air condition INFINITI QX56 2004 Factory Service Manual
[x] Cancel search | Manufacturer: INFINITI, Model Year: 2004, Model line: QX56, Model: INFINITI QX56 2004Pages: 3371, PDF Size: 78.5 MB
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AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
4. CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL
1. Connect the driver seat control unit and reclining motor LH.
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> Replace reclining motor LH.
NG >> Replace driver seat control unit.
Lifting Motor (Front) Circuit InspectionEIS002YL
1. CHECK FRONT END SEAT LIFTING MECHANISM
Check the following.
Operation malfunction caused by lifter mechanism deformation, pinched harness or other foreign materi-
als
Operation malfunction caused by foreign materials adhered to the lifting motor (front) or lead screws
Operation malfunction and interference with other parts by installation
OK or NG
OK >> GO TO 2.
NG >> Repair the malfunctioning part and check again.
2. CHECK FUNCTION
With CONSULT-II
Check operation with “SEAT LIFTER FR” in ACTIVE TEST.
Without CONSULT-II
GO TO 3.
OK or NG
OK >> Lifting motor (front) circuit is OK.
NG >> GO TO 3.
ConnectorTerminals
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
P336 (Y/G)
GroundReclining switch ON
(FORWARD operation)Battery voltage
Other than above 0
44 (Y/R)Reclining switch ON
(BACKWARD operation)Battery voltage
Other than above 0
PIIA4802E
Test item Description
SEAT
LIFTER FRThe lifting motor (front) is activated by receiving the drive signal.
PIIA0271E
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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
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4. CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL
1. Connect the driver seat control unit and lifting motor (rear).
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> Replace lifting motor (rear).
NG >> Replace driver seat control unit.
Pedal Adjusting Motor Circuit InspectionEIS002YN
1. CHECK PEDAL ADJUSTING 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.
2. CHECK FUNCTION
With CONSULT-II
Check operation with “PEDAL” in ACTIVE TEST.
Without CONSULT-II
GO TO 3.
OK or NG
OK >> Pedal adjusting motor circuit is OK.
NG >> GO TO 3.
ConnectorTe r m i n a l s
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
P338 (B/W)
GroundLifting switch (rear) ON
(UP operation)Battery voltage
Other than above 0
39 (Y)Lifting switch (rear) ON
(DOWN operation)Battery voltage
Other than above 0
PIIA4804E
Test item Description
ADJ PEDAL MOTORThe pedal adjusting motor is activated by receiving the
drive signal.
PIIA4555E
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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
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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
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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
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AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
2. CHECK SLIDING MOTOR SENSOR CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit connector and sliding motor LH connector.
2. Check continuity between driver seat control unit connector P2
terminals 16, 24, 31 and sliding motor P4 terminals 1, 2, 3.
3. Check continuity between driver seat control unit P2 terminals
16, 24, 31 and ground.
OK or NG
OK >> Replace sliding motor.
NG >> Repair or replace harness.
Reclining Sensor Circuit InspectionEIS002YR
1. CHECK FUNCTION
With CONSULT-II
Check operation with “RECLN 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 >> Reclining sensor circuit is OK.
NG >> GO TO 2.16 (W) - 3 (W) : Continuity should exist.
24 (Y/G) - 2 (Y/G) : Continuity should exist.
31 (L/Y) - 1 (L/Y) : Continuity should exist.
16 (W) - Ground : Continuity should not exist.
24 (Y/G) - Ground : Continuity should not exist.
31 (L/Y) - Ground : Continuity should not exist.
LIIA0706E
Monitor item [POERATION or UNIT] Contents
RECLN PULSE —The seat reclining position (pulse) judged
from the reclining sensor is displayed
PIIA4558E
ConnectorTe r m i n a l s
(Wire color)
Condition Signal
(+) (–)
P2 9 (L/R) GroundReclining
motor
operation
PIIA4559E
PIIA3278E
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2. CHECK RECLINING MOTOR SENSOR CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit and reclining motor LH.
2. Check continuity between driver seat control unit connector P2
terminals 9, 31 and reclining motor LH connector P5 terminals 1,
2.
3. Check continuity between driver seat control unit connector P2
terminals 9, 31 and ground.
OK or NG
OK >> Replace reclining motor.
NG >> Repair or replace harness.
Lifting Sensor (Front) Circuit InspectionEIS002YS
1. CHECK FUNCTION
With CONSULT-II
Check operation with “LIFT FR 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 >> Front lifting sensor is OK.
NG >> GO TO 2.9 (L/R) - 1 (L/R) : Continuity should exist.
31 (L/Y) - 2 (L/Y) : Continuity should exist.
9 (L/R) - Ground : Continuity should not exist.
31 (L/Y) - Ground : Continuity should not exist.
LIIA0707E
Monitor item [OPERATION or UNIT] Contents
LIFT FR PULSE —The front lifting position (pulse) judged
from the lifting sensor (front) is dis-
played
PIIA4558E
ConnectorTe r m i n a l s
(Wire color)
Condition Signal
(+) (–)
P2 25 (LG) GroundLifting
motor
(front)
operation
PIIA4561E
PIIA3278E
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Revision: August 20072004 QX56
2. CHECK FRONT LIFTING MOTOR SENSOR CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit and lifting motor (front).
2. Check continuity between driver seat control unit connector P2 terminals 16, 25, 31 and lifting motor
(front) connector P6 terminals 1, 2, 3.
3. Check continuity between driver seat control unit connector P2
terminals 16, 25, 31 and ground.
OK or NG
OK >> Replace lifting motor (front).
NG >> Repair or replace harness.
Lifting Sensor (Rear) Circuit InspectionEIS002YT
1. CHECK FUNCTION
With CONSULT-II
Check operation with “LIFT RR PULSE” on the DATA MONITOR to make sure 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 >> Rear lifting sensor circuit is OK.
NG >> GO TO 2.16 (W) - 3 (W) : Continuity should exist.
25 (LG) - 2 (LG) : Continuity should exist.
31 (L/Y) - 1 (L/Y) : Continuity should exist.
16 (W) - Ground : Continuity should not exist.
25 (LG) - Ground : Continuity should not exist.
31 (L/Y) - Ground : Continuity should not exist.
LIIA0708E
Monitor item [OPERATION or UNIT]
LIFT RR PULSE —The rear lifting position (pulse) judged from
the lifting sensor (rear) is displayed.
PIIA4558E
ConnectorTe r m i n a l s
(Wire color)
Condition Signal
(+) (–)
P2 10 (W) GroundLifting
motor
(rear)
operation
PIIA4563E
PIIA3278E
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2. CHECK REAR LIFTING MOTOR SENSOR CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit and lifting motor (rear).
2. Check continuity between driver seat control unit connector P2 terminals 10, 16, 31 and lifting motor (rear)
connector P7 terminals 1, 2, 3.
3. Check continuity between driver seat control unit connector P2
terminals 10, 16, 31 and ground.
OK or NG
OK >> Replace lifting motor (rear).
NG >> Repair or replace harness.
Pedal Adjusting Sensor Circuit InspectionEIS002YU
1. CHECK FUNCTION
With CONSULT-II
Operate the pedal adjusting switch with “PEDAL SEN” on the DATA
MONITOR to make sure the voltage changes.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check voltage between automatic drive positioner control unit
connector and ground.
OK or NG
OK >> Pedal adjusting sensor circuit is OK.
NG >> GO TO 2.10 (W) - 2 (W) : Continuity should exist.
16 (W) - 3 (W) : Continuity should exist.
31 (L/Y) - 1 (L/Y) : Continuity should exist.
10 (W) - Ground : Continuity should not exist.
16 (W) - Ground : Continuity should not exist.
31 (L/Y) - Ground : Continuity should not exist.
LIIA0709E
Monitor item [OPERA-
TION or UNIT]Contents
PEDAL
SEN“V”The pedal adjusting position (voltage) judged from the
pedal adjust sensor signal is displayed.
PIIA4568E
ConnectorTe r m i n a l s
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
M33 8 (BR/Y) GroundPedal
front end position0.5
Pedal
back end position4.5
PIIA4569E