2011 INFINITI QX56 BATTERY

RECLINING SENSORADP-91
< DTC/CIRCUIT DIAGNOSIS >
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RECLINING SENSOR
Component Function CheckINFOID:0000000006248388
1.CHECK FUNCTION
1. Select “RECLN PULSE” in “Data monitor” mode with CONSULT-III.
2. Check reclining sensor signal under the following conditions.
*1 : The value at the seat position attained when the battery is connected is considered to be 32768.
Is the indication normal?
YES >> INSPECTION END
NO >> Perform diagnosis procedure. Refer to ADP-91, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000006248389
1.CHECK RECLINING SENSOR SIGNAL
1. Turn ignition switch ON.
2. Read voltage signal between driver seat contro l unit harness connector and ground with oscilloscope.
Is the inspection result normal?
YES >> Replace driver seat control unit.
NO >> GO TO 2.
2.CHECK RECLINING SENSOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and reclining motor connector.
3. Check continuity between driver seat control unit harness connector and reclining motor harness connec-
tor.
4. Check continuity between driver s eat control unit harness connector and ground.
Monitor item Condition Value
RECLN PULSE Seat reclining Operate (forward)
Change (increase)
*1
Operate (backward)Change (decrease)*1
Release
No change*1
(+)
(-) Condition Signal
(Reference value)
Driver seat control unit
Connector Terminals
B452 4 Ground Seat reclining Operate
Other than the
above
0 or 5
JMJIA0119ZZ
Driver seat control unit Reclining motor
Continuity
Connector Terminal Connector Terminal
B4524B4544Existed
Revision: 2010 May2011 QX56

LIFTING SENSOR (FRONT)ADP-93
< DTC/CIRCUIT DIAGNOSIS >
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LIFTING SENSOR (FRONT)
Component Function CheckINFOID:0000000006248390
1.CHECK FUNCTION
1. Select “LIFT FR PULSE” in “Data monitor” mode with CONSULT-III.
2. Check the lifting sensor (front) signal under the following conditions.
*1 : The value at the seat position attained when the battery is connected is considered to be 32768.
Is the indication normal?
YES >> INSPECTION END
NO >> Perform diagnosis procedure. Refer to ADP-93, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000006248391
1.CHECK LIFTING SENSOR (FRONT) SIGNAL
1. Turn ignition switch ON.
2. Read the voltage signal driver seat contro l unit harness connector and ground with an oscilloscope.
Is the inspection result normal?
YES >> Replace driver seat control unit.
NO >> GO TO 2.
2.CHECK LIFTING SENSOR (FRONT) CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and lifting motor (front) connector.
3. Check continuity between driver seat control uni t harness connector and lifting motor (front) harness con-
nector.
4. Check continuity between driver s eat control unit harness connector and ground.
Monitor item Condition Value
LIFT FR PULSE Seat lifting (front) Operate (up)
Change (increase)
*1
Operate (down)Change (decrease)*1
Release
No change*1
(+)
(-) Condition Voltage (V)
(Approx.)
Driver seat control unit
Connector Terminals
B452 19 Ground Seat Lifting
(front)Operate
Other than the
above
0 or 5
JMJIA0119ZZ
Driver seat control unit Lifting motor (front)
Continuity
Connector Terminal Connector Terminal
B452 19 B455 19 Existed
Revision: 2010 May2011 QX56

LIFTING SENSOR (REAR)ADP-95
< DTC/CIRCUIT DIAGNOSIS >
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LIFTING SENSOR (REAR)
Component Function CheckINFOID:0000000006248392
1.CHECK FUNCTION
1. Select “LIFT RR PULSE” in “Data monitor” mode with CONSULT-III.
2. Check lifting sensor (rear) signal under the following conditions.
*1 : The value at the seat position attained when the battery is connected is considered to be 32768.
Is the indication normal?
YES >> INSPECTION END
NO >> Perform diagnosis procedure. Refer to ADP-95, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000006248393
1.CHECK LIFTING SENSOR (REAR) SIGNAL
1. Turn ignition switch ON.
2. Read voltage signal between driver seat contro l unit harness connector and ground with oscilloscope.
Is the inspection result normal?
YES >> Replace driver seat control unit.
NO >> GO TO 2.
2.CHECK LIFTING SENSOR (REAR) CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and lifting motor (rear) connector.
3. Check the continuity between driver seat cont rol unit harness connector and lifting motor (rear) harness
connector.
4. Check the continuity between driver seat control unit harness connector and ground.
Monitor item Condition Value
LIFT RR PULSE Seat lifting (rear) Operate (up)
Change (increase)
*1
Operate (down)Change (decrease)*1
Release
No change*1
(+)
(-) Condition Voltage (V)
(Approx.)
Driver seat control unit
Connector Terminals
B452 20 Ground Seat Lifting
(rear)Operate
Other than the
above
0 or 5
JMJIA0119ZZ
Driver seat control unit Lifting motor (rear)
Continuity
Connector Terminal Connector Terminal
B452 20 B456 20 Existed
Revision: 2010 May2011 QX56

TILT SENSORADP-97
< DTC/CIRCUIT DIAGNOSIS >
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TILT SENSOR
Component Function CheckINFOID:0000000006248394
1.CHECK FUNCTION
1. Select “TILT PULSE” in “Data monitor” mode with CONSULT-III.
2. Check tilt sensor signal under the following conditions.
*1 : The value at the seat position attained when the battery is connected is considered to be 32768.
Is the indication normal?
YES >> INSPECTION END
NO >> Perform diagnosis procedure. Refer to ADP-97, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000006248395
1.CHECK TILT SENSOR SIGNAL
1. Turn ignition switch ON.
2. Check voltage signal between driver seat c ontrol unit connector and ground with oscilloscope.
Is the inspection result normal?
YES >> Replace driver seat control unit.
NO >> GO TO 2.
2.CHECK TILT SENSOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit connector and tilt motor connector.
3. Check continuity between driver seat control unit harness connector and tilt motor harness connector.
4. Check continuity between driver s eat control unit harness connector and ground.
Monitor item Condition Value
TILT PULSE Steering column Operate (up)
Change (increase)
*1
Operate (down)Change (decrease)*1
Release
No change*1
(+)
(-) Condition Voltage (V)
(Approx.)
Driver seat control unit
Connector Terminals
B452 21 Ground Ste eri ng co l-
umnOperate
Other than the
above
0 or 5
JMJIA0119ZZ
Driver seat control unit Tilt motor
Continuity
Connector Terminal Connector Terminal
B452 21 M116 5 Existed
Driver seat control unit GroundContinuity
Connector Terminal
B452 21 Not existed
Revision: 2010 May2011 QX56

TELESCOPIC SENSORADP-99
< DTC/CIRCUIT DIAGNOSIS >
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TELESCOPIC SENSOR
Component Function CheckINFOID:0000000006248396
1.CHECK FUNCTION
1. Select “TELESCO PULSE” in “Dat a monitor” mode with CONSULT-III.
2. Check telescopic sensor signal under the following conditions.
*1 : The value at the seat position attained when the battery is connected is considered to be 32768.
Is the indication normal?
YES >> INSPECTION END
NO >> Perform diagnosis procedure. Refer to ADP-99, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000006248397
1.CHECK TELESCOPIC SENSOR SIGNAL
1. Turn ignition switch ON.
2. Check voltage signal between driver seat c ontrol unit connector and ground with oscilloscope.
Is the inspection result normal?
YES >> Replace driver seat control unit.
NO >> GO TO 2.
2.CHECK TELESCOPIC SENSOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit connector and telescopic motor connector.
3. Check continuity between driver seat control unit harness connector and telescopic motor harness con-
nector.
4. Check continuity between driver s eat control unit harness connector and ground.
Monitor item Condition Value
TELESCO PULSE Steering column Operate (forward)
Change (increase)
*1
Operate (backward)Change (decrease)*1
Release
No change*1
(+)
(-) Condition Voltage (V)
(Approx.)
Driver seat control unit
Connector Terminals
B452 5 Ground Ste eri ng co l-
umnOperate
Other than the
above
0 or 5
JMJIA0119ZZ
Driver seat control unit Telescopic motor
Continuity
Connector Terminal Connector Terminal
B4525M1175Existed
Revision: 2010 May2011 QX56

ADP-120
< DTC/CIRCUIT DIAGNOSIS >
SEAT MEMORY INDICATOR
SEAT MEMORY INDICATOR
Component Function CheckINFOID:0000000006248417
1.CHECK FUNCTION
1. Select “MEMORY SW INDCTR” in “A ctive test” mode with CONSULT-III.
2. Check the memory indicator operation.
Is the operation of relevant parts normal?
YES >> INSPECTION END
NO >> Perform diagnosis procedure. Refer to ADP-120, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000006248418
1.CHECK SEAT MEMORY SWITCH INDICATOR OPERATION
Check seat memory switch indicator operation.
Which is the malfunctioning indicator?
All indicators are NG>>GO TO 2.
An indicator is NG>>GO TO 4.
2.CHECK FUSE
1. Turn ignition switch OFF.
2. Check that the blown fuse after repairing the affected circuit if a fuse is blown.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
3.CHECK SEAT MEMORY SWITCH INDICATOR POWER SUPPLY
Check voltage between seat memory switch harness connector and ground.
Is the inspection result normal?
YES >> Replace seat memory switch.
NO >> Repair or replace harness or connector.
4.CHECK SEAT MEMORY SW ITCH INDICATOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect driver seat control uni t and seat memory switch connector.
3. Check continuity between driver seat control unit harness connector and seat memory switch harness
connector.
Te s t i t e m D e s c r i p t i o n
MEMORY SW INDCTR OFF
Memory switch indicatorOFF
ON-1 Indicator 1: ON
ON-2 Indicator 2: ON
Signal name Fuse No.
Battery power supply 10 (10 A)
(+) (-)Voltage (V)
(Approx.)
Seat memory switch
Connector Terminals D13 5 Ground Battery voltage
Revision: 2010 May2011 QX56

SEAT MEMORY SWITCHADP-137
< REMOVAL AND INSTALLATION >
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SEAT MEMORY SWITCH
Removal and InstallationINFOID:0000000006248443
REMOVAL
CAUTION:
When removing and in stalling, use shop cloths to protect parts from damage.
1. Remove front door garnish (1). Refer to INT-14, "
Removal and
Installation".
2. Press pawls and remove seat memory switch (2) from front door garnish (1), with flat-bladed screw driver (A).
INSTALLATION
Install in the reverse order of removal.
CAUTION:
Be sure to clump the harness to the right place.
NOTE:
After installing the driver seat, perform additional service when removing battery negative terminal. Refer to
ADP-51, "
ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL : Description".
: Pawl
JMJIA1817ZZ
Revision: 2010 May2011 QX56

ADP-138
< REMOVAL AND INSTALLATION >
POWER SEAT SWITCH
POWER SEAT SWITCH
Removal and InstallationINFOID:0000000006248444
REMOVAL
CAUTION:
When removing and installing, use shop cloths to protect parts from damage.
1. Remove seat cushion outer finisher (1). Refer to SE-116, "
SEAT
CUSHION : Disassembly and Assembly".
2. Remove screws (A).
3. Remove power seat switch (2) from seat cushion outer finisher (1).
INSTALLATION
Install in the reverse order of removal.
CAUTION:
Be sure to clump the harness to the right place.
NOTE:
After installing the driver seat, perform additional se rvice when removing battery negative terminal. Refer to
ADP-51, "
ADDITIONAL SERVICE WHEN REMOVING BATTE RY NEGATIVE TERMINAL : Description".
JMJIA3780ZZ
Revision: 2010 May2011 QX56