battery INFINITI QX56 2004 Factory Service Manual

GW-58
POWER WINDOW SYSTEM
Revision: August 20072004 QX56
Rear Power Window Switch LH or RH Power Supply and Ground Circuit CheckEIS0038X
1. CHECK POWER WINDOW POWER SUPPLY CIRCUIT
1. Disconnect rear power window switch LH or RH.
2. Turn ignition switch ON.
3. Check voltage between rear power window switch LH or RH connector D203 (LH), D303 (RH) terminals 2,
3 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness.
2. CHECK POWER WINDOW GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between rear power window switch LH or RH connector D203 (LH), D303 (RH) terminals
1, 7 and ground.
OK or NG
OK >> Rear power window switch LH or RH power supply and
ground circuit is OK. Refer to GW-36, "
Trouble Diag-
noses Symptom Chart" .
NG >> Repair or replace harness.
Rear Power Window Motor LH Circuit Check EIS0038Y
1. CHECK REAR POWER WINDOW SWITCH LH OUTPUT SIGNAL
1. Disconnect rear power window switch LH.
2. Turn ignition switch ON.
3. Check voltage between rear power window switch LH connector D203 terminals 4, 5 and ground.
OK or NG
OK >> Replace rear power window switch LH.
NG >> GO TO 2.2, 3 (G/W) - Ground : Battery voltage
LIIA1348E
1, 7 (L) - Ground : Continuity should exist.
LIIA2044E
ConnectorTerminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (-)
D2034 (W)
GroundClosing 0
Opening Battery voltage
5 (W/R)Closing Battery voltage
Opening 0
LIIA1364E

POWER WINDOW SYSTEM
GW-59
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Revision: August 20072004 QX56
2. CHECK REAR POWER WINDOW SWITCH LH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power window control unit LH.
3. Check continuity between rear power window switch LH connector D203 terminals 4, 5 and rear power
window control unit LH connector D209 terminals 9, 10.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK REAR POWER WINDOW MOTOR LH CIRCUIT
1. Disconnect rear power window motor LH.
2. Check continuity between rear power window control unit LH connector D209 terminals 11, 12 and rear
power window motor LH connector D204 terminals 1, 2.
OK or NG
OK >> Replace rear power window motor LH.
NG >> Repair or replace harness.
Rear Power Window Motor RH Circuit Check EIS0038Z
1. CHECK REAR POWER WINDOW SWITCH RH OUTPUT SIGNAL
1. Disconnect rear power window switch RH.
2. Turn ignition switch ON.
3. Check voltage between rear power window switch RH connector D303 terminals 4, 5 and ground.
OK or NG
OK >> Replace rear power window switch RH.
NG >> GO TO 2.4 (W) - 9 (W) : Continuity should exist.
5 (W/R) - 10 (W/R) : Continuity should exist.
LIIA1379E
11 (O) - 2 (O) : Continuity should exist.
12 (BR) - 1 (BR) : Continuity should exist.
LIIA1380E
ConnectorTerminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (-)
D3034 (W)
GroundClosing 0
Opening Battery voltage
5 (W/L)Closing Battery voltage
Opening 0
LIIA1364E

POWER WINDOW SYSTEM
GW-65
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Revision: August 20072004 QX56
Rear Power Vent Window Switch Circuit CheckEIS002VB
1. CHECK REAR POWER VENT WINDOW SWITCH OPERATION
1. Turn ignition switch OFF.
2. Disconnect rear power vent window switch.
3. Check continuity between rear power vent window switch terminals 1, 3 and 4.
OK or NG
OK >> GO TO 2.
NG >> Replace rear power vent window switch.
2. CHECK REAR POWER VENT WINDOW SWITCH CIRCUIT HARNESS CONTINUITY
Check continuity between rear power vent window switch connector R103 terminal 1 and ground.
OK or NG
OK >> Rear power vent window switch circuit harness OK.
NG >> Repair or replace harness.
Rear Power Vent Window Motor LH Circuit CheckEIS002VC
1. CHECK REAR POWER VENT WINDOW LH SIGNAL
1. Turn ignition switch OFF.
2. Disconnect rear power vent window motor LH.
3. Turn ignition switch ON.
4. Check voltage between rear power vent window motor LH connector B52 terminal 1, 2 and ground.
OK or NG
OK >> Replace rear power vent window motor LH.
NG >> Repair or replace harness.
Te r m i n a l
Condition Continuity
(+) (–)
31Rear power vent win-
dow switch is pressed
OPEN.Ye s
41Rear power vent win-
dow switch is pressed
CLOSE.Ye s
LIIA0956E
1 (B) - Ground : Continuity should exist.
LIIA2045E
ConnectorTerminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (-)
B521 (G)
GroundOpening Battery voltage
Closing 0
2 (Y)Opening 0
Closing Battery voltage
WIIA0290E

GW-66
POWER WINDOW SYSTEM
Revision: August 20072004 QX56
Rear Power Vent Window Motor RH Circuit CheckEIS002VD
1. CHECK REAR POWER VENT WINDOW SWITCH RH SIGNAL
1. Turn ignition switch OFF.
2. Disconnect rear power vent window motor RH.
3. Turn ignition switch ON.
4. Check voltage between rear power vent window motor RH connector B150 terminal 1, 2 and ground.
OK or NG
OK >> Replace rear power vent window motor RH.
NG >> Repair or replace harness.
Rear Power Vent Window Relay (OPEN) CheckEIS002VE
1. CHECK REAR POWER VENT WINDOW RELAY (OPEN) POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power vent window relay (OPEN).
3. Turn ignition switch ON.
4. Check voltage between rear power vent window relay (OPEN) connector and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness.
2. CHECK REAR POWER VENT WINDOW RELAY (OPEN)
Check continuity between rear power vent window relay (OPEN) terminals 3 and 4, 3 and 5.
OK or NG
OK >> GO TO 3.
NG >> Replace rear power vent window relay (OPEN).
ConnectorTerminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (-)
B1501 (BR)
GroundOpening Battery voltage
Closing 0
2 (R)Opening 0
Closing Battery voltage
WIIA0290E
ConnectorTerminals (Wire color)
Voltage (V)
(Approx.)
(+) (-)
M871 (W/L)
Ground Battery voltage
5 (W/R)
LIIA1565E
Terminal Condition Continuity
3412V direct current supply
between terminals 1 and 2No
No current supply Yes
3512V direct current supply
between terminals 1 and 2Ye s
No current supply No
WIIA0291E

POWER WINDOW SYSTEM
GW-67
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Revision: August 20072004 QX56
3. CHECK REAR POWER VENT WINDOW RELAY (OPEN) GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between rear power vent window relay (OPEN)
connector M87 terminal 4 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK REAR POWER VENT WINDOW RELAY (OPEN) CIRCUIT
1. Disconnect rear power vent window switch.
2. Check continuity between rear power vent window relay (OPEN)
connector M87 terminal 2 and rear power vent window switch
connector R103 terminal 3.
OK or NG
OK >> Replace rear power vent window switch.
NG >> Repair or replace harness.
Rear Power Vent Window Relay (CLOSE) CheckEIS002VF
1. CHECK REAR POWER VENT WINDOW RELAY (CLOSE) POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear power vent window relay (CLOSE).
3. Turn ignition switch ON.
4. Check voltage between rear power vent window relay (CLOSE) connector and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness.4 (B) - Ground : Continuity should exist.
LIIA1567E
2 (G/R) - 3 (BR/W) : Continuity should exist.
LIIA1568E
ConnectorTerminals (Wire color)
Voltage (V)
(Approx.)
(+) (-)
M891 (W/L)
Ground Battery voltage
5 (W/R)
LIIA1565E

REAR WINDOW DEFOGGER
GW-85
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Revision: August 20072004 QX56
Terminal and Reference Value for BCMEIS002VR
Terminal and Reference Value for IPDM E/REIS002VS
Work FlowEIS002VT
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to GW-79, "
System Description" .
3. According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to GW-87,
"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.)
9Y/BRear 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 W CAN-H — —
40 R CAN-L — —
67 B Ground — 0
70 W/B Battery power supply — Battery voltage
Terminal Wire color Item ConditionVoltage (V)
(Approx.)
38 B Ground (Power) — 0
39 W CAN-H — —
40 R CAN-L — —
59 B Ground (Signal) — 0
60 BRear window defogger output
signalWhen rear window defogger switch is ON. Battery voltage
When rear window defogger switch is OFF. 0

REAR WINDOW DEFOGGER
GW-89
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Revision: August 20072004 QX56
BCM Power Supply and Ground Circuit CheckEIS002VW
1. CHECK FUSES AND FUSIBLE LINK

Check 10A fuse (No. 8, located in the fuse block (J/B)]

Check 10A fuse (No. 59, located in the fuse and relay box)

Check 50A fusible link (letter f , located in the fuse and fusible link box)
NOTE:
Refer to GW-78, "
Component Parts and Harness Connector Location" .
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-
4, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between BCM connector M18, M20 terminals 38, 70
and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM.
3. Check continuity between BCM connector M20 terminal 67 and ground.
OK or NG
OK >> BCM power supply and ground circuit is OK.
NG >> Repair or replace harness.70 (W/B) - Ground : Battery voltage
38 (W/L) - Ground : Battery voltage
LIIA0914E
67 (B) - Ground : Continuity should exist.
LIIA0915E

REAR WINDOW DEFOGGER
GW-91
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Revision: August 20072004 QX56
3. CHECK BCM OUTPUT SIGNAL
1. Connect BCM.
2. Turn ignition switch ON.
3. Check voltage between BCM connector M18 terminal 9 and
ground.
OK or NG
OK >> Replace front air control.
NG >> Replace BCM.
Rear Window Defogger Power Supply Circuit CheckEIS002VY
1. CHECK FUSE
Check if any of the following fuses in IPDM E/R are blown.
NOTE:
Refer to GW-78, "
Component Parts and Harness Connector Location" .
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 GW-
78, "Component Parts and Harness Connector Location" .
2. CHECK REAR WINDOW DEFOGGER RELAY OUTPUT SIGNAL
Check voltage between IPDM E/R connector E124 terminal 60 and ground.
OK or NG
OK >> Replace IPDM E/R.
NG >> Repair or replace harness.9 (Y/B) - Ground : Approx. 5
LIIA0402E
COMPONENT PARTS AMPERE FUSE NO.
IPDM E/R15A 46
15A 47
60 (B) - Ground : Battery voltage
WIIA0525E

GW-92
REAR WINDOW DEFOGGER
Revision: August 20072004 QX56
Rear Window Defogger Circuit CheckEIS002VZ
1. CHECK REAR WINDOW DEFOGGER POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear window defogger.
3. Turn ignition switch ON.
4. Check voltage between rear window defogger connector D406 terminal + and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness.
2. CHECK REAR WINDOW DEFOGGER GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between rear window defogger connector D604 terminal - and ground.
OK or NG
OK >> Check filament. Refer to GW-96, "Filament Check" .

If filament is OK, check the condition of the harness
and the connector.

If filament is NG, repair filament.
NG >> Repair or replace harness.
Door Mirror Defogger Power Supply Circuit CheckEIS002W1
1. CHECK FUSE
Check if the following fuse in the IPDM E/R is blown.
NOTE:
Refer to GW-78, "
Component Parts and Harness Connector Location" .
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
GW-78, "
Component Parts and Harness Connector Location" .
ConnectorTerminal (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
D406 + (B) GroundRear window defogger
switch ON. Battery voltage
Rear window defogger
switch OFF.0
LIIA2048E
- (B) - Ground : Continuity should exist.
LIIA0409E
COMPONENT PARTS AMPERE FUSE NO.
IPDM E/R 15A 43

REAR WINDOW DEFOGGER
GW-93
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Revision: August 20072004 QX56
2. CHECK DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT 2
1. Turn ignition switch ON.
2. Check voltage between IPDM E/R connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Replace IPDM E/R.
3. CHECK DOOR MIRROR DEFOGGER CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R and door mirror LH or RH.
3. Check continuity between IPDM E/R connector E120 terminal 23 and door mirror connector D4 (LH) or
D107 (RH) terminal 10.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK DOOR MIRROR DEFOGGER GROUND CIRCUIT
Check continuity between each door mirror connector D4 (LH) or D107 (RH) terminal 11 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness.
ConnectorTerminal (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
E12023
(GR/W)GroundRear window defogger
switch ON Battery voltage
Rear window defogger
switch OFF0
LIIA2049E
23 (GR/W) - 10 (GR/W) : Continuity should exist.
WIIA0527E
11 (B) - Ground : Continuity should exist.
LIIA1454E