Toyota Sequoia (2005). Manual - part 469

I18701

4

3

10

9

W–B

S19
Sliding Roof
Control ECU

UP

DWN

CLS

OPN

J8
J/C

O5

9

O5

10

O5

12

O5

11

UP

DWN

CLS

OPN

E

O5

1

W–B

1M

7

1F

10

IE

A

Instrument Panel J/B

Overhead Module

R–Y

R–W

G–Y

P–B

–

DIAGNOSTICS

SLIDING ROOF SYSTEM

DI–1671

1865

Sliding Roof Control Switch Circuit

CIRCUIT DESCRIPTION

The sliding roof control switch is built into the overhead module.

WIRING DIAGRAM

DI94F–05

DI–1672

–

DIAGNOSTICS

SLIDING ROOF SYSTEM

1866

INSPECTION PROCEDURE

HINT:
If not using the hand–held tester, start from STEP 2.

1

Check sliding roof control switch operation.

PREPARATION:
(a)

Connect the hand–held tester to the DLC3.

(b)

Turn ignition switch ON and hand–held tester main switch ON.

(c)

Select the DATA LIST mode on the hand–held tester.

CHECK:
Check that switch status (ON/OFF) changes on the screen of the  hand–held tester as the sliding roof control
switch of the vehicle is turned.
SLIDE ROOF:

Item

Measurement Item/

Display (Range)

Normal condition

Diagnostic Note

OPEN SW

Sliding roof open SW

signal/ON or OFF

ON: Sliding roof is open

OFF: Sliding roof is close

–

CLOSE SW

Sliding roof close SW

signal/ON or OFF

ON: Sliding roof is close

OFF: Sliding roof is open

–

UP SW

Sliding roof up SW sig-

nal/ON or OFF

ON: Sliding roof is up

OFF: Sliding roof is down

–

DOWN SW

Sliding roof down SW

signal/ON or OFF

ON: Sliding roof is down

OFF: Sliding roof is up

–

OK:

The switch status changes in response to the vehicle switch operation.

NG

Replace sliding roof control switch or overhead
module.

OK

I21519

I21520

–

DIAGNOSTICS

SLIDING ROOF SYSTEM

DI–1673

1867

2

Check sliding roof control switch or overhead module.

PREPARATION:
Remove overhead module.
CHECK:
Check continuity between terminals when switch operated.
OK:

Switch position

Tester connection

Specified condition

SLIDE OPEN

11 – 1

Continuity

SLIDE OFF

11 –1, 12 – 1

No continuity

SLIDE CLOSE

12 – 1

Continuity

TILT DOWN

10 – 1

Continuity

TILT OFF

9 – 1, 12 – 1

No continuity

TILT UP

9 – 1

Continuity

PREPARATION:
Remove sliding roof control switch.
CHECK:
Check continuity between terminals when switch operated.
OK:

Switch position

Tester connection

Specified condition

SLIDE OPEN

3 – 5

Continuity

SLIDE OFF

3 – 4, 3 – 5

No continuity

SLIDE CLOSE

3 – 4

Continuity

TILT DOWN

2 – 3

Continuity

TILT OFF

1 – 3, 2 – 3

No continuity

TILT UP

1 – 3

Continuity

NG

Replace sliding roof control switch or overhead
module.

OK

DI–1674

–

DIAGNOSTICS

SLIDING ROOF SYSTEM

1868

3

Check for open and short in harness and connectors between sliding roof con-
trol ECU and sliding roof control switch or overhead module (See page 

IN–35

).

NG

Repair and replace harness or connector.

OK

Proceed to next circuit inspection shown in
problem symptoms table 
(See page 

DI–1664

).