2004 INFINITI QX56 Factory Service Manual

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INFINITI QX56 2004 Factory Service Manual BL-116
AUTOMATIC BACK DOOR SYSTEM
Revision: August 20072004 QX56
4. Using the inside emergency release lever, open the back door.
5. Have an assistant press and hold the back door handle switch.
6. Wh

BL-116
AUTOMATIC BACK DOOR SYSTEM
Revision: August 20072004 QX56
4. Using the inside emergency release lever, open the back door.
5. Have an assistant press and hold the back door handle switch.
6. While the assistant continues to hold the back door handle switch, turn ignition switch ON (DO NOT start
engine).
7. After approximately 5 seconds, the back door warning chime will sound for 0.5 seconds.
8. Release the back door handle switch.
9. Within 8 seconds of the back door warning chime sounding, press the power liftgate switch 5 times in
rapid succession.
10. After approximately 5 seconds, the back door warning chime will sound for 1 second.
11. Release the power liftgate switch.
12. Immediately close the back door manually.
13. Press and release the power liftgate switch to activate operating check mode.
Self-diagnosis results are indicated by the back door warning chime.
Turn ignition switch OFF to end input signal check mode.
Diagnosis ChartEIS002T1
Back door warning chime order Back door warning chime length
Start self-diagnosis1.5 seconds
OK NG
1. Operating conditions diagnosis 0.5 seconds 0.2 seconds
2. Back door encoder diagnosis 0.5 seconds 0.2 seconds
3. Back door clutch diagnosis 0.5 seconds 0.2 seconds
4. Back door motor diagnosis 0.5 seconds 0.2 seconds
5. Cinch latch motor diagnosis 0.5 seconds 0.2 seconds
Restart self-diagnosis 1.5 seconds
Item NG Result Refer to
1. Operating conditions diagnosis resultOne of the following operating conditions no
longer met: ignition switch ON, back door
close switch (CANCEL) ON, A/T selector lever
in P position—
2. Back door encoder diagnosis resultSensor diagnosis/short, pulse signal, pulse
signal directionBL-117
3. Back door clutch diagnosis result Back door clutch does not operateBL-124
4. Back door motor diagnosis resultBack door motor does not operate (no operat-
ing current)BL-117
5. Cinch latch motor diagnosis resultCinch latch motor does not operate (no oper-
ating current)BL-128
Symptom Suspect systems Refer to
Automatic operations are not executed from the back door fully
closed or fully open position.
(Auto closure operates normally.)Power liftgate switch system inspectionBL-118
Park switch —
Power window serial linkBL-114
Pinch strip system inspectionBL-122
Automatic operations are not carried out together with open/close
operations.
(Manual operations are normal.)Power liftgate switch system inspectionBL-118Back door close switch system inspectionBL-120
Auto back door power supply and ground cir-
cuit system inspection.BL-117
The auto closure function does not operate.
(Stops at the halfway position for auto closing operations.)Pinch strip system inspectionBL-122

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INFINITI QX56 2004 Factory Service Manual AUTOMATIC BACK DOOR SYSTEM
BL-117
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Revision: August 20072004 QX56
Back Door Power Supply and Ground Circuit InspectionEIS002T2
1. BACK DOOR POWER SUPPLY CIRCUIT INSPECTION
1.

Page 883 of 3371

INFINITI QX56 2004 Factory Service Manual BL-118
AUTOMATIC BACK DOOR SYSTEM
Revision: August 20072004 QX56
Power Liftgate Switch System InspectionEIS002T3
1. POWER LIFTGATE SWITCH FUNCTION INSPECTION
Check power liftgate switch using switch o

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INFINITI QX56 2004 Factory Service Manual AUTOMATIC BACK DOOR SYSTEM
BL-119
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Revision: August 20072004 QX56
GLASS HATCH AJAR SWITCH CHECK
1. CHECK GLASS HATCH AJAR SWITCH INPUT SIGNAL
With CONSULT-II
Check glass hatch

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INFINITI QX56 2004 Factory Service Manual BL-120
AUTOMATIC BACK DOOR SYSTEM
Revision: August 20072004 QX56
3. CHECK GLASS HATCH AJAR SWITCH
Check continuity between glass hatch ajar switch connector terminal
and ground.
OK or NG
OK >> Check g

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INFINITI QX56 2004 Factory Service Manual AUTOMATIC BACK DOOR SYSTEM
BL-121
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4. BACK DOOR CLOSE SWITCH GROUND INSPECTION
Check continuity between back door close switch connector B63 ter

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INFINITI QX56 2004 Factory Service Manual BL-122
AUTOMATIC BACK DOOR SYSTEM
Revision: August 20072004 QX56
4. BACK DOOR CLOSE SWITCH GROUND INSPECTION
Check continuity between back door close switch connector B63 ter-
minal 3 and ground.
OK o

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INFINITI QX56 2004 Factory Service Manual AUTOMATIC BACK DOOR SYSTEM
BL-123
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3. PINCH STRIP GROUND INSPECTION
1. Connect back door control unit.
2. Check continuity between pinch strip c

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