Page 97 of 5598
ADP-88
< DTC/CIRCUIT DIAGNOSIS >
TILT &TELESCOPIC SWITCH GROUND CIRCUIT
TILT &TELESCOPIC SWITCH GROUND CIRCUIT
Diagnosis ProcedureINFOID:0000000006248385
1.CHECK TILT & TELESCOP IC SWITCH GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect tilt & telescopic switch connector.
3. Check continuity between tilt & te lescopic switch harness connector and ground.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-40, "Intermittent Incident".
NO >> Repair or replace harness.
Tilt & telescopic switch
GroundContinuity
Connector Terminal
M102 1 Existed
Revision: 2010 May2011 QX56
Page 98 of 5598

SLIDING SENSORADP-89
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
K L
M A
B
ADP
N
O P
SLIDING SENSOR
Component Function CheckINFOID:0000000006248386
1.CHECK FUNCTION
1. Select “SLIDE PULSE” in “Data monitor” mode with CONSULT-III.
2. Check sliding 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-89, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000006248387
1.CHECK SLIDING 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 SLIDING SENSOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and sliding sensor connector.
3. Check continuity between driver seat control unit harness connector and sliding sensor harness connec-
tor.
4. Check continuity between driver s eat control unit harness connector and ground.
Monitor item Condition Value
SLIDE PULSE Seat sliding 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 18 Ground Seat sliding Operate
Other than the
above
0 or 5
JMJIA0119ZZ
Driver seat control unit Sliding motor
Continuity
Connector Terminal Connector Terminal
B452 18 B461 18 Existed
Revision: 2010 May2011 QX56
Page 99 of 5598

ADP-90
< DTC/CIRCUIT DIAGNOSIS >
SLIDING SENSOR
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness or connector.
3.CHECK SLIDING SENSOR POWER SUPPLY
1. Connect driver seat control unit connector.
2. Turn ignition switch ON.
3. Check voltage between sliding motor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 4.
4.CHECK SLIDING SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit connector.
3. Check continuity between driver seat control uni t harness connector and sliding motor harness connector.
4. Check continuity between driver seat control unit harness connector and ground.
Is the inspection result normal?
YES >> Replace driver seat control unit.
NO >> Repair or replace harness or connector.
5.CHECK SLIDING SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between slidi ng sensor harness connector and ground.
Is the inspection result normal?
YES >> Replace sliding motor.
NO >> Repair or replace harness or connector.
Driver seat control unit GroundContinuity
Connector Terminal
B452 18 Not existed
(+) (-)Voltage (V)
(Approx.)
Sliding motor
Connector Terminals B461 12 Ground 12
Driver seat control unit Sliding motor Continuity
Connector Terminal Connector Terminal
B452 12 B461 12 Existed
Driver seat control unit GroundContinuity
Connector Terminal
B452 12 Not existed
Sliding motor GroundContinuity
Connector Terminal
B461 43 Existed
Revision: 2010 May2011 QX56
Page 100 of 5598

RECLINING SENSORADP-91
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
K L
M A
B
ADP
N
O P
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
Page 101 of 5598

ADP-92
< DTC/CIRCUIT DIAGNOSIS >
RECLINING SENSOR
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness or connector.
3.CHECK RECLINING SENSOR POWER SUPPLY
1. Connect driver seat control unit connector.
2. Turn ignition switch ON.
3. Check voltage between reclining motor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 4.
4.CHECK RECLINING SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit connector.
3. Check continuity between driver seat control unit harness connector and reclining motor harness connec-
tor.
4. Check continuity between driver seat control unit harness connector and ground.
Is the inspection result normal?
YES >> Replace driver seat control unit.
NO >> Repair or replace harness or connector.
5.CHECK RECLINING SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between reclining motor harness connector and ground.
Is the inspection result normal?
YES >> Replace reclining motor.
NO >> Repair or replace harness or connector.
Driver seat control unit
GroundContinuity
Connector Terminal
B452 4 Not existed
(+) (-)Voltage (V)
(Approx.)
Reclining motor
Connector Terminals B454 12 Ground 12
Driver seat control unit Reclining motor Continuity
Connector Terminal Connector Terminal
B452 12 B454 12 Existed
Driver seat control unit GroundContinuity
Connector Terminal
B452 12 Not existed
Reclining motor GroundContinuity
Connector Terminal
B454 43 Existed
Revision: 2010 May2011 QX56
Page 102 of 5598

LIFTING SENSOR (FRONT)ADP-93
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
K L
M A
B
ADP
N
O P
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
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ADP-94
< DTC/CIRCUIT DIAGNOSIS >
LIFTING SENSOR (FRONT)
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness or connector.
3.CHECK LIFTING SENSOR (FRONT) POWER SUPPLY
1. Connect driver seat control unit connector.
2. Turn ignition switch ON.
3. Check voltage between lifting motor (front) harness connector and ground.
Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 4.
4.CHECK LIFTING SENSOR (FRONT) POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit connector.
3. Check continuity between driver seat control uni t harness connector and lifting motor (front) harness con-
nector.
4. Check continuity between driver seat control unit harness connector and ground.
Is the inspection result normal?
YES >> Replace driver seat control unit.
NO >> Repair or replace harness or connector.
5.CHECK LIFTING SENSOR (FRONT) GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between lifting motor (front) harness connector and ground.
Is the inspection result normal?
YES >> Replace lifting motor (front).
NO >> Repair or replace harness or connector.
Driver seat control unit
GroundContinuity
Connector Terminal
B452 19 Not existed
(+) (-)Voltage (V)
(Approx.)
Lifting motor (front)
Connector Terminals B455 12 Ground 12
Driver seat control un it Lifting motor (front)
Continuity
Connector Terminal Connector Terminal
B452 12 B455 12 Existed
Driver seat control unit GroundContinuity
Connector Terminal
B452 12 Not existed
Lifting motor (front) GroundContinuity
Connector Terminal
B455 43 Existed
Revision: 2010 May2011 QX56
Page 104 of 5598

LIFTING SENSOR (REAR)ADP-95
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
K L
M A
B
ADP
N
O P
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