2004 INFINITI QX56 matic j

AUTOMATIC DRIVE POSITIONER
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ACTIVE TEST
CAUTION:
During vehicle driving, do not perform active test.
NOTE:
If active test is performed, reset seat memory and key fob interlock drive positioner after performing work.
DISPLAY ITEM LIST
CAN Communication Inspection Using CONSULT-II (Self-Diagnosis)EIS002YH
1. SELF-DIAGNOSTIC RESULT CHECK
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. Connect to CONSULT-II, and select “AUTO DRIVE POS.” on the “SELECT DIAG SYSTEM” screen.
2. Select “SELF-DIAG RESULTS” on "SELECT DIAG MODE" screen.
3. Check display content in self-diagnostic results.
Contents displayed
No malfunction>>Inspection End.
Malfunction in CAN communication system>>After printing the monitor items, go to “CAN System”. Refer to
LAN-3, "
Precautions When Using CONSULT-II" .
Symptom ChartEIS002YI
MIR/SEN LH U–D “V” Voltage output from LH door mirror sensor (UP/DOWN) is displayed.
PEDAL SEN “V”The pedal position (voltage) judged from the pedal adjust sensor signal is dis-
played. Monitor item [OPERATION or UNIT] Contents
Test item Description
SEAT SLIDE The sliding motor is activated by receiving the drive signal.
SEAT RECLINING The reclining motor is activated by receiving the drive signal.
SEAT LIFTER FR The lifting motor (front) is activated by receiving the drive signal.
SEAT LIFTER RR The lifting motor (rear) is activated by receiving the drive signal.
PEDAL MOTOR The pedal adjust motor is activated by receiving the drive signal.
MEMORY SW INDCTR The memory switch indicator is lit by receiving the drive signal.
MIRROR MOTOR RHThe RH mirror motor moves the mirror UP/DOWN and LEFT/RIGHT by receiving the drive
signal.
MIRROR MOTOR LHThe LH mirror motor moves the mirror UP/DOWN and LEFT/RIGHT by receiving the drive
signal.
CONSULT-II display code Diagnosis item
U1000INITIAL DIAG
TRANSMIT DIAG
BSM
METER/M&A
ECM
SymptomDiagnoses / service procedure Refer to
page
Only setting change function cannot be set with display.1. Preliminary checkSE-34
2. CAN communication inspection using CONSULT-II (self-
diagnosis)SE-41
3. If the above systems are normal, check display systemAV- 6 1

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AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
A part of seat system does not operate (both automati-
cally and manually).1. Sliding motor circuit inspection SE-43
2. Reclining motor circuit inspection SE-44
3. Lifting motor (front) circuit inspectionSE-46
4. Lifting motor (rear) circuit inspectionSE-47
5. If the above systems are normal, replace the driver seat
control unitSE-11
A part of pedal adjust and door mirror does not operate
(both automatically and manually).1. Pedal adjusting motor circuit inspectionSE-492. Mirror motor LH circuit check SE-50
3. Mirror motor RH circuit check SE-52
4. If the above systems are normal, replace the automatic
drive positioner control unit.SE-11
A part of seat system does not operate (only automatic
operation).1. Sliding sensor circuit inspectionSE-55
2. Reclining sensor circuit inspectionSE-56
3. Lifting sensor (front) circuit inspectionSE-57
4. Lifting sensor (rear) circuit inspectionSE-58
5. If the above systems are normal, replace the driver seat
control unitSE-11
A part of door mirror system does not operate (only
automatic operation).1. Mirror sensor LH circuit checkSE-602. Mirror sensor RH circuit checkSE-62
3. If the above systems are normal, replace the automatic
drive positioner control unit.SE-11
All of the automatic operations do not operate.1. Park switch circuit inspectionSE-81
2. UART communication line circuit inspectionSE-85
3. Pedal adjusting sensor circuit inspectionSE-59
4. Steering wheel tilt sensor circuit inspectionSE-64
4. If all the above systems are normal, replace the auto-
matic drive positioner control unit.SE-11
A part of seat system does not operate (only manual
operation).1. Sliding switch circuit inspectionSE-66
2. Reclining switch circuit inspectionSE-67
3. Lifting switch (front) circuit inspectionSE-69
4. Lifting switch (rear) circuit inspectionSE-70
5. If the above systems are normal, replace the driver seat
control unitSE-11
A part of pedal adjust and door mirror does not operate
(only manual operation).1. Pedal adjusting switch circuit inspection SE-72
2. Door mirror switch (change over switch) circuit inspection SE-74
3. Door mirror switch (mirror switch) switching circuit
inspection SE-75
4. If the above systems are normal, replace the automatic
drive positioner control unitSE-11
Only memory switch operation.1. Seat memory switch circuit inspectionSE-772. If the above systems are normal, replace the driver seat
control unitSE-11
Seat memory indicator lamps 1 and 2 do not illuminate.1. Seat memory indicator lamp circuit inspectionSE-792. If all the above systems are normal, replace the driver
seat control unit.SE-11
SymptomDiagnoses / service procedure Refer to
page

AUTOMATIC DRIVE POSITIONER
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Sliding Motor Circuit InspectionEIS002YJ
1. CHECK SEAT SLIDING MECHANISM
Check the following.

Operation malfunction caused by sliding rail deformation, pinched harness or other foreign materials

Operation malfunction caused by foreign materials adhered to the sliding motor LH or sliding rail connec-
tor rod

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 “SEAT SLIDE” in ACTIVE TEST.
Without CONSULT-II
GO TO 3.
OK or NG
OK >> Sliding motor circuit is OK.
NG >> GO TO 3.
The Entry/Exiting does not operate when door is opened
and closed.
(The Entry/Exiting operates with key switch)1. Front door switch circuit inspectionSE-84
2. If all the above systems are normal, replace the BCM.BCS-19
Only door mirror system does not operate (only manual
operation).1.Door mirror switch ground circuit inspectionSE-76
Only door mirror system does not operate (only auto-
matic operation).1. Door mirror sensor power supply and ground circuit
inspectionSE-80
Only seat system does not operate (only manual opera-
tion).1. Power seat switch ground circuit inspectionSE-71
SymptomDiagnoses / service procedure Refer to
page
Test item Description
SEAT SLIDE The sliding motor is activated by receiving the drive signal.
PIIA0265E

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AUTOMATIC DRIVE POSITIONER
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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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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

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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

AUTOMATIC DRIVE POSITIONER
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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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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