Page 1873 of 4323
I18701
4
3
10
9 W±BS19
Sliding Roof
Control ECU
UP
DWN
CLS
OPN J8
J/CO59
O5 10
O512
O511 UP
DWN
CLS
OPN E O51
W±B1M7
1F10
IEAInstrument Panel J/BOverhead Module
R±Y
R±W
G±Y
P±B
± DIAGNOSTICSSLIDING ROOF SYSTEM
DI±1671
1865 Author: Date:
2005 SEQUOIA (RM1146U)
Sliding Roof Control Switch Circuit
CIRCUIT DESCRIPTION
The sliding roof control switch is built into the overhead module.
WIRING DIAGRAM
DI94F±05
Page 1874 of 4323

DI±1672
± DIAGNOSTICSSLIDING ROOF SYSTEM
1866 Author: Date:
2005 SEQUOIA (RM1146U)
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:
ItemMeasurement Item/
Display (Range)Normal conditionDiagnostic Note
OPEN SWSliding roof open SW
signal/ON or OFFON: Sliding roof is open
OFF: Sliding roof is close±
CLOSE SWSliding roof close SW
signal/ON or OFFON: Sliding roof is close
OFF: Sliding roof is open±
UP SWSliding roof up SW sig-
nal/ON or OFFON: Sliding roof is up
OFF: Sliding roof is down±
DOWN SWSliding roof down SW
signal/ON or OFFON: 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
Page 1875 of 4323
I21519
I21520
± DIAGNOSTICSSLIDING ROOF SYSTEM
DI±1673
1867 Author: Date:
2005 SEQUOIA (RM1146U)
2 Check sliding roof control switch or overhead module.
PREPARATION:
Remove overhead module.
CHECK:
Check continuity between terminals when switch operated.
OK:
Switch positionTester connectionSpecified condition
SLIDE OPEN11 ± 1Continuity
SLIDE OFF11 ±1, 12 ± 1No continuity
SLIDE CLOSE12 ± 1Continuity
TILT DOWN10 ± 1Continuity
TILT OFF9 ± 1, 12 ± 1No continuity
TILT UP9 ± 1Continuity
PREPARATION:
Remove sliding roof control switch.
CHECK:
Check continuity between terminals when switch operated.
OK:
Switch positionTester connectionSpecified condition
SLIDE OPEN3 ± 5Continuity
SLIDE OFF3 ± 4, 3 ± 5No continuity
SLIDE CLOSE3 ± 4Continuity
TILT DOWN2 ± 3Continuity
TILT OFF1 ± 3, 2 ± 3No continuity
TILT UP1 ± 3Continuity
NG Replace sliding roof control switch or overhead
module.
OK
Page 1876 of 4323
DI±1674
± DIAGNOSTICSSLIDING ROOF SYSTEM
1868 Author: Date:
2005 SEQUOIA (RM1146U)
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).
Page 1877 of 4323

Limit
Switch
No. 1 Sliding
Roof
Status
Fully
Opened
SlidingFully
ClosedTilting
Limit
Switch
No. 2250 mm point from fully
opened position
About 10 mm
± DIAGNOSTICSSLIDING ROOF SYSTEM
DI±1675
1869 Author: Date:
2005 SEQUOIA (RM1146U)
Sliding Roof Pulse Plate Circuit
WIRING DIAGRAM
See page DI±1668.
INSPECTION PROCEDURE
HINT:
If not using the hand±held tester, start from STEP 3.
1 Check sliding roof pulse plate 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:
(a) Operate the sliding roof.
(b) At this time, check that status (ON/OFF) of limit switch 1 and limit switch 2 changes on the hand±held
tester screen as shown in the chart below.
SLIDE ROOF:
ItemMeasurement Item/
Display (Range)Normal conditionDiagnostic Note
LIMIT SW 1Position SW NO.1/
ON or OFFON: 250 mm point from fully opened position
OFF: Sliding roof fully closed position±
LIMIT SW 2Position SW NO.2/
ON or OFFON: Sliding roof fully closed position
OFF: Sliding roof except fully closed position±
OK:
NG Replace sliding roof gear assembly.
OK
DI279±11
Page 1878 of 4323
DI±1676
± DIAGNOSTICSSLIDING ROOF SYSTEM
1870 Author: Date:
2005 SEQUOIA (RM1146U)
2 Check sliding roof motor status.
PREPARATION:
Connect the hand±held tester to the DLC3.
(a) Enter into ACTIVE TEST mode of hand±held tester.
CHECK:
(a) Check that ºSliding roof motorº operates as the hand±held tester directs.
(b) At this time, check that motor status changes on the screen of the hand±held tester as the sliding roof
switch of the vehicle is turned.
SLIDE ROOF:
ItemTest DetailsDiagnostic Note
SLIDE ROOFSliding roof CLOS/UP ± OPN/DWNDuring this ACTIVE TEST, jam protection caught
detection can be monitored.
NOTICE:
Caution is necessary for a part of body not to be caught in as the jam protection system does not
operate during conducting ACTIVE TEST.
OK:
The motor operates normally.
NG Replace sliding roof gear assembly.
OK
Go to step NO TAG.
Page 1879 of 4323
CLOSE/UP
(OPEN/DOWN)
SWITCHON
OFF
Close
(Down)
Roof OperationStop Forced Operation Reverse
Stop
Close (Down)
Close Position Approx. 10 sec.
± DIAGNOSTICSSLIDING ROOF SYSTEM
DI±1677
1871 Author: Date:
2005 SEQUOIA (RM1146U)
3 Perform forced operation.
Operate the sliding roof control switch in the CLOSE/UP direction. The jam protection function starts to oper-
ate and reverses. Keeping the CLOSE/UP direction further some 10 seconds restricts the jam protection
function forcibly and begins manual operation.
HINT:
To conduct the sliding roof alignment, restricting the jam protection function is required.
NEXT
4 Check sliding roof glass alignment (Mechanical malfunction)
(See page IN±35).
NG Adjust sliding roof (See page BO±82).
OK
Replace sliding roof gear assembly.
Page 1880 of 4323
DID97±01
DI±1678
± DIAGNOSTICSBODY CONTROL SYSTEM
1872 Author: Date:
2005 SEQUOIA (RM1146U)
BODY CONTROL SYSTEM
PRECAUTION
NOTICE:
When disconnecting the battery terminal, initialize the following system after the terminal is recon-
nected.
System NameSee Page
Back Door Power Window Control SystemBE±77