2008 INFINITI QX56 turn signal

DLK-86
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR LOCK ACTUATOR
REAR RH : Component Function Check
INFOID:0000000001538991
1.CHECK FUNCTION
1. Use CONSULT-III to perform Active Test "DOOR LOCK".
2. Touch “ALL LOCK” or “ALL UNLOCK” to check that it works normally.
Is the inspection result normal?
YES >> Door lock actuator is OK.
NO >> Refer to DLK-86, "
REAR RH : Diagnosis Procedure".
REAR RH : Diagnosis ProcedureINFOID:0000000001538992
1.CHECK DOOR LOCK ACTUATOR SIGNAL
1. Turn ignition switch OFF.
2. Check voltage between BCM connector M20 terminals 65, 66 and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> GO TO 3
2.CHECK DOOR LOCK ACTUATOR HARNESS
1. Disconnect BCM and rear door lock actuator RH.
2. Check continuity between BCM connector (A) M20 terminals 65, 66 and rear door lock actuator RH connector (B) D305 terminals
2, 3.
Is the inspection result normal?
YES >> Replace rear door lock actuator RH.
NO >> Repair or replace harness or passenger select unlock relay.
3.CHECK DOOR LOCK ACTUATOR HARNESS
1. Disconnect BCM and rear door lock actuator RH.
Connector Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M20 65
Ground Door lock/unlock switch
is turned to LOCK
0
→ Battery voltage
for 300 ms
66 Door lock/unlock switch
is turned to UNLOCK 0
→ Battery voltage
for 300 ms
LIIA1048E
Terminals Continuity
65 3 Yes
66 2 Yes
ALKIA0630ZZ
Revision: March 2010 2008 QX56

DLK-88
< COMPONENT DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
GLASS HATCH LOCK ACTUATOR
GLASS HATCH LOCK ACTUATOR
Diagnosis ProcedureINFOID:0000000004333520
1.CHECK GLASS HATCH LOCK ACTUATOR SIGNAL
1. Turn ignition switch OFF.
2. Check voltage between BCM connector M19 terminal 53 and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace BCM. Refer to BCS-55, "
Removal and Installa-
tion".
2.CHECK GLASS HATCH LOCK ACTUATOR HARNESS
1. Disconnect BCM and glass hatch lock actuator.
2. Check continuity between BCM connector (A) M19 terminal 53 and glass hatch lock actuator connector (B) D711 terminal 3.
3. Check continuity between BCM connector M19 terminals 53 and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK GLASS HATCH LOCK ACTUATOR GROUND CIRCUIT
Check continuity between glass hat ch lock actuator connector D711
terminal 1 and ground.
Is the inspection result normal?
YES >> Replace glass hatch lock actuator. Refer to DLK-237,
"Door Lock Assembly".
NO >> Repair or replace harness.
Connector Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M19 53 Ground Glass hatch switch is
turned to depressed0
→ Battery voltage
for 300 ms
LIIA1938E
Terminals Continuity
53 3 Yes
Terminals Continuity
53 Ground No
ALKIA1789ZZ
Terminals Continuity
1 Ground Yes
ALKIA1790ZZ
Revision: March 2010 2008 QX56

OUTSIDE KEY ANTENNADLK-93
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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OUTSIDE KEY ANTENNA
DescriptionINFOID:0000000001539001
Detects whether the Intelligent Key is in the operating range of the outside antennas.
Front outside antennas are integrated in front outside door handles (driver side, passenger side) to allow lock-
ing and unlocking of door locks when the Intelligent Key is present.
Rear bumper antenna is mounted on the rear bumper and is used to allow the back door and glass hatch
switch assembly opening of the back door when the Intelligent Key is present.
Component Function CheckINFOID:0000000001539002
1.CHECK DOOR REQUEST SWITCHES
Check that door request switches operate normally.
Is the inspection result normal?
YES >> GO TO 2
NO >> Inspect door request switches. Refer to DLK-79, "
ComponentFunctionCheck".
2.CHECK OUTSIDE KEY ANTENNAS FUNCTION
Be sure that Intelligent Key is in each outside key antenna detection range.
Does door lock/unlock when each request switch is pressed?
YES >> GO TO 3
NO >> Refer to DLK-93, "
Diagnosis Procedure".
3.CHECK REAR ANTENNA FUNCTION
Be sure that Intelligent Key is in rear bumper antenna detection range.
Be sure that back door close switch is not in the "CANCEL" position.
Does power back door open when back door switch is operated?
YES >> Outside key antennas are OK.
NO >> Refer to DLK-93, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001539003
1.CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL
1. Turn ignition switch OFF.
2. Check signal between Intelligent Key unit connector M70 terminals 17, 19, 37 and ground with an oscillo- scope.
Is the inspection result normal?
YES >> Outside key antenna is OK.
NO >> GO TO 2
2.CHECK OUTSIDE KEY ANTENNA CIRCUIT
1. Disconnect Intelligent Key unit connector and outside key antenna connector.
Connector Item Te r m i n a l s
Condition Signal
(Reference value)
(+) (-)
M70 Rear
bumper
antenna
17
Ground Request
switch is
pushed
Front out-
side an-
tenna LH
19
Front out-
side an-
tenna RH 37
WIIA1198E
SIIA1910J
Revision: March 2010
2008 QX56

STEERING LOCK UNITDLK-95
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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STEERING LOCK UNIT
Diagnosis ProcedureINFOID:0000000001539004
1.CHECK STEERING LOCK SOLENOID POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect steering lock solenoid connector.
3. Check voltage between steering lock solenoid harness connector M15 terminal 1 and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace steering lock solenoid power supply circuit.
2.CHECK STEERING LOCK SOLENOID GROUND CIRCUIT
Check continuity between steering lock sol enoid harness connector M15 terminal 4 and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace the steering lock solenoid ground cir- cuit.
3.CHECK INTELLIGENT KEY UNIT OUTPUT SIGNAL
1. Connect steering lock solenoid connector.
2. Check voltage between Intelligent Key unit harness connector M70 terminal 1 and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> GO TO 6
4.CHECK STEERING LOCK COMMUNICATION SIGNAL
Check signal between Intelligent Key unit connector M70 terminal 32 and ground with oscilloscope. 1 - Ground : Battery voltage
WIIA1202E
4 - Ground
: Continuity should exist.
WIIA1203E
1 - Ground : Approx. 5V
WIIA1204E
Revision: March 2010 2008 QX56

A/T SHIFT SELECTOR (PARK POSITION SWITCH)DLK-97
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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A/T SHIFT SELECTOR (PARK POSITION SWITCH)
Diagnosis ProcedureINFOID:0000000001539005
1.CHECK A/T SHIFT SELECTOR (PARK POSITION SWITCH) INPUT SIGNAL
1. Turn ignition switch OFF.
2. While pressing the ignition knob switch, check voltage between Intelligent Key unit harness connector M70 terminal 39 and ground.
Is the inspection result normal?
YES >> Replace Intelligent Key unit. Refer to SEC-116,
"Removal and Installation".
NO >> GO TO 2
2.CHECK A/T SHIFT SELECTOR (PARK POSI TION SWITCH) POWER SUPPLY CIRCUIT
1. Disconnect A/T shift selector (park position switch) connector.
2. While pressing the ignition knob switch, check voltage between A/T shift selector (park position switch) harness connector M203
terminal 5 and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness or ignition knob switch.
3.CHECK A/T SHIFT SELECTOR (PARK POSITION SWITCH)
Check continuity between A/T shift selector (park position switch) terminals 5 and 6.
Is the inspection result normal?
YES >> GO TO 4
NO >> Replace A/T shift selector (park position switch).
4.CHECK A/T SHIFT SELECTOR (PARK POSITION SWITCH) CIRCUIT
1. Disconnect Intelligent Key unit connector.
Connector Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M70 39 Ground A/T shift selector lever is in "P"
position
Battery voltage
Other than above 0
WIIA1211E
5 – Ground : Battery voltage.
ALKIA0663ZZ
Component Terminals ConditionContinuity
A/T shift se- lector (park position
switch) 56A/T shift selector lever is in "P"
position
Ye s
Other than above No
ALKIA0664ZZ
Revision: March 2010 2008 QX56

REMOTE KEYLESS ENTRY RECEIVERDLK-99
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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REMOTE KEYLESS ENTRY RECEIVER
DescriptionINFOID:0000000001539006
Receives Intelligent Key operation and transmits to Intelligent Key unit.
Component Function CheckINFOID:0000000001539007
1.CHECK FUNCTION
With CONSULT-III
Check remote keyless entry receiver "RKE OPE COUN1" in Data Monitor mode with CONSULT-III.
Is the inspection result normal?
YES >> Remote keyless entry receiver is OK.
NO >> Refer to DLK-99, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001539008
1.CHECK REMOTE KEYLESS ENTRY RECEIVER OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Check remote keyless entry receiver signal with an oscilloscope.
Is the inspection result normal?
YES >> GO TO 2
NO >> GO TO 5
2.REMOTE KEYLESS ENTRY RECEIV ER VOLTAGE CIRCUIT INSPECTION
Check voltage between remote keyless entry receiver connector M25 terminal 3 and ground using an oscillo-
scope.
Monitor item Condition
RKE OPE COUN1 Checks whether value changes when operating Intelligent Key.
Te r m i n a l s
Keyfob
condition Signal
(Reference value)
(+)
(–)
Remote
keyless
entry re- ceiver
connector Te r m i n a l
M25 2 Ground No function
Any button
is pressed
ALKIA0653ZZ
OCC3879D
OCC3880D
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