. . 133
OUT LINE ......................................................... . 133
OPERATION BY LIGHTING SWITCH ............. . 134
COMBINATION SWITCH READING FUNCTION . 135
EXTERIOR LAMP BATTERY SAVER CONTROL . 135
CAN Communication System Description ........... . 135
CAN Communication Unit ................................... . 135
Schematic ........................................................... . 136
Wiring Diagram — TAIL/L — ............................... . 137
Terminals and Reference Values for BCM .......... . 142
Terminals and Reference Values for IPDM E/R .. . 142
Terminals and Reference Value for Rear Combina-
tion Lamp Control Unit ........................................ . 144
How to Proceed With Trouble Diagnosis ............. . 144
Preliminary Check ............................................... . 144
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ................................................................. . 144
CONSULT-II Functions (BCM) ............................ . 145
CONSULT-II Functions (IPDM E/R) .................... . 145
Parking, License Plate and Side Marker Lamps Do
Not Illuminate ...................................................... . 145
Tail Lamp Does Not Operate ............................... . 151
Parking, License Plate, Side Maker and Tail Lamps
Do Not Turn OFF (After Approx. 10 Minutes) ...... . 152 License Plate Lamp .............................................
.152
BULB REPLACEMENT, REMOVAL AND
INSTALLATION ................................................ .152
Front Parking Lamp ............................................. .153
BULB REPLACEMENT .................................... .153
REMOVAL AND INSTALLATION ..................... .153
Tail Lamp ............................................................. .153
BULB REPLACEMENT .................................... .153
REMOVAL AND INSTALLATION ..................... .153
Front Side Marker Lamp ...................................... .153
BULB REPLACEMENT .................................... .153
REMOVAL AND INSTALLATION ..................... .153
Rear Side Marker Lamp ...................................... .153
BULB REPLACEMENT .................................... .153
REMOVAL AND INSTALLATION ..................... .153
Rear Combination Lamp Control Unit .................. .153
REMOVAL AND INSTALLATION ..................... .153
REAR COMBINATION LAMP ................................ .154
Bulb Replacement ............................................... .154
REAR FENDER SIDE (REAR SIDE MARKER
LAMP BULB) .................................................... .154
BACK DOOR SIDE (BACK-UP LAMP) ............ .154
Removal and Installation ..................................... .154
REMOVAL ........................................................ .154
INSTALLATION ................................................ .155
INTERIOR ROOM LAMP ....................................... .156
Component Parts and Harness Connector Location .156
System Description .............................................. .156
POWER SUPPLY AND GROUND ................... .157
SWITCH OPERATION ..................................... .158
ROOM LAMP TIMER OPERATION ................. .159
INTERIOR LAMP BATTERY SAVER CONTROL .160
Schematic ............................................................ .162
Wiring Diagram — ROOM/L — ........................... .164
Terminals and Reference Values for BCM ........... .172
How to Proceed With Trouble Diagnosis ............. .173
Preliminary Check ............................................... .173
CHECK FOR POWER SUPPLY AND GROUND
CIRCUIT ........................................................... .173
CONSULT-II Functions (BCM) ............................. .174
CONSULT-II BASIC OPERATION .................... .174
WORK SUPPORT (INT LAMP) ........................ .174
DATA MONITOR (INT LAMP) .......................... .174
ACTIVE TEST (INT LAMP) .............................. .175
WORK SUPPORT (BATTERY SAVER) ........... .176
DATA MONITOR (BATTERY SAVER) .............. .176
ACTIVE TEST (BATTERY SAVER) .................. .177
Interior Room Lamp Control Does Not Operate .. .177
Map Lamp Control Does Not Operate ................. .178
Personal Lamp Control Does Not Operate .......... .181
Ignition Key Hole Illumination Control Does Not
Operate ................................................................ .182
All Step Lamps Do Not Operate .......................... .184
All Interior Room Lamps Do Not Operate ............ .185
Bulb Replacement ............................................... .185
IGNITION KEY HOLE ILLUMINATION (WITH-
OUT INTELIGENT KEY) .................................. .185
IGNITION KEY HOLE ILLUMINATION (WITH
INTELIGENT KEY) ........................................... .185

HEADLAMP - XENON TYPE - LT-7
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HEADLAMP - XENON TYPE -PFP:26010
Component Parts and Harness Connector LocationNKS002V5
System DescriptionNKS002V6
Control of the headlamp system operation is dependent upon the position of the combination switch (lighting
switch). When the lighting switch is placed in the 2ND position, the BCM (body control module) receives input
signal requesting the headlamps (and tail lamps) illuminate. This input signal is communicated to the IPDM E/
R (intelligent power distribution module engine room) through the CAN communication lines. The CPU (central
processing unit) located in the IPDM E/R controls the headlamp high and headlamp low relay coils. These
relays, when energized, direct power to the respective headlamps, which then illuminate.
If voltage is applied to a high beam solenoid, the bulb shade will move, even a xenon head lamp bulb comes
out, and a high beam and a low beam are changed.
OUTLINE
Power is supplied at all times

to headlamp high relay, located in IPDM E/R

to headlamp low relay, located in IPDM E/R and

to ignition relay, located in IPDM E/R, from battery direct,

through 10A fuse (No. 71, located in IPDM E/R)

to CPU located in IPDM E/R,

through 15A fuse (No. 78, located in IPDM E/R)

to CPU located in IPDM E/R,

through 50A fusible link (letter M, located in fuse, fusible link and relay box)

to BCM terminal 55,

through 15A fuse [No. 22, located in fuse block (J/B)]

to BCM terminal 42,

through 10A fuse [No. 19, located in fuse block (J/B)]

to combination meter terminal 8.
PKIC9683E

LT-8
HEADLAMP - XENON TYPE -
Revision: 2006 December 2006 FX35/FX45
With ignition switch in ON or START position, power is supplied

to ignition relay, located in IPDM E/R, from battery direct

through 15A fuse [No. 1, located in fuse block (J/B)]

to BCM terminal 38,

through 10A fuse [No. 12, located in fuse block (J/B)]

to combination meter terminal 7.
With ignition switch in ACC or ON position, power is supplied

through 10A fuse [No. 6, located in fuse block (J/B)]

to BCM terminal 11.
Ground is supplied

to BCM terminals 49 and 52

through grounds M35, M45 and M85,

to IPDM E/R terminals 38 and 60

through grounds E21, E50 and E51,

to combination meter terminals 5, 6 and 15

through grounds M35, M45 and M85.
HEADLAMP OPERATION
Low Beam Operation
With the lighting switch in the 2ND position, the BCM receives input signal requesting the headlamps to illumi-
nate. This input signal is communicated to the IPDM E/R through 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 6,

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

through IPDM E/R terminal 30

to front combination lamp LH terminal 6.
Ground is supplied

to front combination lamp RH and LH terminals 7

through grounds E21, E50 and E51,
With power and ground supplied, low beam headlamps illuminate.
High Beam Operation/Flash-to-Pass Operation
With the lighting switch in the 2ND position and placed in the HIGH or PASS position, the BCM receives input
signal requesting the headlamp high beams to illuminate. This input signal is communicated to the IPDM E/R
through 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 6,

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

through IPDM E/R terminal 30

to front combination lamp LH terminal 6,

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

through IPDM E/R terminal 27

to front combination lamp RH terminal 5,

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

through IPDM E/R terminal 28

to front combination lamp LH terminal 5.

HEADLAMP - XENON TYPE - LT-9
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Revision: 2006 December 2006 FX35/FX45
Ground is supplied

to front combination lamp RH and LH terminals 7

through grounds E21, E50 and E51,
With power and ground supplied, the high beam headlamps illuminate.
If voltage is applied to a high beam solenoid, the bulb shade will move, even a xenon head lamp bulb comes
out, and a high beam and a low beam are changed.
The unified meter and A/C amp. that received the high beam request signal by BCM through the CAN commu-
nication makes a high beam indicator lamp turn on in combination meter.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 2ND position (ON), and the ignition switch is turned
from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the headlamps remain illuminated for 5 minutes, then the headlamps are turned OFF.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
AUTO LIGHT OPERATION (IF EQUIPPED)
Refer to LT- 5 6 , "System Description" .
VEHICLE SECURITY SYSTEM
The vehicle security system will flash the high beams if the system is triggered. Refer to BL-180, "VEHICLE
SECURITY (THEFT WARNING) SYSTEM" .
XENON HEADLAMP
Xenon type lamps are used for to the low beam headlamps. Xenon bulbs do not use a filament. Instead, they
produce light when a high voltage current is passed between two tungsten electrodes through a mixture of
xenon (an inert gas) and certain other metal halides. In addition to strong lighting power, electronic control of
the power supply gives the headlamps stable quality and tone color.
Followings are some advantages of the xenon type headlamp.

The light produced by the headlamps is white color similar to sunlight that is easy to the eyes.

Light output is nearly double that of halogen headlamps, affording increased area of illumination.

Retroreflected luminance increases and the contrast enhances on the wet road in the rain. That makes
visibility go up more than the increase of the light volume.

Power consumption is approximately 25 percent less than halogen headlamps, reducing battery load.
CAN Communication System DescriptionNKS002V7
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitNKS002V8
Refer to LAN-32, "CAN Communication Unit" .

HEADLAMP - XENON TYPE - LT-15
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Terminals and Reference Values for BCMNKS002VB
Terminal No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
2GY Combination
switch input 5 ON Lighting, turn,
wiper switch
(Wiper intermit-
tent dial position 4) OFF Approx. 0 V
Lighting switch HIGH beam
(Operates only HIGH beam
switch)
Approx. 1.0 V
Lighting switch 2ND Approx. 2.0 V
3L/B Combination
switch input 4 ON Lighting, turn,
wiper switch
(Wiper intermit-
tent dial position 4) OFF Approx. 0 V
Any of the conditions below

Lighting switch 2ND

Lighting switch PASSING
(Operates only PASSING
switch)
Approx. 1.0 V
11 L G Ignition switch
(ACC) ACC — Battery voltage
34 W/B Combination
switch output 3 ON Lighting, turn,
wiper switch
(Wiper intermit-
tent dial position 4) OFF
Approx. 7.2 V
Any of the conditions below

Lighting switch 2ND

Lighting switch HI beam
(Operates only HI beam
switch)
Approx. 1.2 V
PKIB4959J
PKIB4953J
PKIB4959J
PKIB4960J
PKIB4958J