Page 3483 of 4323

I15354
2
1
I14317
21
I1431821
I21531
21
I21532
21
± BODY ELECTRICALPOWER WINDOW CONTROL SYSTEM
BE±71
3475 Author: Date:
2005 SEQUOIA (RM1146U)
(b) Reverse the polarity and check that the motor turns coun-
terclockwise.
If operation is not as specified, replace the power window mo-
tor.
8. Front Door:
INSPECT PTC OPERATION
(a) Disconnect the connector from the wire harness side con-
nector.
(b) Connect the negative (±) lead from the ammeter to termi-
nal 1 of the motor side connector and the positive (+) lead
to negative terminal of the battery.
(c) Connect the positive (+) lead from the battery to terminal
2 of the motor side connector, and raise the window to the
fully closed position.
(d) Continue to apply voltage and check that the current
changes from approximately 14 A to less than 1 A within
4 to 90 seconds.
(e) Disconnect the leads from the terminals.
(f) Approximately 90 seconds later, connect the positive (+)
lead from the battery to terminal 1 and the negative (±)
lead to terminal 2, and check that the window begins to
goes down.
If operation is not as specified, replace the power window mo-
tor.
9. Rear Door:
INSPECT PTC OPERATION
(a) Disconnect the connector from the wire harness side con-
nector.
(b) Connect the negative (±) lead from the ammeter to termi-
nal 1 of the motor side connector and the positive (+) lead
to negative terminal of the battery.
(c) Connect the positive (+) lead from the battery to terminal
2 of the motor side connector, and raise the window to the
fully closed position.
(d) Continue to apply voltage and check that the current
changes from approximately 14 A to less than 1 A within
4 to 90 seconds.
(e) Disconnect the leads from the terminals.
(f) Approximately 90 seconds later, connect the positive (+)
lead from the battery to terminal 1 and the negative (±)
lead to terminal 2, and check that the window begins to
goes down.
If operation is not as specified, replace the power window mo-
tor.
Page 3487 of 4323

BE2MM±01
I18616
I18690
2
3 1DOWN UP
I27714
I27715
± BODY ELECTRICALBACK DOOR POWER WINDOW CONTROL SYSTEM
BE±75
3479 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. INSPECT BACK DOOR POWER WINDOW SWITCH
CONTINUITY
Switch positionTester connectionSpecified condition
UP3 ± 6Continuity
OFF±No continuity
DOWN3 ± 5Continuity
If continuity is not as specified, replace the switch.
2. INSPECT BACK DOOR KEY LOCK AND UNLOCK
SWITCH CONTINUITY (Back Door Control Switch)
Switch positionTester connectionSpecified condition
UP1 ± 3Continuity
OFF±No continuity
DOWN2 ± 3Continuity
If continuity is not as specified, replace the switch.
3. INSPECT BACK DOOR POWER WINDOW MOTOR OP-
ERATION
(a) Connect the positive (+) lead from the battery to terminal
1 and the negative (±) lead to terminal 4 and check that
the motor turns clockwise.
(b) Connect the positive (+) lead from the battery to terminal
4 and the negative (±) lead to terminal 1 and check that
the motor turns counterclockwise.
If operation is not as specified, replace the back door power
window motor.
Page 3522 of 4323

I27710
ForwardRelease
I07253
(a)
(b)
2
1
1 2
I11936
21
I11937
21
I07254
(a)
(b)
21
1 2
BE±110
± BODY ELECTRICALPOWER SEAT CONTROL SYSTEM
3514 Author: Date:
2005 SEQUOIA (RM1146U)
3. INSPECT DRIVER'S LUMBAR SUPPORT CONTROL
SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
Forward1 ± 2, 3 ± 4Continuity
OFF1 ± 2, 4 ± 5Continuity
Release1 ± 3, 4 ± 5Continuity
If continuity is not as specified, replace the switch.
4. INSPECT SLIDE MOTOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
1 and the negative (±) lead to terminal 2, check that the
motor turns clockwise.
(b) Reverse the polarity, check that the motor turns counter-
clockwise.
If operation is not as specified, replace the seat adjuster.
5. INSPECT SLIDE MOTOR PTC THERMISTOR OPERA-
TION
( ): Passenger Side
(a) Connect the positive (+) lead from the battery to terminal
2 (1), the positive (+) lead from the ammeter to terminal
1 (2) and the negative (±) lead to the battery negative (±)
terminal, then move the seat cushion to the rear position.
(b) Continue to apply voltage, check that current changes to
less than 1 ampere within 4 to 90 seconds.
(c) Disconnect the leads from terminals.
(d) Approximately 60 seconds later, connect the positive (+)
lead from the battery to terminal 1 (2) and the negative (±)
lead to terminal 2 (1), check that the seat cushion begins
to move forwards.
If operation is not as specified, replace the seat adjuster.
6. INSPECT FRONT TILT MOTOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
1 and the negative (±) lead to terminal 2, check that the
motor turns clockwise.
(b) Reverse the polarity, check that the motor turns counter-
clockwise.
If operation is not as specified, replace the seat adjuster.
Page 3523 of 4323

N22086
21
N22087
21
I07255
(a)
1(b)
22
1
I11940
21
I11941
21
± BODY ELECTRICALPOWER SEAT CONTROL SYSTEM
BE±111
3515 Author: Date:
2005 SEQUOIA (RM1146U)
7. INSPECT FRONT TILT MOTOR PTC THERMISTOR OP-
ERATION
(a) Connect the positive (+) lead from the battery to terminal
1, the positive (+) lead from the ammeter to terminal 2 and
the negative (±) lead to the battery negative (±) terminal,
then move the seat cushion to the highest position.
(b) Continue to apply voltage, check that the current changes
to less than 1 ampere within 4 to 90 seconds.
(c) Disconnect the leads from the terminals.
(d) Approximately 60 seconds later, connect the positive (+)
lead from the battery to terminal 2 and the negative (±)
lead to terminal 1, check that the seat cushion begins to
descend.
If operation is not as specified, replace the seat adjuster.
8. INSPECT LIFTER MOTOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
1 and the negative (±) lead to terminal 2, check that the
motor turns clockwise.
(b) Reverse the polarity, check that the motor turns counter-
clockwise.
If operation is not as specified, replace the seat adjuster.
9. INSPECT LIFTER MOTOR PTC THERMISTOR OPERA-
TION
(a) Connect the positive (+) lead from the battery to terminal
1, the positive (+) lead from the ammeter to terminal 2 and
the negative (±) lead to the battery negative (±) terminal,
then move the seat cushion to the lowest position.
(b) Continue to apply voltage, check that the current changes
to less than 1 ampere within 4 to 90 seconds.
(c) Disconnect the leads from the terminals.
(d) Approximately 60 seconds later, connect the positive (+)
lead from the battery to terminal 2 and the negative (±)
lead to terminal 1, check that the seat cushion begins to
ascend.
If operation is not as specified, replace the seat adjuster.
Page 3524 of 4323

I07256
(a)
(b)
21
1 2
N21868
21
N21869
21
I04163
21
I05473
21
BE±112
± BODY ELECTRICALPOWER SEAT CONTROL SYSTEM
3516 Author: Date:
2005 SEQUOIA (RM1146U)
10. INSPECT RECLINING MOTOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
1 and the negative (±) lead to terminal 2, check that the
motor turns clockwise.
(b) Reverse the polarity, check that the motor turns counter-
clockwise.
If operation is not as specified, replace the seat adjuster.
11. INSPECT RECLINING MOTOR PTC THERMISTOR OP-
ERATION
(a) Connect the positive (+) lead from the battery to terminal
2, the positive (+) lead from the ammeter to terminal 1 and
the negative (±) lead to the battery negative (±) terminal,
then recline the seat back to the most forward position.
(b) Continue to apply voltage, check that the current changes
to less than 1 ampere within 4 to 90 seconds.
(c) Disconnect the leads from the terminals.
(d) Approximately 60 seconds later, connect the positive (+)
lead from the battery to terminal 1 and the negative (±)
lead to terminal 2, check that the seat back begins to fall
backward.
If operation is not as specified, replace the seat adjuster.
12. INSPECT LUMBAR SUPPORT MOTOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
1 and the negative (±) lead to terminal 2, check that the
lumbar support moves to release side.
(b) Reverse the polarity, check that the lumbar support
moves forward.
If operation is not as specified, replace the seat adjuster.
Page 3539 of 4323
BE2MI±01
1 CLOCK WILL NOT OPERATE
I18689
Wire Harness Side:
B +GND
Ye s
Ye sNo
No
Is there battery positive voltage between terminal +B and body
ground.
Is there continuity between terminal GND and body ground.
Replace clock (Integration Control and Panel).Open or short circuit in wire harness between terminal
+B and DOME fuse.
Open circuit in wire harness between terminal
GND and body ground.
± BODY ELECTRICALCLOCK
BE±127
3531 Author: Date:
2005 SEQUOIA (RM1146U)
CLOCK
TROUBLESHOOTING
HINT:
Troubleshoot the clock according to the table below.
ProblemNo.
Clock will not operate1
Clock loses or gains time2
Allowable error (per day): ± 1.5 seconds
1. PROBLEM NO. 1
(a) Check that the battery positive voltage is 10 to 16 V.
If voltage is not as specified, replace the battery.
(b) Check that the DOME fuse is not blown.
If the fuse is blown, replace the fuse and check for a short.
(c) Troubleshoot the clock as follows.
HINT:
Inspect the connector on the wire harness side.
Page 3540 of 4323
2 CLOCK LOSES OR GAINS TIME
I18689
Wire Harness Side:
B +GND
Ye s
Is there battery positive voltage between terminal +B and
body ground.
Adjust or replace clock.Bellow 10 V
Locate cause and repair, or recharge battery.
BE±128
± BODY ELECTRICALCLOCK
3532 Author: Date:
2005 SEQUOIA (RM1146U)
2. PROBLEM NO. 2
(a) Check that the battery positive voltage is 10 to 16 V.
If voltage is not as specified, replace the battery.
(b) Inspect the error of the clock.
Allowable error (per day): ± 1.5 seconds
If the error exceeds the allowable value, replace the clock.
(c) Check that the clock adjusting button is struck and has
failed to return.
If the error exceeds the allowable value, replace the clock.
(d) Troubleshoot the clock according to the following flow±
chart.
HINT:
Inspect the connector on the wire harness side.
Page 3751 of 4323
AC1JY±05
EM6656
AC±16
± AIR CONDITIONINGDRIVE BELT
3743 Author: Date:
2005 SEQUOIA (RM1146U)
REMOVAL
REMOVE DRIVE BELT
Loosen the drive belt tension by turning the drive belt tensioner
counterclockwise, and remove the drive belt.