INFINITI QX56 2008 Factory Service Manual

DLK-118
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
KEYFOB ID SET UP WITHOUT CONSULT-III
ler ID codes should be erased. After all ID codes are erased, the ID codes of all remaining and/or new key-
fobs must be re-registered.
To erase all ID codes in memory, register one ID code (keyfob) five times. After all ID codes are erased, the
ID codes of all remaining and/or new keyfobs must be re-registered.
• When registering an additional keyfob, the existing ID codes in memory may or may not be erased. If five ID
codes are stored in memory, when an additional code is registered, only the oldest code is erased. If less
than five ID codes are stored in memory, when an additi onal ID code is registered, the new ID code is added
and no ID codes are erased.
• If you need to activate more than two additional new keyfobs, repeat the procedure “Additional ID code
entry” for each new keyfob.
• Entry of maximum five ID codes is allowed. When mo re than five ID codes are entered, the oldest ID code
will be erased.
• Even if same ID code that is already in the memory is input, the same ID code can be entered. The code is
counted as an additional code.
Revision: March 2010 2008 QX56

AUTOMATIC BACK DOOR SELF-DIAGNOSIS PROCEDUREDLK-119
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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AUTOMATIC BACK DOOR SELF-DIAGNOSIS PROCEDURE
Self-Diagnosis ProcedureINFOID:0000000001539033
INPUT SIGNAL CHECK MODE
Input signal check mode allows testing of swit ch input signal to the back door control unit.
To activate input signal check mode on the automatic sliding door, perform the following steps:
1. Turn ignition switch OFF.
2. Turn back door close switch to CANCEL (system cancelled).
3. Place A/T shift selector lever in P position.
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 and hold the power liftgate switch.
10. After approximately 5 seconds, the back door warning chime will sound for 1 second.
11. Release the power liftgate switch.
12. The input signal check mode is now initialized.
The input signal check mode can test the following inputs. The back door warning chime will sound for approx-
imately 0.5 second each time a switch signal input oc curs. Use this test when one of these inputs is not
responding during normal automatic back door operation.
*Back door warning chime should sound as soon as vehicle moves.
Turn ignition switch OFF to end input signal check mode.
OPERATING CHECK MODE
Operating check mode allows self-diagnos is of the automatic back door system.
To activate operating check mode on the automatic back door, perform the following steps:
1. Turn ignition switch OFF.
2. Turn back door close switch to CANCEL (system cancelled).
3. Place A/T shift selector lever in P position.
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 second.
8. Release the back door handle switch.
Switch signal OperationRefer to
Power liftgate switch OFF → ONDLK-125
Back door close switch (CLOSE) OFF → ON DLK-127
Back door close switch (CANCEL) OFF → ON DLK-128
Back door handle switch OFF → ON DLK-134
A/T shift selector (park position switch) P position → other than P position DLK-97
Vehicle speed* Vehicle speedTM-48
Remote keyless entry signal Keyfob switch OFF → ON DLK-99
Door lock/unlock signal LOCK → UNLOCK DLK-70
Pinch strip LH signal OFF → ON DLK-129
Pinch strip RH signal OFF → ON DLK-129
Revision: March 2010 2008 QX56

DLK-120
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
AUTOMATIC BACK DOOR SELF-DIAGNOSIS PROCEDURE
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 swit ch to activate the operating check mode.
Self-diagnosis results are indicated by the back door warning chime.
Turn ignition switch OFF to end input signal check mode.
Back door warning chime order Back door warning chime length
Start self-diagnosis 1.5 seconds
OK NG
1. Operating conditions diagnosis 0.5 second0.2 second
2. Back door encoder diagnosis 0.5 second0.2 second
3. Back door clutch diagnosis 0.5 second0.2 second
4. Back door motor diagnosis 0.5 second0.2 second
5. Cinch latch motor diagnosis 0.5 second0.2 second
Restart self-diagnosis 1.5 seconds
ItemNG ResultRefer to
1. Operating conditions diagnosis result One of the following operating conditions no
longer met: ignition switch ON, back door close
switch (CANCEL) ON, A/T shift selector lever
in P position—
2. Back door encoder diagnosis result Sensor diagnosis/short, pulse signal, pulse
signal directionDLK-236
3. Back door clutch diagnosis result
Back door clutch does not operateDLK-236
4. Back door motor diagnosis result Back door motor does not operate (no operat-
ing current)
DLK-236
5. Cinch latch motor diagnosis result Cinch latch motor does not operate (no operat-
ing current)DLK-236
Revision: March 2010
2008 QX56

POWER LIFTGATE SWITCH FUNCTIONDLK-121
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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POWER LIFTGATE SWITCH FUNCTION
Diagnosis ProcedureINFOID:0000000001539034
1.POWER LIFTGATE SWITCH FUNCTION INSPECTION
Check power liftgate switch using switch operation.
Did the back door respond correctly?
YES >> Power liftgate switch is OK.
NO >> GO TO 2
2.POWER LIFTGATE SWITCH SIGNAL INSPECTION
1. Turn ignition switch OFF.
2. While operating the power liftgate switch, check voltage between back door control unit connector B55 terminal 23 and
ground.
Is the inspection result normal?
YES >> Switch is OK.
NO >> GO TO 3
3.POWER LIFTGATE SWITCH CIRCUIT INSPECTION
1. Disconnect back door control unit and power liftgate switch connectors.
2. Check continuity between back door control unit connector (A) B55 terminal 23 and power liftgate switch connector (B) M92 ter-
minal 1.
3. Check continuity between back door control unit connector (A) B55 terminal 23 and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair the harness between the power liftgate switch and the back door control unit.
4.POWER LIFTGATE SWITCH GROUND INSPECTION
Check continuity between power liftgate switch connector terminal 2
and ground.
Is the inspection result normal?
YES >> GO TO 5
NO >> Repair the harness between the power liftgate switch and ground.
5.POWER LIFTGATE SWITCH POWER SUPPLY CIRCUIT INSPECTION
1. Reconnect back door control unit.
2. Ensure liftgate is closed.
Te r m i n a l Measuring condition Voltage (V)
(Approx.)
(+) (-)
23 GroundPower liftgate
switch ON
0
OFF Battery voltage
LIIA0802E
23 - 1 : Continuity should exist.
23 - Ground : Continuity should not exist.
ALKIA0670ZZ
2 - Ground : Continuity should exist.
LIIA1065E
Revision: March 2010 2008 QX56

DLK-122
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
POWER LIFTGATE SWITCH FUNCTION
3. Check voltage between power liftgate switch connector M92 ter-
minal 1 and ground.
Is the inspection result normal?
YES >> Replace the power liftgate switch.
NO >> Replace the back door control unit. 1 - Ground
:Approx. battery voltage
LIIA1063E
Revision: March 2010 2008 QX56

GLASS HATCH SWITCHDLK-123
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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GLASS HATCH SWITCH
Diagnosis ProcedureINFOID:0000000004333521
NOTE:
Repair any front door lock actuator RH malf unction before proceeding with this diagnosis.
1.CHECK GLASS HATCH SWITCH
1. Turn ignition switch OFF.
2. Insure front door lock actuator RH is in the unlock position.
3. Check continuity between glass hatch switch terminal 2 and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK HARNESS CONTINUITY
1. Disconnect glass hatch switch.
2. Disconnect BCM.
3. Check continuity between BCM connector M18 (A) terminal 30 and glass hatch switch connector D706 (B) terminal 2.
4. Check continuity between BCM connector M18 (A) terminal 30 and ground.
Is the inspection result normal?
YES >> Glass hatch switch circuit is OK.
NO >> Repair or replace harness.
3.CHECK GLASS HATCH SWITCH
1. Disconnect glass hatch switch.
2. Check continuity between glass hatch switch harness connector D706 terminal 1 and ground.
Is the inspection result normal?
YES >> Replace glass hatch switch.
NO >> GO TO 4.
4.CHECK HARNESS CONTINUITY
1. Disconnect front door lock actuator RH.
Connec- tor Te r m i n a l s
ConditionContinuity
(+) (–)
D706 2 Ground With the glass hatch switch
pressed
Ye s
With the glass hatch switch
released No
LIIA2399E
30 - 2
: Continuity should exist.
30 - Ground : Continuity should not exist.
LIIA2400E
1 - Ground: Continuity should exist.
LIIA2401E
Revision: March 2010 2008 QX56

DLK-124
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
GLASS HATCH SWITCH
2. Check continuity between glass hatch switch connector D706
(A) terminal 1 and front door lock actuator RH connector D114
(B) terminal 4
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace harness.
5.CHECK FRONT DOOR LOCK ACTUATOR RH GROUND CIRCUIT
Check continuity between front door lock actuator RH connector
D114 terminal 5 and ground
Is the inspection result normal?
YES >> Replace front door lock actuator RH. Refer to DLK-232,
"Removal and Installation".
NO >> Repair or replace harness. 1 - 4 : Continuity should exist.
LIIA2402E
5 - Ground
: Continuity should exist.
LIIA2403E
Revision: March 2010 2008 QX56

GLASS HATCH AJAR SWITCHDLK-125
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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GLASS HATCH AJAR SWITCH
Diagnosis ProcedureINFOID:0000000001539035
1.CHECK GLASS HATCH AJAR SWITCH INPUT SIGNALWith CONSULT-III
Check glass hatch ajar switch ("TRNK OPN MNTR") in DATA MONITOR mode with CONSULT–III.
• When glass hatch is open:
• When glass hatch is closed:
Without CONSULT-III
Check voltage between BCM connector M19 terminal 42 and ground.
Is the inspection result normal?
YES >> System is OK.
NO >> GO TO 2
2.CHECK GLASS HATCH AJAR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect glass hatch ajar switch, BCM and back door control unit.
3. Check continuity between BCM connector (A) M19 te rminal 42 and glass hatch ajar switch connector (C)
D707 terminal 1.
4. Check continuity between back door control unit connector B55
(B) terminal 17 and glass hatch ajar switch connector (C) D707
terminal 1.
5. Check continuity between glass hatch ajar switch connector (C) D707 terminal 1 and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3.CHECK GLASS HATCH AJAR SWITCH
1. Disconnect glass hatch ajar switch connector.
2. Check continuity between glass hatch ajar switch connector terminal 1 and ground. TRNK OPN MNTR : ON
TRNK OPN MNTR : OFF
Connector Item
Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (–)
M19 BCM 42 Ground Open
↓
Closed 0
↓
Battery voltage
LIIA1149E
42 - 1 : Continuity should exist.
17 - 1 : Continuity should exist.
1 - Ground : Continuity should not exist.
ALKIA0667ZZ
Revision: March 2010 2008 QX56

DLK-126
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
GLASS HATCH AJAR SWITCH
Is the inspection result normal?
YES >> Check glass hatch ajar switch case ground condition.
NO >> Replace glass hatch ajar s
witch, or repair or replace
harness.
Terminals Condition Continuity
Glass hatch ajar switch 1 – Ground Open
Yes
Closed No
ALKIA0668ZZ
Revision: March 2010 2008 QX56

BACK DOOR CLOSE (CLOSE) SWITCH SYSTEM
DLK-127
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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BACK DOOR CLOSE (C LOSE) SWITCH SYSTEM
Diagnosis ProcedureINFOID:0000000001539036
1.BACK DOOR CLOSE SWITCH FUNCTION INSPECTION
Check back door close (close) s witch using switch operation.
Is the inspection result normal?
YES >> Back door close switch is OK.
NO >> GO TO 2
2.BACK DOOR CLOSE SWITCH SIGNAL INSPECTION
1. Turn ignition switch OFF.
2. While operating the back door close switch, check voltage between back door control unit connector B55 terminal 8 and
ground.
Is the inspection result normal?
YES >> Switch is OK.
NO >> GO TO 3
3.BACK DOOR CLOSE SWITCH CIRCUIT INSPECTION
1. Disconnect back door close switch and back door control unit connector.
2. Check continuity between back door control unit connector (A) B55 terminal 8 and back door close switch connector (B) B63
terminal 1.
3. Check continuity between back door control unit connector (A) B55 terminal 8 and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair the harness between the back door close switch and the back door control unit.
4.BACK DOOR CLOSE SWITCH GROUND INSPECTION
Check continuity between back door close switch connector B63 ter-
minal 3 and ground.
Is the inspection result normal?
YES >> Replace the back door close switch.
NO >> Repair the harness between the back door close switch and ground.
Te r m i n a l s Measuring condition Voltage (V)
(Approx.)
(+) (-)
8G ro u nd Back door
close switch ON
0
OFF Battery voltage
LIIA0805E
8 - 1 : Continuity should exist.
8 - Ground : Continuity should not exist.
ALKIA0669ZZ
3 - Ground : Continuity should exist.
WIIA0602E
Revision: March 2010 2008 QX56