Page 3009 of 3383

SE-78
AUTOMATIC DRIVE POSITIONER
Revision: November 20092006 QX56
2. CHECK ADP STEERING WHEEL TILT SWITCH HARNESS CONTINUITY
1. Disconnect automatic drive positioner control unit connector and ADP steering wheel tilt switch.
2. Check continuity between automatic drive positioner control unit connector M33 terminals 1, 17 and ADP steering wheel tilt
switch connector M16 terminals 2, 3.
3. Check continuity between automatic drive positioner control unit connector M33 terminals 1, 17 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK ADP STEERING WHEEL TILT SWITCH
Check continuity between ADP steering wheel tilt switch terminals
as follows.
OK or NG
OK >> GO TO 4.
NG >> Replace ADP steering wheel tilt switch.
4. CHECK ADP STEERING WHEEL TILT SWITCH GROUND CIRCUIT
Check continuity between ADP steering wheel tilt switch connector
M16 terminal 1 and ground.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Replace or replace harness. 1 - 2
: Continuity should exist.
17 - 3 : Continuity should exist.
1 - Ground : Continuity should not exist.
17 - Ground : Continuity should not exist.
LIIA1434E
Terminals ConditionContinuity
2 1Tilt switch ON (UP operation)
Yes
Other than above No
3 Tilt switch ON (DOWN operation) Yes
Other than above
No
LIIA1435E
1 - Ground: Continuity should exist.
LIIA0490E
Page 3010 of 3383

AUTOMATIC DRIVE POSITIONERSE-79
C
DE
F
G H
J
K L
M A
B
SE
Revision: November 2009 2006 QX56
Front Door Switch LH Circuit InspectionEIS004YL
1. CHECK FUNCTION
With CONSULT-II
Touch "BCM" with “DOOR SW-DR ” on the DATA MONITOR, check
ON/OFF operation when the front door is open and closed.
*:Refer to SE-37, "DATA MONITOR" .
Without CONSULT-II
GO TO 2.
OK or NG
OK >> Front door switch LH circuit is OK.
NG >> GO TO 2.
2. CHECK FRONT DOOR SWITCH LH
1. Turn ignition switch OFF.
2. Disconnect front door switch LH.
3. Check continuity between front door switch LH terminal 2 and exposed metal of switch while pressing and releasing switch.
OK or NG
OK >> GO TO 3.
NG >> Replace front door switch LH.
3. CHECK HARNESS CONTINUITY
1. Disconnect BCM.
2. Check continuity between BCM connector M19 terminal 47 and front door switch LH connector B8 terminal 2.
3. Check continuity between BCM connector M19 terminal 47 and ground.
OK or NG
OK >> Front door switch LH circuit is OK.
NG >> Repair or replace harness.
Monitor item [OPERATION or UNIT] Contents
DOOR SW DR* “
ON/
OFF ”Door open (ON)/door closed (OFF) status judged
from the front door switch is displayed.
PIIA0291E
Terminals
ConditionContinuity
2Ground With the front door switch LH pressed No
With the front door switch LH released Yes
WIIA0644E
47 - 2
: Continuity should exist.
47 - Ground : Continuity should not exist.
LIIA1027E
Page 3011 of 3383

SE-80
AUTOMATIC DRIVE POSITIONER
Revision: November 20092006 QX56
UART Communication Line Circuit InspectionEIS004YM
1. CHECK UART LINE INPUT/OUTPUT SIGNAL 1
1. Turn ignition switch OFF.
2. Check signal between driver seat control unit connector and ground, with oscilloscope.
OK or NG
OK >> GO TO 2.
NG >> Check the following.
When voltage wave form does not appear with a constant voltage (approx. 5V), replace driver
seat control unit.
When voltage wave form does not appear with a constant voltage (approx. 0V), replace auto-
matic driver seat control unit.
2. CHECK UART LINE INPUT/OUTPUT SIGNAL 2
Check signal between automatic drive positioner control unit con-
nector ground, with oscilloscope.
OK or NG
OK >> GO TO 3.
NG >> Check the following.
When voltage wave form does not appear with a constant voltage (approx. 5V), replace auto-
matic drive positioner control unit.
When voltage wave form does not appear with a constant voltage (approx. 0V), replace driver
seat control unit.
Connector Te r m i n a l s
Condition Signal
(+) (-)
P2 17 Ground Pedal
adjusting
switch ON
(FOR-
WARD or
BACK-
WARD
operation)
PIIA4599E
PIIA4814E
Connector
Te r m i n a l s
Condition Signal
(+) (-)
M33 10 Ground Pedal
adjusting
switch ON
(FOR-
WARD or
BACK-
WARD
operation)
PIIA4816E
PIIA4813E
Page 3012 of 3383
AUTOMATIC DRIVE POSITIONERSE-81
C
DE
F
G H
J
K L
M A
B
SE
Revision: November 2009 2006 QX56
3. CHECK UART LINE HARNESS
1. Disconnect driver seat control unit and automatic drive posi- tioner control unit.
2. Check continuity between driver seat control unit connector P2 terminals 1, 17, and automatic drive positioner connector M33
terminals 10, 26.
3. Check continuity between driver seat control unit connector P2 terminals 1, 17 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK DRIVER SEAT CONTROL UNIT
Does the automatic drive positioner operate when the driver seat control unit is exchanged?
OK or NG
OK >> Replace driver seat control unit.
NG >> Replace automatic drive positioner control unit. 1 - 10
: Continuity should exist.
17 - 26 : Continuity should exist.
1 - Ground : Continuity should not exist.
17 - Ground : Continuity should not exist.
PIIA4598E
Page 3013 of 3383
SE-82
AUTOMATIC DRIVE POSITIONER
Revision: November 20092006 QX56
Removal and InstallationEIS004YN
Refer to ACC-3, "ACCELERATOR CONTROL SYSTEM" and BR-6, "BRAKE PEDAL" .
Page 3014 of 3383
POWER SEATSE-83
C
DE
F
G H
J
K L
M A
B
SE
Revision: November 2009 2006 QX56
POWER SEATPFP:87016
Wiring Diagram — SEAT — for Passenger SeatEIS004YO
WIWA1406E
Page 3015 of 3383
SE-84
HEATED SEAT
Revision: November 20092006 QX56
HEATED SEATPFP:87335
Description EIS004YP
When handling seat, be extremely careful not to scratch heating unit.
Front passenger seat cushion and seatbacks equipped with airbags cannot be disassembled. They are
replaced as assemblies only.
Do not use any organic solvent, such as thinner, benzene, alcohol, etc. to clean trim.
WIIA0031E
Page 3016 of 3383
HEATED SEATSE-85
C
DE
F
G H
J
K L
M A
B
SE
Revision: November 2009 2006 QX56
SchematicEIS004YQ
WIWA0586E