INFINITI QX56 2009 Factory Service Manual

LIFTING MOTOR (REAR)ADP-97
< COMPONENT DIAGNOSIS >
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1. Disconnect driver seat control unit and lifting motor (rear).
2. Check continuity between driver seat control unit harness con-
nector and lifting motor (rear) harness connector.
3. Check continuity between driver seat control unit harness con-
nector and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK INTERMITTENT INCIDENT
Refer to GI-38, "Intermittent Incident"
.
Is the inspection result normal?
YES >> Replace driver seat control unit. Refer to ADP-165, "Removal and Installation".
NO >> Repair or replace the malfunctioning part.
Driver seat control
unit connector Te r m i n a l
Lifting motor (rear)
connector Terminal Continuity
B203 (A) 38
B207 (B) 5
Ye s
39 1
Driver seat control unit connector Te r m i n a l
GroundContinuity
B203 (A) 38
No
39
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Revision: December 20092009 QX56

ADP-98
< COMPONENT DIAGNOSIS >
TILT MOTOR
TILT MOTOR
DescriptionINFOID:0000000003775633
 The tilt motor is installed to the steering column assembly.
 The tilt motor is activated with the automatic drive positioner control unit.
 The steering column is tilted upward/downward by changing the rotation direction of tilt motor.
Component Function CheckINFOID:0000000003775634
1. CHECK FUNCTION
1. Select “TILT MOTOR” in “Act ive test” mode with CONSULT-III.
2. Check the tilt motor operation.
Is the operation of relevant parts normal?
YES >> Inspection End.
NO >> Perform diagnosis procedure. Refer to ADP-98, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000003775635
1. CHECK TILT MOTOR HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and tilt motor assembly.
3. Check continuity between automat ic drive positioner control unit
connector M34 (A) terminals 35, 42 and tilt motor assembly con-
nector M86 (B) terminals 1, 5.
4. Check continuity between automat ic drive positioner control unit
connector M34 (A) terminals 35, 42 and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace harness.
2. CHECK AUTOMATIC DRIVE POSITIONER CONTROL UNIT OUTPUT SIGNAL
1. Connect the automatic drive posit ioner control unit and tilt motor
assembly.
2. Check voltage between automatic drive positioner control unit connector and ground.
Test item Description
TILT MOTOR OFF
Steering tilt Sto p
UP Upward
DWN Downward
35 - 1 : Continuity should exist.
42 - 5 : Continuity should exist.
35 - Ground : Continuity should not exist.
42 - Ground : Continuity should not exist.
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LIIA0482E
Revision: December 20092009 QX56

TILT MOTORADP-99
< COMPONENT DIAGNOSIS >
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Is the inspection result normal?
YES >> Replace tilt motor assembly. Refer to ST-19, "Removal and Installation".
NO >> GO TO 3
3. CHECK INTERMITTENT INCIDENT
Refer to GI-38, "Intermittent Incident"
.
Is the inspection result normal?
YES >> Replace automatic drive posit ioner control unit. Refer to ADP-166, "Removal and Installation".
NO >> Repair or replace the malfunctioning part.
Connector Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M34 35
Ground ADP steering switch ON
(UP operation)
Battery voltage
Other than above 0
42 ADP steering switch ON
(DOWN operation)
Battery voltage
Other than above 0
Revision: December 20092009 QX56

ADP-100
< COMPONENT DIAGNOSIS >
PEDAL ADJUSTING MOTOR
PEDAL ADJUSTING MOTOR
DescriptionINFOID:0000000003775636
 The pedal adjusting motor is installed to the pedal assembly.
 The pedal adjusting motor is activated with the automatic drive positioner control unit.
 The pedal assembly is adjusted forward/backward by changing the rotation direction of pedal adjustingmotor.
Component Function CheckINFOID:0000000003775637
1. CHECK FUNCTION
1. Select “ADJ PEDAL MOTOR” in “Active test” mode with CONSULT-III.
2. Check the pedal adjusting motor operation.
Is the operation of relevant parts normal?
YES >> Inspection End.
NO >> Perform diagnosis procedure. Refer to ADP-100, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000003775638
1. CHECK PEDAL ADJUSTING MOTOR POWER SUPPLY
1. Turn the ignition switch OFF.
2. Perform “Active test” (“ADJ PEDAL MOTOR”) with CONSULT-lll.
3. Check voltage between automatic drive positioner control unit harness connector and ground.
Is the inspection result normal?
YES >> Replace pedal adjusting motor assembly. Refer to ADP-169, "Removal and Installation".
NO >> GO TO 2
2. CHECK PEDAL ADJUSTING MOTOR CIRCUIT
Test item Description
ADJ PEDAL MOTOR OFF
Pedal adjusting motor Sto p
FR Forward
RR Backward
Te r m i n a l
Test ItemVoltage
(V)
(Approx.)
(+)
(-)
Automatic
drive posi-
tioner con- trol unit
connector Te r m i n a l
M34 37
Ground ADJ PED-
AL MOTOR OFF 0
RR (backward) 0
FR (forward)
Battery
voltage
45 OFF 0
RR (backward)
Battery
voltage
FR (forward) 0
PIIA4806E
Revision: December 20092009 QX56

PEDAL ADJUSTING MOTORADP-101
< COMPONENT DIAGNOSIS >
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1. Disconnect automatic drive positioner control unit and pedal adjusting motor assembly.
2. Check continuity between automat ic drive positioner control unit
harness connector and pedal adjusting motor assembly harness
connector.
3. Check continuity between automatic drive positioner control unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK INTERMITTENT INCIDENT
Refer to GI-38, "Intermittent Incident"
.
Is the inspection result normal?
YES >> Replace automatic drive posit ioner control unit. Refer to ADP-166, "Removal and Installation".
NO >> Repair or replace the malfunctioning part.
Automatic drive
positioner control unit connector Te r m i n a lPedal adjusting
motor assembly connector Terminal Continuity
M34 (A) 37
E109 (B) 1
Ye s
45 2
Automatic drive positioner control unit connector Te r m i n a l
GroundContinuity
M34 (A) 37
No
45
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Revision: December 20092009 QX56

ADP-102
< COMPONENT DIAGNOSIS >
DOOR MIRROR MOTOR
DOOR MIRROR MOTOR
DescriptionINFOID:0000000003775639
It makes mirror face operate from side to side and up and down with the electric power that automatic drive
positioner control unit supplies.
Component Function CheckINFOID:0000000003775640
1. CHECK DOOR MIRROR MOTOR FUNCTION
Check the operation with “MIRROR MOTOR RH” and “MI RROR MOTOR LH” in “ACTIVE TEST” mode with
CONSULT-III
Refer to ADP-28, "CONSULT-III Function"
.
Is the inspection result normal?
YES >> Door mirror motor function is OK.
NO >> Refer to ADP-102, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000003775641
1. CHECK DOOR MIRROR MOTOR INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between door mirror connector and ground.
Is the inspection result normal?
YES >> Refer to ADP-104, "Component Inspection".
NO >> GO TO 2
2. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect automatic drive posit ioner control unit and door mir-
ror.
3. Check continuity between automat ic drive positioner control unit
connector and door mirror connector.
Door mirror LH
Te r m i n a l s
Door mirror re-
mote control
switch condition Voltage (V)
(Approx.)
(+)
(–)
Door mirror
connector Te r m i n a l
D4 (LH)
D107 (RH) 1
Ground UP Battery voltage
Other than above 0
2 LEFT Battery voltage
Other than above 0
3 DOWN / RIGHT Battery voltage
Other than above 0
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Automatic drive
positioner control unit connector Te r m i n a l
Door mirror LH
connector Terminal Continuity
M33 16
D4 3
Ye s
31 1
32 2
LIIA1880E
Revision: December 20092009 QX56

DOOR MIRROR MOTORADP-103
< COMPONENT DIAGNOSIS >
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Door mirror RH
4. Check continuity between automat ic drive positioner control unit
connector and ground.
Door mirror LH
Door mirror RH
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK AUTOMATIC DRIVE POSITION ER CONTROL UNIT OUTPUT SIGNAL
1. Connect automatic drive positioner control unit.
2. Turn ignition switch ON.
3. Check voltage between automatic drive positioner control unit
connector and ground.
Door mirror LH
Automatic drive posi-
tioner control unit con- nector Te r m i n a l
Door mirror
RH connector Terminal Continuity
M33 14
D107 1
Ye s
15 2
30 3
Automatic drive position- er control unit connector Te r m i n a l
GroundContinuity
M33 16
No
31
32
Automatic drive position- er control unit connector Te r m i n a l
GroundContinuity
M33 14
No
15
30
LIIA1888E
Te r m i n a l s
Mirror switch condition Voltage (V)
(Approx.)
(+)
(-)
Automatic drive
positioner control unit connector Te r m i n a l
M33 16
Ground DOWN / RIGHT Battery voltage
Other than above 0
31 UP Battery voltage
Other than above 0
32 LEFT Battery voltage
Other than above 0
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Revision: December 20092009 QX56

ADP-104
< COMPONENT DIAGNOSIS >
DOOR MIRROR MOTOR
Door mirror RH
Is the inspection result normal?
YES >> GO TO 4
NO >> Replace automatic drive positioner control unit. Refer to ADP-166, "Removal and Installation"
.
4. CHECK DOOR MIRROR MOTOR
Check door mirror motor.
Refer to ADP-104, "Component Inspection"
.
Is the inspection result normal?
YES >> Refer to GI-38, "Intermittent Incident".
NO >> Replace door mirror actuator. Refer to MIR-14, "Mirror Actuator"
.
Component InspectionINFOID:0000000003775642
1. CHECK DOOR MIRROR MOTOR-I
Check that door mirror motor does not trap foreign objects and does not have any damage.
Refer to MIR-14, "Exploded View"
.
Is the inspection result normal?
YES >> GO TO 2
NO >> Replace door mirror actuator. Refer to MIR-14, "Mirror Actuator"
.
2. CHECK DOOR MIRROR MOTOR-II
1. Turn ignition switch OFF.
2. Disconnect door mirror.
3. Apply 12V to each power supply terminal of door mirror motor.
Is the inspection result normal?
YES >> Inspection End.
NO >> Replace door mirror actuator. Refer to MIR-14, "Mirror Actuator"
.
Te r m i n a l s
Mirror switch con-dition Voltage (V)
(Approx.)
(+)
(-)
Automatic drive
positioner con-
trol unit connec-
tor Te r m i n a l
M33 14
GroundUP Battery voltage
Other than above 0
15 LEFT Battery voltage
Other than above 0
30 DOWN / RIGHT Battery voltage
Other than above 0
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Door mirror connector Te r m i n a l
Operational direction
(+) (–)
D4 (LH)
D107 (RH) 32 RIGHT
23 LEFT
13 UP
31 DOWN
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Revision: December 20092009 QX56

SEAT MEMORY INDICATOR LAMPADP-105
< COMPONENT DIAGNOSIS >
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SEAT MEMORY INDICATOR LAMP
DescriptionINFOID:0000000003775643
 The seat memory switch is installed on the driver si de door trim. The operation signal is inputted to the auto-
matic drive positioner control unit when the memory switch is operated.
 The status of automatic drive positioner system can be checked according to the illuminating/flashing status.
Component Function CheckINFOID:0000000003775644
1. CHECK FUNCTION
1. Select “MEMORY SW INDCTR” in “Active test” mode with CONSULT-III.
2. Check the memory indicator operation.
Is the operation of relevant parts normal?
YES >> Inspection End.
NO >> Perform diagnosis procedure. Refer to ADP-105, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000003775645
1. CHECK SEAT MEMORY INDICATOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and seat memory switch.
3. Check continuity between automat ic drive positioner control unit
harness connector and seat memo ry switch harness connector.
4. Check continuity between automatic drive positioner control unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace harness.
2. CHECK MEMORY INDICATOR POWER SUPPLY
Test item Description
MEMORY SW INDCTR OFF
Memory switch indicator OFF
ON-1 Indicator 1: ON
ON-2 Indicator 2: ON
Automatic drive
positioner control
unit connector Te r m i n a l
Seat memory switch
connector Terminal Continuity
M33 12
D5 6
Ye s
13 7
Automatic drive position- er connector Te r m i n a l
GroundContinuity
M33 12
No
13
LIIA1022E
Revision: December 20092009 QX56

ADP-106
< COMPONENT DIAGNOSIS >
SEAT MEMORY INDICATOR LAMP
Check voltage between seat memory switch harness connector and
ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Check the following.Fuse
 Harness for open or short between memory indicator and fuse.
3. CHECK MEMORY INDICATOR
Refer to ADP-106, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 4
NO >> Replace seat memory switch. Refer to ADP-167, "Removal and Installation"
.
4. CHECK INTERMITTENT INCIDENT
Refer to GI-38, "Intermittent Incident"
.
Is the inspection result normal?
YES >> Replace automatic drive posit ioner control unit. Refer to ADP-166, "Removal and Installation".
NO >> Repair or replace the malfunctioning part.
Component InspectionINFOID:0000000003775646
1. CHECK SEAT MEMORY INDICATOR
1. Disconnect seat memory switch.
2. Check continuity between seat memory switch terminals.
Is the inspection result normal?
YES >> Inspection End.
NO >> Replace seat memory switch. Refer to ADP-167, "Removal and Installation"
.
Seat memory switch
connector Te r m i n a l s
Voltage (V)
(Approx.)
(+) (–)
D5 5 Ground Battery voltage
PIIA4595E
Te r m i n a l Continuity
Seat memory switch
(+) (-) 6 5Yes
7
ALJIA0200ZZ
Revision: December 20092009 QX56