seat INFINITI QX56 2004 Factory Service Manual

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AUTOMATIC DRIVE POSITIONER
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

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AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
Sliding Switch Circuit InspectionEIS002YX
1. CHECK FUNCTION
With CONSULT-II
With “SLIDE SW-FR, SLIDE SW-RR” on the DATA MONITOR, oper-
ate the sliding switch to check ON/OFF operation.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check voltage between driver seat control unit connector and ground.
OK or NG
OK >> Sliding switch circuit is OK.
NG >> GO TO 2.
2. CHECK SLIDING SWITCH CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit connector and power seat switch LH connector.
2. Check continuity between driver seat control unit connector P2
terminals 11, 26 and power seat switch LH connector P8 termi-
nals 1, 7.
3. Check continuity between driver seat control unit connector P2
terminals 11, 26 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
Monitor item [OPER-
ATION or UNIT]Contents
SLIDE SW–
FR"ON/
OFF"ON / OFF status judged from the sliding switch (FR) sig-
nal is displayed.
SLIDE SW–
RR"ON/
OFF"ON / OFF status judged from the sliding switch (RR) sig-
nal is displayed.
PIIA0313E
ConnectorTe r m i n a l
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
P211 (R/B)
GroundSliding switch ON
(BACKWARD oper-
ation)0
Other than above Battery voltage
26 (P/B)Sliding switch ON
(FORWARD opera-
tion)0
Other than above Battery voltage
PIIA4577E
11 (R/B) - 7 (R/B) : Continuity should exist.
26 (P/B) - 1 (P/B) : Continuity should exist.
11 (R/B) - Ground : Continuity should not exist.
26 (P/B) - Ground : Continuity should not exist.
LIIA1125E

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3. CHECK SLIDING SWITCH
Check continuity between power seat switch LH as follows.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Replace power seat switch LH.
Reclining Switch InspectionEIS002YY
1. CHECK FUNCTION
With CONSULT-II
With “RECLN SW-FR, RECLN SW-RR” on the DATA MONITOR,
operate the reclining switch to check ON/OFF operation.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> Reclining switch circuit is OK.
NG >> GO TO 2.
Terminal
Condition Continuity
(+) (–)
7
3Sliding switch ON (BACKWARD operation) Yes
Other than above No
1Sliding switch ON (FORWARD operation) Yes
Other than above No
LIIA1126E
Monitor item [OPERA-
TION or UNIT]Contents
RECLN SW
–FR“ON/
OFF”ON/OFF status judged from the reclining switch (FR)
signal is displayed.
RECLN SW
–RR“ON/
OFF”ON/OFF status judged from the reclining switch (RR)
signal is displayed.
PIIA0313E
ConnectorTe r m i n a l s
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
P212 (O/B)
GroundReclining switch ON
(BACKWARD oper-
ation)0
Other than above Battery voltage
27 (G/B)Reclining switch ON
(FORWARD opera-
tion)0
Other than above Battery voltage
PIIA4580E

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AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
2. CHECK RECLINING SWITCH CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit and power seat switch LH.
2. Check continuity between driver seat control unit connector P2
terminals 12, 27 and power seat switch LH connector P8 termi-
nals 9, 10.
3. Check continuity between driver seat control unit connector P2
terminals 12, 27 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. RECLINING SWITCH INSPECTION
Check continuity between power seat switch LH as follows.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Replace power seat switch LH.12 (O/B) - 9 (O/B) : Continuity should exist.
27 (G/B) - 10 (G/B) : Continuity should exist.
12 (O/B) - Ground : Continuity should not exist.
27 (G/B) - Ground : Continuity should not exist.
LIIA1127E
Terminal
Condition Continuity
(+) (–)
9
3Reclining switch ON (BACKWARD operation) Yes
Other than above No
10Reclining switch ON (FORWARD operation) Yes
Other than above No
LIIA1128E

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Lifting Switch (Front) Circuit InspectionEIS002YZ
1. CHECK FUNCTION
With CONSULT-II
With “LIFT FR SW-UP, LIFT FR SW-DN” on the DATA MONITOR,
operate the lifting switch (front) to check ON/OFF operation.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> Lifting switch (front) circuit is OK.
NG >> GO TO 2.
2. CHECK LIFTING SWITCH (FRONT) CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit and power seat switch LH.
2. Check continuity between driver seat control unit connector P2
terminals 13, 28 and power seat switch LH connector P2 termi-
nals 5, 6.
3. Check continuity between driver seat control unit connector P2
terminals 13, 28 and ground
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
Monitor item [OPERA-
TION or UNIT]Contents
LIFT FR SW–
DN"ON/
OFF"ON / OFF status judged from the FR lifter switch
(DOWN) signal is displayed.
LIFT RR SW–
UP"ON/
OFF"ON / OFF status judged from the RR lifter switch (UP)
signal is displayed.
PIIA0323E
ConnectorTe r m i n a l s
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
P213 (L/B)
GroundLifting switch (front) ON
(DOWN operation)0
Other than above Battery voltage
28 (Y/B)Lifting switch (front) ON
(UP operation)0
Other than above Battery voltage
PIIA4583E
13 (L/B) - 5 (L/B) : Continuity should exist.
28 (Y/B) - 6 (Y/B) : Continuity should exist.
13 (L/B) - Ground : Continuity should not exist.
28 (Y/B) - Ground : Continuity should not exist.
LIIA1129E

SE-70
AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
3. CHECK LIFTING SWITCH (FRONT)
Check continuity between power seat switch LH as follows.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Replace power seat switch LH.
Lifting Switch (Rear) Circuit InspectionEIS002Z0
1. CHECK FUNCTION
With CONSULT-II
With “LIFT RR SW-UP, LIFT RR SW-DN” on the DATA MONITOR,
operate the rear lifting switch to check ON/OFF operation.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> Rear lifting switch circuit is OK.
NG >> GO TO 2.
Te r m i n a l s
Condition Continuity
(+) (–)
5
3Lifting switch (front) ON
(DOWN operation)Ye s
Other than above No
6Lifting switch (front) ON (UP operation) Yes
Other than above No
LIIA1130E
Monitor item [OPERATION or
UNIT]Contents
LIFT RR SW–UP “ON/OFF”Operation (ON)/open (OFF) status judged
from the RR lifter switch (UP) signal is dis-
played.
LIFT RR SW–DN “ON/OFF”Operation (ON)/open (OFF) status judged
from the RR lifter switch (DOWN) signal is
displayed.
PIIA0323E
ConnectorTe r m i n a l s
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
P214 (G/W)
GroundRear lifting switch ON
(DOWN operation)0
Other than above Battery voltage
29 (R/W)Rear lifting switch ON
(UP operation)0
Other than above Battery voltage
PIIA4586E

AUTOMATIC DRIVE POSITIONER
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Revision: August 20072004 QX56
2. CHECK LIFTING SWITCH (REAR) CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit and power seat switch LH.
2. Check continuity between driver seat control unit connector P2
terminals 14, 29 and power seat switch connector P8 terminals
2, 8.
3. Check continuity between driver seat control unit connector P2
terminals 14, 29 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK LIFTING SWITCH (REAR)
Check continuity between power seat switch LH as follows.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Replace power seat switch LH.
Power Seat Switch Ground InspectionEIS002Z1
1. CHECK POWER SEAT SWITCH GROUND CIRCUIT
Check continuity between power seat switch LH connector P8 termi-
nal 3 and ground.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Repair or replace harness.14 (G/W) - 8 (G/W) : Continuity should exist.
29 (R/W) - 2 (R/W) : Continuity should exist.
14 (G/W) - Ground : Continuity should not exist.
29 (R/W) - Ground : Continuity should not exist.
LIIA1131E
Terminals
Condition Continuity
(+) (–)
8
3Lifting switch (rear) ON
(DOWN operation)Ye s
Other than above No
2Lifting switch (rear) ON (UP operation) Yes
Other than above No
LIIA1132E
3 (B) - Ground : Continuity should exist.
LIIA1133E

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Revision: August 20072004 QX56
Pedal Adjusting Switch Circuit InspectionEIS002Z2
1. CHECK FUNCTION
With CONSULT-II
With “PEDAL SW-FR, PEDAL SW-RR” on the DATA MONITOR,
operate the pedal adjusting switch to check ON/OFF operation.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> Pedal adjusting switch circuit is OK.
NG >> GO TO 2.
2. CHECK PEDAL ADJUSTING SWITCH CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit and pedal adjusting switch.
2. Check continuity between driver seat control unit connector P2
terminals 15, 30 and pedal adjusting switch connector M96 ter-
minals 2, 3.
3. Check continuity between driver seat control unit connector P2
terminals 15, 30 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
Monitor item [OPERATION or
UNIT]Contents
PEDAL SW–FR “ON/OFF”Operation (ON)/open (OFF) status
judged from the pedal adjusting switch
(FR) signal is displayed.
PEDAL SW–RR “ON/OFF”Operation (ON)/open (OFF) status
judged from the pedal adjusting switch
(RR) signal is displayed.
PIIA4590E
ConnectorTe r m i n a l s
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
P215 (L)
GroundPedal adjusting switch
ON (BACKWARD oper-
ation)0
Other than above Battery voltage
30 (R)Pedal adjusting switch
ON (FORWARD opera-
tion)0
Other than above Battery voltage
PIIA4591E
15 (L) - 2 (L/Y) : Continuity should exist.
30 (R) - 3 (R) : Continuity should exist.
15 (L) - Ground : Continuity should not exist.
30 (R) - Ground : Continuity should not exist.
LIIA0726E

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2. CHECK DOOR MIRROR SWITCH (CHANGEOVER SWITCH)
Check continuity between door mirror switch as follows.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Replace door mirror switch.
Seat Memory Switch Circuit InspectionEIS002Z6
1. CHECK FUNCTION
With CONSULT-II
With “SET SW, MEMORY SW1, MEMORY SW2” on the DATA
MONITOR, operate the switch to check ON/OFF operation.
Without CONSULT-II
GO TO 2.
OK or NG
OK >> Seat memory switch circuit is OK.
NG >> GO TO 2.
Te r m i n a l s
Condition Continuity
(+) (–)
5
7Changeover switch RIGHT position Yes
Other than above No
6Changeover switch LEFT position Yes
Other than above No
LIIA1488E
Monitor item [OPERATION or
UNIT]Contents
MEMORY SW1 “ON/OFF”ON/OFF status judged from the seat
memory switch 1 signal is displayed.
MEMORY SW2 “ON/OFF”ON/OFF status judged from the seat
memory switch 2 signal is displayed.
SET SW “ON/OFF”ON/OFF status judged from the setting
switch signal is displayed.
PIIA0309E