ignition INFINITI QX56 2004 Factory Service Manual

SE-44
AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
3. CHECK SLIDING MOTOR CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and sliding motor LH.
3. Check continuity between driver seat control unit connector P3
terminals 35, 42 and sliding motor connector P4 terminals 4, 6.
4. Check continuity between driver seat control unit connector P3
terminals 35, 42 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL
1. Connect the driver seat control unit and sliding motor LH.
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> Replace sliding motor.
NG >> Replace driver seat control unit.
Reclining Motor LH Circuit InspectionEIS002YK
1. CHECK SEAT RECLINING MECHANISM
Check the following.

Operation malfunction caused by an interference with the center pillar or center console

Operation malfunction and interference with other parts by poor installation
OK or NG
OK >> GO TO 2.
NG >> Repair the malfunctioning part and check again.35 (V/W) - 6 (V/W) : Continuity should exist.
42 (O/B) - 4 (O/B) : Continuity should exist.
35 (V/W) - Ground : Continuity should not exist.
42 (O/B) - Ground : Continuity should not exist.
LIIA0696E
ConnectorTe r m i n a l s
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
P335 (V/W)
GroundSliding switch ON
(FORWARD operation)Battery voltage
Other than above 0
42 (O/B)Sliding switch ON
(BACKWARD operation)Battery voltage
Other than above 0
PIIA4801E

AUTOMATIC DRIVE POSITIONER
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Revision: August 20072004 QX56
2. CHECK FUNCTION
With CONSULT-II
Check operation with “SEAT RECLINING” in ACTIVE TEST.
Without CONSULT-II
GO TO 3.
OK or NG
OK >> Reclining motor LH circuit is OK.
NG >> GO TO 3.
3. CHECK RECLINING MOTOR CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and reclining motor LH.
3. Check continuity between driver seat control unit connector P3 terminals 36, 44 and reclining motor LH
connector P5 terminals 3, 4.
4. Check continuity between driver seat control unit connector P3
terminals 36, 44 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
Test item Description
SEAT
RECLININGThe reclining motor LH is activated by receiving the drive signal.
PIIA0268E
36 (Y/G) - 4 (Y/G) : Continuity should exist.
44 (Y/R) - 3 (Y/R) : Continuity should exist.
36 (Y/G) - Ground : Continuity should not exist.
44 (Y/R) - Ground : Continuity should not exist.
LIIA0697E

AUTOMATIC DRIVE POSITIONER
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Revision: August 20072004 QX56
3. CHECK LIFTING MOTOR (FRONT) CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and lifting motor (front).
3. Check continuity between driver seat control unit connector P3 terminals 37, 45 and lifting motor (front)
connector P6 terminals 4, 6.
4. Check continuity between driver seat control unit connector P3
terminals 37, 45 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL
1. Connect the driver seat control unit and lifting motor (front).
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> Replace lifting motor (front).
NG >> Replace driver seat control unit.
Lifting Motor (Rear) Circuit InspectionEIS002YM
1. CHECK REAR SEAT LIFTING MECHANISM
Check the following.

Operation malfunction caused by lifter mechanism deformation or pinched harness or other foreign mate-
rials

Operation malfunction caused by foreign materials adhered to the lifting motor (rear) or lead screws

Operation malfunction and interference with other parts by poor installation
OK or NG
OK >> GO TO 2.
NG >> Repair the malfunctioning part and check again.37 (BR) - 6 (BR) : Continuity should exist.
45 (GR) - 4 (GR) : Continuity should exist.
37 (BR) - Ground : Continuity should not exist.
45 (GR) - Ground : Continuity should not exist.
LIIA0698E
ConnectorTe r m i n a l s
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
P337 (BR)
GroundLifting switch (front) ON
(DOWN operation)Battery voltage
Other than above 0
45 (GR)Llifting switch (front) ON
(UP operation)Battery voltage
Other than above 0
PIIA4805E

SE-48
AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
2. CHECK FUNCTION
With CONSULT-II
Check operation with “SEAT LIFTER RR” in ACTIVE TEST.
Without CONSULT-II
GO TO 3.
OK or NG
OK >> Lifting motor (rear) circuit is OK.
NG >> GO TO 3.
3. CHECK LIFTING MOTOR (REAR) CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and lifting motor (rear).
3. Check continuity between driver seat control unit connector P3 terminals 38, 39 and lifting motor (rear)
connector P7 terminals 4, 6.
4. Check continuity between driver seat control unit P3 terminals
38, 39 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
Test item Description
SEAT LIFTER
RRThe lifting motor (rear) is activated by receiving the drive signal.
PIIA0274E
38 (B/W) - 6 (B/W) : Continuity should exist.
39 (Y) - 4 (Y) : Continuity should exist.
38 (B/W) - Ground : Continuity should not exist.
39 (Y) - Ground : Continuity should not exist.
LIIA0699E

SE-50
AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
3. CHECK PEDAL ADJUSTING MOTOR CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and pedal adjusting motor.
3. Check continuity between automatic drive positioner control unit connector M34 terminals 37, 45 and
pedal adjusting motor connector E109 terminals 1, 2.
4. Check continuity between automatic drive positioner control unit
connector M34 terminals 37, 45 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK AUTOMATIC DRIVE POSITIONER CONTROL UNIT OUTPUT SIGNAL
1. Connect the automatic drive positioner control unit and pedal adjusting motor.
2. Check voltage between automatic drive positioner control unit
connector and ground.
OK or NG
OK >> Replace pedal adjusting motor.
NG >> Replace automatic drive positioner control unit.
Mirror Motor LH Circuit CheckEIS002YO
1. CHECK DOOR MIRROR LH MECHANISM
Check the following items.
Operation malfunction caused by a foreign object caught in door mirror face edge.
OK or NG
OK >> GO TO 2.
NG >> Repair the malfunctioning parts, and check the symptom again.37 (G) - 1 (G) : Continuity should exist.
45 (R) - 2 (R) : Continuity should exist.
37 (G) - Ground : Continuity should not exist.
45 (R) - Ground : Continuity should not exist.
LIIA1481E
ConnectorTerminals
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
M3437 (G)
GroundPedal adjusting switch
ON
(FORWARD operation)Battery voltage
Other than above 0
45 (R)Pedal adjusting switch
ON
(BACKWARD opera-
tion)Battery voltage
Other than above 0
PIIA4806E

AUTOMATIC DRIVE POSITIONER
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Revision: August 20072004 QX56
2. CHECK FUNCTION
With CONSULT–II
Check the operation with “MIRROR MOTOR LH” in the ACTIVE
TEST.
Without CONSULT–II
GO TO 3.
OK or NG
OK >> Mirror motor LH circuit is OK.
NG >> GO TO 3.
3. CHECK DOOR MIRROR MOTOR LH CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and door mirror LH.
3. Check continuity between automatic drive positioner control unit connector M33 terminals 16, 31, 32 and
door mirror LH connector D4 terminals 1, 2, 3.
4. Check continuity between automatic drive positioner control unit
connector M41 terminal 16, 31, 32 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
Test item Description
MIRROR MOTOR
LHThe mirror motor LH moves the mirror UP/DOWN and LEFT/
RIGHT by receiving the drive signal.
PIIA4784E
16 (O) - 3 (O) : Continuity should exist.
31 (R) - 1 (R) : Continuity should exist.
32 (BR) - 2 (BR) : Continuity should exist.
16 (O) - Ground : Continuity should not exist.
31 (R) - Ground : Continuity should not exist.
32 (BR) - Ground : Continuity should not exist.
LIIA1880E

SE-52
AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
4. CHECK MIRROR MOTOR SIGNAL
1. Connect door mirror LH.
2. Turn ignition switch to ACC.
3. Check voltage between door mirror LH connector and ground.
OK or NG
OK >> Replace door mirror LH.
NG >> Repair or replace harness.
Mirror Motor RH Circuit CheckEIS002YP
1. CHECK DOOR MIRROR RH MECHANISM
Check the following items.
Operation malfunction caused by a foreign object caught in door mirror face edge.
OK or NG
OK >> GO TO 2.
NG >> Repair the malfunctioning parts, and check the symptom again.
2. CHECK FUNCTION
With CONSULT–II
Check the operation with “MIRROR MOTOR RH” in the ACTIVE
TEST.
Without CONSULT–II
GO TO 3.
OK or NG
OK >> Mirror motor RH circuit is OK.
NG >> GO TO 3.
ConnectorTe r m i n a l s
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
D41
(R)
GroundWhen motor is
operated UP1.5 - Battery voltage
Other than above 0
2
(BR)When motor is
operated LEFT1.5 - Battery voltage
Other than above 0
3
(O)When motor is
operated DOWN or RIGHT1.5 - Battery voltage
Other than above 0
LIIA1881E
Test item Description
MIRROR MOTOR
RHThe mirror motor RH moves the mirror UP/DOWN and LEFT/
RIGHT by receiving the drive signal.
PIIA0202E

AUTOMATIC DRIVE POSITIONER
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Revision: August 20072004 QX56
3. CHECK DOOR MIRROR RH CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and door mirror RH connector.
3. Check continuity between automatic drive positioner control unit connector M33 terminals 14, 15, 30 and
door mirror RH connector D107 terminals 1, 2, 3.
4. Check continuity between automatic drive positioner control unit
connector M33 terminal 14, 15, 30 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK MIRROR MOTOR SIGNAL
1. Connect door mirror RH.
2. Turn ignition switch to ACC.
3. Check voltage between door mirror RH connector and ground.
OK or NG
OK >> Replace door mirror motor RH.
NG >> Repair or replace harness.
Steering Wheel Tilt Circuit InspectionEIS0038L
1. CHECK STEERING WHEEL TILT MECHANISM
Check the following.

Operation malfunction caused by pedal adjusting mechanism deformation or pinched harness or other
foreign materials

Operation malfunction and interference with other parts by poor installation
OK or NG
OK >> GO TO 2.
NG >> Repair the malfunctioning part and check again.14 (GR/R) - 1 (GR/R) : Continuity should exist.
15 (V/R) - 2 (V/R) : Continuity should exist.
30 (Y) - 3 (Y) : Continuity should exist.
14 (GR/R) - Ground : Continuity should not exist.
15 (V/R) - Ground : Continuity should not exist.
30 (Y) - Ground : Continuity should not exist.
LIIA1888E
ConnectorTerminals
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
D1071 (GR/R)
GroundMirror motor is operated
UP1.5 - Battery
voltage
Other than above 0
2 (V/R)Mirror motor is operated
LEFT1.5 - Battery
voltage
Other than above 0
3 (Y)Mirror motor is operated
DOWN or RIGHT1.5 - Battery
voltage
Other than above 0
LIIA1889E

SE-54
AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
2. CHECK FUNCTION
With CONSULT-II
Check operation with “TILT MOTOR” in ACTIVE TEST.
Without CONSULT-II
GO TO 3.
OK or NG
OK >> Steering wheel tilt motor circuit is OK.
NG >> GO TO 3.
3. CHECK STEERING WHEEL MOTOR HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and steering wheel tilt motor.
3. Check continuity between automatic drive positioner control unit connector M34 terminals 35, 42 and
steering wheel tilt motor connector M68 terminals 1, 5.
4. Check continuity between automatic drive positioner control unit
connector M34 terminals 35, 42 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
Test item Description
TILT MOTOR The pedal adjust motor is activated by receiving the drive signal.
PIIA0280E
35 (R) - 1 (R) : Continuity should exist.
42 (V) - 5 (V) : Continuity should exist.
35 (R) - Ground : Continuity should not exist.
42 (V) - Ground : Continuity should not exist.
LIIA1431E

AUTOMATIC DRIVE POSITIONER
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Revision: August 20072004 QX56
4. CHECK AUTOMATIC DRIVE POSITIONER CONTROL UNIT OUTPUT SIGNAL
1. Connect the automatic drive positioner control unit connector and steering wheel tilt motor.
2. Check voltage between automatic drive positioner control unit
connector and ground.
OK or NG
OK >> Replace steering wheel tilt motor.
NG >> Replace automatic drive positioner control unit.
Sliding Sensor Circuit InspectionEIS002YQ
1. CHECK FUNCTION
With CONSULT-II
Check operation with “SLIDE PULSE” on the DATA MONITOR to make sure the pulse changes.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check signal between driver seat control unit connector and
ground, with oscilloscope.
OK or NG
OK >> Sliding sensor circuit is OK.
NG >> GO TO 2.
ConnectorTe r m i n a l s
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
M3435 (R)
GroundTilt switch ON
(UP operation)Battery voltage
Other than above 0
42 (V)Tilt switch ON
(DOWN operation)Battery voltage
Other than above 0
LIIA0482E
Monitor item [OPERATION or UNIT] Contents
SLIDE PULSE —The seat sliding position (pulse) judged
from the sliding sensor signal is dis-
played
PIIA4558E
ConnectorTe r m i n a l s
(Wire color)
Condition Signal
(+) (–)
P2 24 (Y/G) GroundSliding
motor
operation
PIIA4556E
PIIA3277E