Power supply INFINITI FX35 2004 Service Manual

GW-48
POWER WINDOW SYSTEM
Revision: 2004 November 2004 FX35/FX45
2. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power window switch (LH or RH) connector.
3. Check continuity between rear power window switch (LH or RH)
connector D58 (LH), D78 (RH) terminal 11 and ground.
OK or NG
OK >> Rear power window switch (LH or RH) power supply
and ground circuit are OK. Refer to symptom chart.
NG >> Repair or replace harness.
3. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect BCM and rear power window switch (LH or RH) connector.
3. Check continuity between BCM connector M4 terminal 54 and
rear power window switch (LH or RH) connector D58 (LH), D78
(RH) terminal 10.
4. Check continuity between BCM connector M4 terminal 54 and
ground.
OK or NG
OK >> Check condition of harness and connector.
NG >> Repair or replace harness.
Front Power Window Motor (Driver Side) Circuit CheckAIS004QI
1. CHECK POWER WINDOW MAIN SWITCH OUTPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between power window main switch connector
and ground.
OK or NG
OK >> GO TO 2.
NG >> Replace power window main switch.11 (B) – Ground : Continuity should exist.
PIIA6294E
54 (W) – 10 (W) : Continuity should exist.
54 (W) – Ground : Continuity should not exist.
PIIA6295E
ConnectorTerminals (Wire color)
Window conditionVoltage [V]
(Approx.)
(+) (-)
D68 (L)
GroundUP Battery voltage
DOWN 0
11 ( B )UP 0
DOWN Battery voltage
PIIA4179E

GW-50
POWER WINDOW SYSTEM
Revision: 2004 November 2004 FX35/FX45
Rear Power Window Motor (LH) Circuit Check / With Front Anti-pinch Power
Window System
AIS004QK
1. CHECK POWER WINDOW SWITCH OUTPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between rear power window switch (LH) connec-
tor and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK HARNESS CONTINUITY 1
1. Turn ignition switch OFF.
2. Disconnect rear power window switch (LH) and rear power window motor (LH) connector.
3. Check continuity between rear power window switch (LH) con-
nector D55 terminal 4, 5 and rear power window motor (LH) con-
nector D56 terminal 1, 2.
OK or NG
OK >> Replace rear power window motor (LH).
NG >> Repair or replace harness between rear power window
switch (LH) and rear power window motor (LH).
3. CHECK REAR POWER WINDOW SWITCH POWER SUPPLY
1. Connect rear power window switch (LH) connector.
2. Turn ignition switch ON.
3. Check voltage between rear power window switch (LH) connec-
tor D55 terminal 1 and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
ConnectorTerminals (Wire color)
Window conditionVoltage [V]
(Approx.)
(+) (-)
D554 (L)
GroundUP 0
DOWN Battery voltage
5 (G)UP Battery voltage
DOWN 0
PIIA6282E
4 (L) – 1 (L) : Continuity should exist.
5 (G) – 2 (G) : Continuity should exist.
PIIA9958E
1 (BR) – Ground : Battery voltage
PIIA4185E

POWER WINDOW SYSTEM
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Revision: 2004 November 2004 FX35/FX45
3. CHECK REAR POWER WINDOW SWITCH POWER SUPPLY
1. Connect rear power window switch (RH) connector.
2. Turn ignition switch ON.
3. Check voltage between rear power window switch (RH) connec-
tor D75 terminal 1 and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. CHECK HARNESS CONTINUITY 2
1. Turn ignition switch OFF.
2. Disconnect BCM and rear power window switch (RH) connector.
3. Check continuity between BCM connector M4 terminal 53 and
rear power window switch (RH) connector D75 terminal 1.
4. Check continuity between BCM connector M4 terminal 53 and
ground.
OK or NG
OK >> Check condition of harness and connector.
NG >> Repair or replace harness.
5. CHECK REAR POWER WINDOW SWITCH
1. Turn ignition switch OFF.
2. Disconnect rear power window switch connector.
3. Rear power window switch (RH) operate, check continuity
between rear power window switch terminals1, 2, 3 and 4, 5.
OK or NG
OK >> GO TO 6.
NG >> Replace rear power window switch (RH).1 (BR) – Ground : Battery voltage
PIIA4185E
53 (Y/B) – 1 (BR) : Continuity should exist.
53 (Y/B) – Ground : Continuity should not exist.
PIIA6284E
Terminals Window condition Continuity
15 UP
Ye s 14 DOWN
2 5 No operation
3 4 No operation
PIIA4186E

POWER WINDOW SYSTEM
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Revision: 2004 November 2004 FX35/FX45
Encoder Circuit Check (Driver Side) AIS004QQ
1. CHECK FRONT POWER WINDOW MOTOR (DRIVER SIDE) POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between front power window motor (driver side)
connector D8 terminal 4 and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. CHECK HARNESS CONTINUITY 1
1. Turn ignition switch OFF.
2. Disconnect power window main switch and front power window motor (driver side).
3. Check continuity between power window main switch connector
D6 terminal 15 and front power window motor (driver side) con-
nector D8 terminal 4.
OK or NG
OK >> Replace power window main switch.
NG >> Repair or replace harness between power window main
switch and front power window motor (driver side).
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front power window motor (driver side) connector.
3. Check continuity between front power window motor (driver
side) connector D8 terminal 6 and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.4 (W) – Ground : Approx.10V
PIIA9973E
15 (W) – 4 (W) : Continuity should exist.
PIIA9974E
6 (SB) – Ground : Continuity should exist.
PIIA9961E

POWER WINDOW SYSTEM
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Revision: 2004 November 2004 FX35/FX45
Encoder Circuit Check (Passenger Side)AIS004QR
1. CHECK FRONT POWER WINDOW MOTOR (PASSENGER SIDE) POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between front power window motor (passenger
side) connector D38 terminal 4 and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. CHECK HARNESS CONTINUITY 1
1. Turn ignition switch OFF.
2. Disconnect front power window switch (passenger side) and front power window motor (passenger side)
connector.
3. Check continuity between front power window switch (passen-
ger side) connector D36 terminal 4 and front power window
motor (passenger side) connector D38 terminal 4.
OK or NG
OK >> Replace front power window switch (passenger side).
NG >> Repair or replace harness between front power window
switch (passenger side) and front power window motor
(passenger side).
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front power window motor (passenger side) connector.
3. Check continuity between front power window motor (passenger
side) connector D38 terminal 6 and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.4 (R) – Ground : Approx.10V
PIIA9976E
4 (R) – 4 (R) : Continuity should exist.
PIIA9977E
6 (SB) – Ground : Continuity should exist.
PIIA9966E

POWER WINDOW SYSTEM
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Revision: 2004 November 2004 FX35/FX45
Encoder Circuit Check (Rear LH or RH) / With Front and Rear Power Window
Anti-pinch System
AIS004QS
1. CHECK REAR POWER WINDOW MOTOR (LH OR RH) POWER SUPPLY
1. Turn ignition switch ON.
2. Check voltage between rear power window switch connector
D58 (LH), D78 (RH) terminal 4 and ground.
OK or NG
OK >> GO TO 2.
NG >> Replace rear power window switch (LH or RH).
2. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power window motor (LH or RH) connector.
3. Check continuity between rear power window motor (LH or RH)
connector D59 (LH), D79 (RH) terminal 4 and ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. CHECK HARNESS CONTINUITY 1
1. Disconnect rear power window switch (LH or RH) connector.
2. Check continuity between rear power window switch (LH or RH)
connector D58 (LH), D78 (RH) terminal 3 and rear power win-
dow motor (LH or RH) connector D59 (LH), D79 (RH) terminal 4.
OK or NG
OK >> Replace rear power window switch (LH or RH).
NG >> Repair or replace harness between rear power window
switch (LH or RH) and rear power window motor (LH or
RH). 4 (PU) – Ground : Approx. 10V
PIIA6305E
4 (OR) – Ground : Continuity should exist.
PIIA9970E
3 (OR) – 4 (OR) : Continuity should exist.
PIIA9971E

GW-94
REAR WINDOW DEFOGGER
Revision: 2004 November 2004 FX35/FX45
Terminal and Reference Value for BCMAIS004R4
Terminal and Reference Value for IPDM E/RAIS004R5
Work FlowAIS004R6
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to GW-86, "
System Description" .
3. According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to GW-97,
"Trouble Diagnoses Symptom Chart" .
4. Does rear window defogger operate normally? YES: GO TO 5, NO: GO TO 3.
5. INSPECTION END.
Terminal Wire color Item ConditionVoltage (V)
(Approx.)
9L/WRear window defogger
switch signalWhen rear window defogger switch is pressed. 0
When rear window defogger switch is OFF. 5
38 W/L Ignition switch ON or START Ignition switch (ON or START position) Battery voltage
39 L CAN− H——
40 R CAN− L——
42 L/R Battery power supply — Battery voltage
49 B Ground (signal) — 0
52 B Ground (power) — 0
55 G Battery power supply — Battery voltage
Terminal Wire color Item ConditionVoltage (V)
(Approx.)
5 R Battery power supply — Battery voltage
6 W Battery power supply — Battery voltage
38 B Ground (Power) — 0
48 L CAN− H——
49 R CAN− L——
52 GRear window defogger relay
control signalWhen rear window defogger switch is ON. 0
When rear window defogger switch is OFF. Battery voltage
60 B Ground (Signal) — 0

REAR WINDOW DEFOGGER
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Revision: 2004 November 2004 FX35/FX45
Trouble Diagnoses Symptom ChartAIS004R8

Make sure other systems using the signal of the following systems operate normally.
BCM Power Supply and Ground Circuit CheckAIS004R9
First perform the “SELF-DIAG RESULTS” in “BCM” with CONSULT-II, when perform the each trouble
diagnosis. Refer to BCS-14, "
CAN Communication Inspection Using CONSULT-II (Self-Diagnosis)" .
1. CHECK FUSE

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

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

Check 50A fusible link (letter M located in the fuse and fusible link box).
NOTE:
Refer to GW-86, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown out, 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 ON.
2. Check voltage between BCM connector M3, M4 terminal 38, 42,
55 and ground.
OK or NG
OK >> GO TO 3.
NG >> Check BCM power supply circuit for open or short.
Symptom Diagnoses / Service procedure Refer to page
Rear window defogger and door mirror defogger do not
operate. 1. BCM power supply and ground circuit check.GW-97
2. IPDM E/R auto active test checkPG-24
3. Rear window defogger switch circuit checkGW-98
4. Rear window defogger power supply circuit checkGW-100
5. Replace IPDM E/ RPG-30
Rear window defogger does not operate but both of door
mirror defogger operate.1. Rear window defogger circuit checkGW-102
2. Filament checkGW-107
Door mirror defogger does not operated but both of rear
window defogger operate. 1. Door mirror defogger power supply circuit checkGW-103
Driver side door mirror defogger does not operate. 1. Driver side door mirror defogger circuit checkGW-104
Passenger side door mirror defogger does not operate. 1. Passenger side door mirror defogger circuit checkGW-105
Rear window defogger switch does not light, and rear win-
dow defogger is not displayed on the display.
But rear window defogger operates. 1. Rear window defogger signal checkGW-106
38 (W/L) – Ground : Battery voltage
42 (L/R) – Ground : Battery voltage
55 (G) – Ground : Battery voltage
PIIA6160E

GW-98
REAR WINDOW DEFOGGER
Revision: 2004 November 2004 FX35/FX45
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM connector M4 terminal 49, 52
and ground.
OK or NG
OK >> Power supply and ground circuit are OK.
NG >> Check BCM ground circuit for open or short.
Rear Window Defogger Switch Circuit CheckAIS004RA
1. CHECK REAR WINDOW DEFOGGER SWITCH OPERATION
With CONSULT-II
Check (“REAR DEF SW”, “IGN ON SW”) in DATA MONITOR mode with CONSULT-II.
Without CONSULT-II
1. Turn ignition switch ON.
2. Check voltage between BCM connector ground.
OK or NG
OK >> Rear window defogger switch is OK.
NG >> GO TO 2.49 (B) – Ground : Continuity should exist.
52 (B) – Ground : Continuity should exist.
PIIA6161E
When rear window defogger switch is turned to ON
REAR DEF SW : ON
When ignition switch is turned to ON
IGN ON SW : ON
PIIA2373E
ConnectorTerminal (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
M3 9 (L/W) GroundRear window defogger
switch is pressed.0
Rear window defogger
switch is OFF.5
PIIA6208E

GW-100
REAR WINDOW DEFOGGER
Revision: 2004 November 2004 FX35/FX45
Rear Window Defogger Power Supply Circuit CheckAIS004RB
1. CHECK FUSE

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

Check 20A fuse (No.75, located in the IPDM E/R)

Check 20A fuse (No.80, located in the IPDM E/R)
NOTE:
Refer to GW-86, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown out, 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. Remove rear window defogger relay.
3. Turn ignition switch ON.
4. Check voltage between rear window defogger relay connector
and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between fuse block (J/B) and
rear window defogger relay.
3. CHECK REAR WINDOW DEFOGGER RELAY
Check continuity between rear window defogger terminals 3 and 5, 6
and 7.
OK or NG
OK >> GO TO 4.
NG >> Replace rear window defogger relay.
ConnectorTerminals (Wire color)
Voltage (V)
(Approx.)
(+) (-)
E131 (OR)
Ground Battery voltage 3 (W)
6 (R)
PIIA4233E
Terminal Condition Continuity
3512V direct current supply
between terminals 1 and 2Ye s
No current supply No
6712V direct current supply
between terminals 1 and 2Ye s
No current supply No
SEC202B