Key switch INFINITI FX35 2005 Service Manual

LAN-386
[CAN]
CAN SYSTEM (TYPE 8)
Revision: 2005 July 2005 FX
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect AWD control unit connector.
2. Check resistance between AWD control unit harness connector M92 terminals 8 (L) and 16 (R).
OK or NG
OK >> Replace AWD control unit.
NG >> Repair harness between AWD control unit and harness
connector M82.
ICC Unit Circuit InspectionAKS00CB5
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of ICC unit for damage, bend and loose connection (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 ICC unit connector.
2. Check resistance between ICC unit harness connector M88 ter- minals 14 (L) and 5 (R).
OK or NG
OK >> Replace ICC unit.
NG >> Repair harness between ICC unit and harness connec- tor M82.
Intelligent Key Unit Circuit InspectionAKS00CB6
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of Intelligent Key unit for damage, bend and loose connection (unit side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector. 8 (L) - 16 (R) : Approx. 54 - 66
Ω
SKIA6889E
14 (L) - 5 (R) : Approx. 54 - 66Ω
SKIA6886E

CAN SYSTEM (TYPE 8) LAN-387
[CAN]
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2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check resistance between Intelligent Key unit harness connec- tor M34 terminals 2 (L) and 3 (R).
OK or NG
OK >> Replace Intelligent Key unit.
NG >> Repair harness between Intelligent Key unit and data
link connector.
Data Link Connector Circuit InspectionAKS00CB7
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check data link connector and terminals for damage, bend and loose connection (connector side and har- ness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
Check resistance between data link connector M5 terminals 6 (L)
and 14 (R).
OK or NG
OK >> Diagnose again. Refer to LAN-7, "TROUBLE DIAG-
NOSES WORK FLOW" .
NG >> Repair harness between data link connector and BCM.
BCM Circuit InspectionAKS00CB8
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of BCM for damage, bend and loose connection (control module side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector. 2 (L) - 3 (R) : Approx. 54 - 66
Ω
SKIA6887E
6 (L) - 14 (R) : Approx. 54 - 66Ω
PKIA9865E

LAN-392
[CAN]
CAN SYSTEM (TYPE 8)
Revision: 2005 July 2005 FX
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect IPDM E/R connector.
2. Check resistance between IPDM E/R harness connector E9 ter- minals 48 (L) and 49 (R).
OK or NG
OK >> Replace IPDM E/R.
NG >> Repair harness between IPDM E/R and harness con-
nector B8.
CAN Communication Circuit InspectionAKS00CBF
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, control unit side, unit side, sensor side, meter side and harness side).
–ECM
–A/T assembly
–Display control unit
–AWD control unit
–ICC unit
–Intelligent Key unit
–BCM
–Steering angle sensor
–LDW camera unit
–Unified meter and A/C amp.
–ICC sensor
–ABS actuator and electric unit (control unit)
–Driver seat control unit
–IPDM E/R
–Between ECM and IPDM E/R
–Between ECM and A/T assembly
–Between ECM and LDW camera unit
–Between ECM and driver seat control unit
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector. 48 (L) - 49 (R) : Approx. 108 - 132
Ω
SKIB1363E

LAN-398
[CAN]
CAN SYSTEM (TYPE 8)
Revision: 2005 July 2005 FX
16. CHECK ECM AND IPDM E/R INTERNAL CIRCUIT
1. Remove ECM and IPDM E/R from vehicle.
2. Check resistance between ECM terminals 94 and 86.
3. Check resistance between IPDM E/R terminals 48 and 49.
OK or NG
OK >> GO TO 17.
NG >> Replace ECM and/or IPDM E/R.
17. 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.
OK or NG
OK >> GO TO 18.
NG >> Refer to LAN-16, "
Example of Filling in Check Sheet When Initial Conditions Are Not Reproduced"
.
18. CHECK UNIT REPRODUCIBILITY
Performs the following procedure for each unit, 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. (Do not confuse it with the symptom related to removed unit.)
6. Make sure that the same symptom is reproduced.
–A/T assembly
–Display control unit
–AWD control unit
–ICC unit
–Intelligent Key unit
–BCM
–Steering angle sensor
–LDW camera unit
–Unified meter and A/C amp.
–ICC sensor
–ABS actuator and electric unit (control unit)
–Driver seat control unit
–ECM
–IPDM E/R
Check results
Reproduce>>Install removed unit, and then check the other unit.
Not reproduced>>Replace removed unit. 94 - 86 : Approx. 108 - 132
Ω
48 - 49 : Approx. 108 - 132 Ω
LKIA0037E

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LIGHTING AND TURN SIGNAL SWITCH .............
..110
Removal and Installation ..................................... .. 110
REMOVAL ........................................................ .. 110
INSTALLATION ................................................ .. 110
HAZARD SWITCH ................................................. .. 111
Removal and Installation ..................................... . . 111
REMOVAL ........................................................ . . 111
INSTALLATION ................................................ . . 111
COMBINATION SWITCH ....................................... ..112
Wiring Diagram — COMBSW — ......................... .. 112
Combination Switch Reading Function ............... .. 113
CONSULT-II Functions (BCM) ............................ .. 113
CONSULT-II BASIC OPERATION .................... .. 113
DATA MONITOR .............................................. .. 114
Combination Switch Inspection ........................... .. 115
Removal and Installation ..................................... .. 117
STOP LAMP .......................................................... ..118
Component Parts and Harness Connector Location .. 118
System Description ............................................. .. 118
Schematic ........................................................... .. 119
Wiring Diagram — STOP/L — ............................. . 120
Stop Lamp Does Not Operate ............................. . 123
High-Mounted Stop Lamp ................................... . 125
BULB REPLACEMENT, REMOVAL AND
INSTALLATION ................................................ . 125
Stop Lamp ........................................................... . 125
BULB REPLACEMENT .................................... . 125
REMOVAL AND INSTALLATION ..................... . 125
Rear Combination Lamp Control Unit ................. . 125
REMOVAL AND INSTALLATION ..................... . 125
STEP LAMP ........................................................... . 126
Front Door Step Lamp ......................................... . 126
BULB REPLACEMENT, REMOVAL AND
INSTALLATION ................................................ . 126
Rear Door Step Lamp ......................................... . 126
BULB REPLACEMENT, REMOVAL AND
INSTALLATION ................................................ . 126
BACK-UP LAMP ................................................... . 127
Wiring Diagram — BACK/L — ............................ . 127
Bulb Replacement ............................................... . 128
Removal and Installation ..................................... . 128
PARKING, LICENSE PLATE AND TAIL LAMPS .. . 129
Component Parts and Harness Connector Location . 129
System Description ............................................. . 129
OUT LINE ......................................................... . 129
OPERATION BY LIGHTING SWITCH ............. . 130
COMBINATION SWITCH READING FUNCTION . 131
EXTERIOR LAMP BATTERY SAVER CONTROL . 131
CAN Communication System Description ........... . 131
CAN Communication Unit ................................... . 131
Schematic ........................................................... . 132
Wiring Diagram — TAIL/L — ............................... . 133
Terminals and Reference Values for BCM .......... . 138
Terminals and Reference Values for IPDM E/R .. . 138
How to Proceed With Trouble Diagnosis ............. . 139
Preliminary Check ............................................... . 139
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ................................................................. . 139
CONSULT-II Functions (BCM) ............................ . 140 CONSULT-II Functions (IPDM E/R) .....................
.140
Parking, License Plate and Side Marker Lamps Do
Not Illuminate ....................................................... .140
Tail Lamp Does Not Operate ............................... .146
Parking, License Plate, Side Maker and Tail Lamps
Do Not Turn OFF (After Approx. 10 Minutes) ...... .147
License Plate Lamp ............................................. .147
BULB REPLACEMENT, REMOVAL AND
INSTALLATION ................................................ .147
Front Parking Lamp ............................................. .148
BULB REPLACEMENT .................................... .148
REMOVAL AND INSTALLATION ..................... .148
Tail Lamp ............................................................. .148
BULB REPLACEMENT .................................... .148
REMOVAL AND INSTALLATION ..................... .148
Front Side Marker Lamp ...................................... .148
BULB REPLACEMENT .................................... .148
REMOVAL AND INSTALLATION ..................... .148
Rear Side Marker Lamp ...................................... .148
BULB REPLACEMENT .................................... .148
REMOVAL AND INSTALLATION ..................... .148
Rear Combination Lamp Control Unit .................. .148
REMOVAL AND INSTALLATION ..................... .148
REAR COMBINATION LAMP ................................ .149
Bulb Replacement ............................................... .149
REAR FENDER SIDE (REAR SIDE MARKER
LAMP BULB) .................................................... .149
BACK DOOR SIDE (BACK-UP LAMP) ............ .149
Removal and Installation ..................................... .149
REMOVAL ........................................................ .149
INSTALLATION ................................................ .150
VANITY MIRROR LAMP ........................................ .151
Bulb Replacement ............................................... .151
MAP LAMP ............................................................ .152
Bulb Replacement ............................................... .152
Removal and Installation ..................................... .152
REMOVAL ........................................................ .152
INSTALLATION ................................................ .152
PERSONAL LAMP ................................................ .153
Bulb Replacement ............................................... .153
Removal and Installation ..................................... .153
REMOVAL ........................................................ .153
INSTALLATION ................................................ .153
LUGGAGE ROOM LAMP ...................................... .154
Bulb Replacement ............................................... .154
Removal and Installation ..................................... .154
REMOVAL ........................................................ .154
INSTALLATION ................................................ .154
IGNITION KEY HOLE ILLUMINATION .................. .155
Bulb Replacement, Removal and Installation ...... .155
GLOVE BOX LAMP ............................................... .156
Bulb Replacement, Removal and Installation ...... .156
ASHTRAY ILLUMINATION .................................... .157
Bulb Replacement and Removal and Installation . 157
CIGARETTE LIGHTER ILLUMINATION ................ .158
Bulb Replacement and Removal and Installation . 158
INTERIOR ROOM LAMP ....................................... .159
Component Parts and Harness Connector Location .159
System Description .............................................. .159

LT-4Revision: 2005 July 2005 FX
POWER SUPPLY AND GROUND ....................
.160
SWITCH OPERATION ..................................... .161
ROOM LAMP TIMER OPERATION .................. .162
INTERIOR LAMP BATTERY SAVER CONTROL .163
Schematic ............................................................ .165
Wiring Diagram — ROOM/L — ............................ .167
Terminals and Reference Values for BCM ........... .175
How to Proceed With Trouble Diagnosis ............. .176
Preliminary Check ............................................... .176
CHECK FOR POWER SUPPLY AND GROUND
CIRCUIT ........................................................... .176
CONSULT-II Functions (BCM) ............................. .177
CONSULT-II BASIC OPERATION .................... .177
WORK SUPPORT ............................................ .178
DATA MONITOR ............................................... .178
ACTIVE TEST .................................................. .179
Interior Room Lamp Control Does Not Operate .. .180
Map Lamp Control Does Not Operate ................. .181
Personal Lamp Control Does Not Operate .......... .183
Ignition Key Hole Illumination Control Does Not
Operate ................................................................ .184
All Step Lamps Do Not Operate ........................... .186
All Interior Room Lamps Do Not Operate ............ .187
Bulb Replacement ............................................... .187 INTERIOR ROOM LAMP ..................................
.187
MAP LAMP ....................................................... .187
PERSONAL LAMP ............................................ .187
Removal and Installation ...................................... .188
INTERIOR ROOM LAMP .................................. .188
MAP LAMP ....................................................... .188
PERSONAL LAMP ............................................ .188
ILLUMINATION ....................................................... .189
System Description .............................................. .189
ILLUMINATION OPERATION BY LIGHTING
SWITCH ............................................................ .189
EXTERIOR LAMP BATTERY SAVER CONTROL .190
CAN Communication System Description ........... .190
CAN Communication Unit .................................... .191
Schematic ............................................................ .192
Wiring Diagram — ILL — ..................................... .194
Removal and Installation ...................................... .202
ILLUMINATION CONTROL SWITCH ............... .202
GLOVE BOX LAMP .......................................... .202
FRONT DOOR INSIDE ILLUMINATION ........... .202
BULB SPECIFICATIONS ....................................... .203
Headlamp ............................................................. .203
Exterior Lamp ....................................................... .203
Interior Lamp/Illumination ..................................... .203

TURN SIGNAL AND HAZARD WARNING LAMPS LT-93
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to grounds M35, M45 and M85

through hazard switch terminal 1.
When the hazard switch is depressed, BCM output turn signal from BCM terminals 45 and 46, interpreting it as
turn signal is ON.
Connected from BCM terminal 45 and 46 to front combination lamp terminal 4.
Turn signal lamp turns ON

through front combination lamp terminal 8

to grounds E21, E50 and E51.
Connected form BCM terminals 45 and 46 to rear combination lamp control unit terminals 4 and 5.
Rear turn signal (LED) turns ON

through rear combination lamp control unit terminal 11

to rear combination lamp LH terminal 3,

through rear combination lamp LH terminal 4

to rear combination lamp control unit terminal 10,

through rear combination lamp control unit terminal 9

to rear combination lamp RH terminal 3,

through rear combination lamp RH terminal 4

to rear combination lamp control unit terminal 8.
BCM sends signal to the unified meter and A/C amp. through CAN communication lines, and turns ON turn
signal indicator lamp with combination meter.
When rear turn signal lamp (LED) does not turn ON, rear combination lamp control unit sends signal to combi-
nation meter. And then unified meter and A/C amp. ends turn LED burnout status signal to BCM through CAN
communication lines for speeding up turn signal blinking.
REMOTE CONTROL ENTRY SYSTEM OPERATION
Power is supplied at all times

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

to BCM terminal 55,

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

to combination meter terminal 8,

through 10A fuse [No. 20, located in fuse block (J/B)]

to rear combination lamp control unit terminal 1.
Ground is supplied

to BCM terminals 49 and 52

through grounds M35, M45 and M85,

to rear combination lamp control unit terminal 7

through grounds E21, E50 and E51,

to combination meter terminals 5, 6 and 15

through grounds M35, M45 and M85.
When the remote control entry system is triggered by input from key fob, BCM output turn signal from BCM
terminals 45 and 46, interpreting it as turn signal is ON.
Connected from BCM terminals 45 and 46 to front combination lamp terminal 4.
Turn signal lamp turns ON

through front combination lamp terminal 8

to grounds E21, E50 and E51.
Connected form BCM terminals 45 and 46 to rear combination lamp control unit terminals 4 and 5.
Rear turn signal (LED) turns ON

through rear combination lamp control unit terminal 11

to rear combination lamp LH terminal 3,

through rear combination lamp LH terminal 4

to rear combination lamp control unit terminal 10,

through rear combination lamp control unit terminal 9

LT-94
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2005 July 2005 FX

to rear combination lamp RH terminal 3,

through rear combination lamp RH terminal 4

to rear combination lamp control unit terminal 8.
BCM sends signal to the unified meter and A/C amp. through the CAN communication lines, and turns ON turn
signal indicator lamp with combination meter.
With power and input supplied, BCM controls the flashing of hazard warning lamps when key fob is used to
activate remote control entry system.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
CAN Communication System DescriptionAKS007CX
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 UnitAKS0080W
Refer to LAN-30, "CAN Communication Unit" .

INTERIOR ROOM LAMP LT-159
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INTERIOR ROOM LAMPPFP:26410
Component Parts and Harness Connector LocationAKS007O8
System DescriptionAKS007F7
When the room lamp and personal lamp switch is in DOOR position, room lamp and personal lamp ON/OFF is
controlled by timer according to signals from switches including key switch, front door switch driver side,
unlock signal from keyfob, door lock and unlock switch, key cylinder lock and unlock switch, ignition switch.
PKIB3507E

LT-160
INTERIOR ROOM LAMP
Revision: 2005 July 2005 FX
When the room lamp and personal lamp turns ON, there is a gradual brightening over 1 second. When room
lamp and personal lamp turns OFF, there is a gradual dimming over 1 second.
The room lamp and personal lamp timer is controlled by the BCM (body control module).
Room lamp and personal lamp timer control settings can be changed with CONSULT-II.
Ignition keyhole illumination turns ON at time when driver door is opened (door switch ON) or removed keyfob
from key cylinder. Illumination turns OFF when driver door is closed (door switch OFF).
Step lamp turns ON at time when driver door or passenger door is opened (door switch ON). Lamp turns OFF
when the driver, passenger doors are closed (all door switches OFF).
POWER SUPPLY AND GROUND
Power is supplied at all times (without Intelligent Key system)

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

to key switch terminal 2, and

to BCM terminal 42,

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

to BCM terminal 55,

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

to combination meter terminal 8.
Power is supplied at all times (with Intelligent Key system)

through 10A fuse (No.38, located in fuse, fusible link and relay box)

to key switch and ignition knob switch terminal 1,

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

to BCM terminal 42,

to key switch and ignition knob switch terminal 3,

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

to BCM terminal 55,

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

to combination meter terminal 8.
When key plate inserted to key switch, power is supplied (without Intelligent Key system)

through key switch terminal 1

to BCM terminal 37.
When inserted key plate to key switch, power is supplied (with Intelligent Key system)

through key switch and ignition knob switch terminal 4

to BCM terminal 37.
When moved ignition knob switch, power is supplied (with Intelligent Key system)

through ignition knob switch terminal 2

to intelligent key unit terminal 27.
With ignition switch in the ON or START position, power is supplied

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

to BCM terminal 38.
Ground is supplied

to BCM terminals 49 and 52

through grounds terminals M35, M45 and M85.
When driver side door is opened, ground is supplied

through case ground of front door switch (driver side)

through front door switch (driver side) terminal 1

to BCM terminal 62.
When passenger side door is opened, ground is supplied

through case ground of front door switch (passenger side)

through front door switch (passenger side) terminal 1

to BCM terminal 12.