ignition INFINITI QX56 2004 Factory Service Manual

SE-56
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

SE-58
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

AUTOMATIC DRIVE POSITIONER
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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

AUTOMATIC DRIVE POSITIONER
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Revision: August 20072004 QX56
2. CHECK MIRROR SENSOR INSPECTION
With CONSULT–II
Check that “ON” is displayed on “MIR/SE LH R–L, MIR/SE LH U–
D" in the DATA MONITOR.
Without CONSULT–II
1. Turn ignition switch to ACC.
2. Check voltage between door mirror LH connector and ground.
OK or NG
OK >> Mirror sensor LH is OK.
NG >> GO TO 3.
3. CHECK HARNESS CONTINUITY 1
1. Disconnect automatic drive positioner control unit and door mirror LH.
2. Check continuity between automatic drive positioner control unit connector M34 terminals 33, 41 and door
mirror LH connector D4 terminals 5, 6.
3. Check continuity between automatic drive positioner control unit
connector M34 terminal 33, 41 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
Monitor item [OPERATION or
UNIT]Contents
MIR/
SENLHR–L“V”Voltage output from door mirror LH sensor (LH/
RH) is displayed.
MIR/
SENLHU–D“V”Voltage output from door mirror LH sensor (UP/
DOWN) is displayed.
Con-
nectorTerminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
D47 (L/Y)
GroundMirror motor is
operated UP or
DOWN Changes between
3.4 (close to peak) –
0.6 (close to valley)
8 (G)Mirror motor is
operated LEFT or
RIGHTChanges between
3.4 (close to right edge) –
0.6 (close to left edge)
PIIA0197E
LIIA1482E
33 (W/L) - 5 (W/L) : Continuity should exist.
41 (W/G) - 6 (W/G) : Continuity should exist.
33 (W/L) - Ground : Continuity should not exist.
41 (W/G) - Ground : Continuity should not exist.
LIIA1483E

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AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
4. CHECK HARNESS CONTINUITY 2
1. Disconnect automatic drive positioner control unit and door mirror LH.
2. Check continuity between automatic drive positioner control unit connector M33 terminals 6, 22 and door
mirror LH connector D4 terminals 7, 8.
3. Check continuity between automatic drive positioner control unit
connector M33 terminals 6, 22 and ground.
OK or NG
OK >> Replace door mirror LH.
NG >> Repair or replace harness.
Mirror Sensor RH Circuit Check EIS002YW
1. CHECK DOOR MIRROR FUNCTION
Check the following items.
Operation malfunction in memory control
NOTE:
If a door mirror face position is set to an implausible angle, the set position may not be reproduced.
OK or NG
OK >> GO TO 2.
NG >> Repair the malfunctioning parts, and check the symptom again.
2. CHECK MIRROR SENSOR INSPECTION
With CONSULT–II
Check that “ON” is displayed on “MIR/SE RH R–L, MIR/SE RH U–
D" in the DATA MONITOR.
Without CONSULT–II
1. Turn ignition switch to ACC.
2. Check voltage between door mirror RH connector and ground.
OK or NG
OK >> Mirror sensor RH is OK.
NG >> GO TO 3.6 (L/Y) - 7 (L/Y) : Continuity should exist.
22 (G) - 8 (G) : Continuity should exist.
6 (L/Y) - Ground : Continuity should not exist.
22 (G) - Ground : Continuity should not exist.
LIIA1484E
Monitor item [OPERATION
or UNIT]Contents
MIR/
SENRHR–L“V”Voltage output from door mirror RH sensor (LH/
RH) is displayed.
MIR/
SENRHU–D“V”Voltage output from door mirror RH sensor (UP/
DOWN) is displayed.
Con-
nectorTerminals (Wire color)
ConditionVoltage(V)
(Approx.)
(+) (–)
D1077 (R/B)
GroundMirror motor is
operated UP or
DOWN Changes between
3.4 (close to peak) –
0.6 (close to valley)
8 (L/W)Mirror motor is
operated LEFT or
RIGHTChanges between
3.4 (close to left edge) –
0.6 (close to right edge)
PIIA0197E
LIIA1485E

SE-64
AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
Steering Wheel Tilt Sensor Circuit InspectionEIS0038M
1. CHECK FUNCTION
With CONSULT-II
Operate the pedal adjusting switch with “TILT 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 connector
and ground.
OK or NG
OK >> Steering wheel tilt sensor circuit is OK.
NG >> GO TO 2.
Monitor item [OPERA-
TION or UNIT]Contents
TILT
SEN“V”The tilt position (voltage) judged from the tilt sensor sig-
nal is displayed.
PIIA0295E
ConnectorTerminals
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
M33 7 (Y/BR) GroundPedal
front end position0.6
Pedal
back end position4.5
LIIA0485E

SE-66
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

AUTOMATIC DRIVE POSITIONER
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Revision: August 20072004 QX56
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

AUTOMATIC DRIVE POSITIONER
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Revision: August 20072004 QX56
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