Inspection Procedure

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

The sliding roof key-linked function and transmitter-linked function can be customized. Make sure that both functions are ON (See CUSTOMIZE PARAMETERS ).
When the sliding roof drive gear sub-assembly is reinstalled or replaced, the sliding roof drive gear sub-assembly must be initialized (See INITIALIZATION ).
Since the sliding roof system has functions that use BEAN communication, first confirm that there is no malfunction in the communication system by inspecting the BEAN communication functions in accordance with the How to Proceed with Troubleshooting procedure. Then, conduct the following inspection procedure.

CHECK REMOTE CONTROL FUNCTION

Check the remote control function (See OPERATION CHECK )

Result

RESULT REFERENCE

Result	Proceed to
OK	A
Key-linked function does not operate	B
Transmitter-linked function does not operate	C

B: Go to step 2

C: Go to step 4

A: USE SIMULATION METHOD TO CHECK (See HOW TO PROCEED WITH TROUBLESHOOTING )

CHECK POWER DOOR LOCK CONTROL FUNCTION
1. Check the power door lock control function (See OPERATION CHECK ).
  OK: Power door lock control function operates normally.
NG: GO TO POWER DOOR LOCK CONTROL SYSTEM (See HOW TO PROCEED WITH TROUBLESHOOTING )

OK: Go to next step

CHECK KEY-LINKED FUNCTION

Check the key-linked function (driver door only).

Insert the key into the driver side door key lock cylinder, and turn the key to the UNLOCK position for approximately 1.5 seconds or more. Check that the windows start going down and the sliding roof starts moving (SLIDE OPEN/TILT UP operation). Then release the key and check that the windows and sliding roof stops moving.
HINT:

Turn and hold the key to the UNLOCK position 2.5 seconds or more, then the sliding roof starts moving (SLIDE OPEN/TILT UP operation).

Insert the key into the driver side door key lock cylinder, and turn the key to the LOCK position for approximately 1.5 seconds or more. Check that the windows start going up and the sliding roof starts moving (SLIDE CLOSE/TILT DOWN operation). Then release the key and check that the windows and sliding roof stops moving.

HINT:

Turn and hold the key to the LOCK position 2.5 seconds or more, then the sliding roof starts moving (SLIDE CLOSE/TILT DOWN operation).

Result

RESULT REFERENCE

Result	Proceed to
Both the power windows and the sliding roof do not move	A
Only the sliding roof does not move	B

B: REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU) (See REMOVAL )

A: GO TO POWER WINDOW CONTROL SYSTEM (See HOW TO PROCEED WITH TROUBLESHOOTING )

CHECK WIRELESS DOOR LOCK CONTROL FUNCTION
1. Check the wireless door lock control function (See OPERATION CHECK ).
  OK: Wireless door lock control function operates normally.
NG: GO TO WIRELESS DOOR LOCK CONTROL SYSTEM (See HOW TO PROCEED WITH TROUBLESHOOTING )

OK: Go to next step

CHECK TRANSMITTER-LINKED FUNCTION

Check the transmitter-linked function.

Make sure that the electrical key is not in the cabin, all doors closed.

Hold down the transmitter UNLOCK switch 2.4 seconds or more Check that the windows start going down and the sliding roof starts moving (SLIDE OPEN/TILT UP operation). Then release the switch and check that the windows and sliding roof stops moving.

HINT:

Hold down the transmitter UNLOCK switch 3.4 seconds or more, then the sliding roof starts moving (SLIDE OPEN/TILT UP operation).

Result

RESULT REFERENCE

Result	Proceed to
Both the power windows and the sliding roof do not move	A
Only the sliding roof does not move	B

B: REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU) (See REMOVAL )

A: GO TO POWER WINDOW CONTROL SYSTEM (See HOW TO PROCEED WITH TROUBLESHOOTING )