Component Tests and General Diagnostics

SLIDING ROOF: SLIDING ROOF SYSTEM: ON-VEHICLE INSPECTION

1. CHECK THE AUTO SLIDE-OPEN / CLOSE OPERATION

NOTICE:
If the sliding roof system has not been initialized, AUTO slide open/close operation will not function.

HINT
Initialize the sliding roof system after any of the following:

* The battery is disconnected.
* The S/ROOF fuse is replaced.
* The sliding roof control ECU (sliding roof drive gear sub-assembly) is replaced.
* The sliding roof is removed and then reinstalled or replaced.

(a) Initialize the sliding roof system.

(1) Turn the ignition switch on (IG).

(2) Using the tilt up switch, tilt the roof fully upward, and then using the slide open switch, tilt the roof fully downward.

(3) Using the slide open switch, fully open the roof, and then using the tilt up switch, fully close it.

(b) Check the AUTO slide-open operation.

(1) Turn the ignition switch on (IG).

(2) If the roof glass is not fully closed, slide or tilt it so that it is fully closed.

(3) Press the sliding roof OPEN switch for 0.3 seconds or more. The roof glass should automatically slide open and stop slightly before the fully open position.

(c) Check the AUTO slide-close operation.

(1) Turn the ignition switch on (IG).

(2) Press the sliding roof CLOSE (tilt up) switch for 0.3 seconds or more. The roof glass should automatically close.

(3) If the TILT UP or SLIDE OPEN switch is pressed while the roof glass is in motion, the roof glass will stop moving.

(4) If the roof glass cannot be fully closed using the AUTO operation (due to the jam protection function):

* Visually check if there is any foreign object between the sliding roof rail and the sliding roof glass.

* Check if the alignment of the sliding roof glass is within the specified range Programming and Relearning.

If no problems are found with the above checks, then perform the following operation to fully close the roof glass forcedly and check if the AUTO operation returns to normal. (Forced operation)

If the roof glass does not operate normally even after performing the above procedures, then replace the sliding roof control ECU (Sliding roof drive gear sub-assembly).

2. CHECK THE AUTO TILT-UP / DOWN OPERATION

NOTICE:
If the sliding roof system has not been initialized, then AUTO slide tilt up/down operation will not function.

HINT
Initialize the sliding roof system after any of the following:

* The battery is disconnected.
* The S/ROOF fuse is replaced.
* The sliding roof control ECU (sliding roof drive gear sub-assembly) is replaced.
* The sliding roof is removed and then reinstalled or replaced.

(a) Initialize the sliding roof system.

(1) Turn the ignition switch on (IG).

(2) Using the tilt up switch, tilt the roof fully upward, and then using the slide open switch, tilt the roof fully downward.

(3) Using the slide open switch, fully open the roof, and then using the tilt up switch, fully close it.

(b) Check AUTO tilt-up operation.

(1) Turn the ignition switch on (IG).

(2) If the roof glass is not fully closed, slide or tilt it so that it is fully closed.

(3) Press the sliding roof UP switch for 0.3 seconds or more. The roof glass should automatically tilt upward until it is fully open.

(c) Check the AUTO tilt-down operation.

(1) Turn the ignition switch on (IG).

(2) When the roof glass is fully tilted upward, press the sliding roof DOWN switch for 0.3 seconds or more. The roof glass should automatically tilt downward until it is fully closed.

(3) If the TILT UP or SLIDE OPEN switch is pressed while the roof glass is in motion, the roof glass will stop moving.

(4) If the roof glass cannot be fully tilted down using the AUTO operation (due to the jam protection function):

* Visually check if there is any foreign object between the sliding roof rail and the sliding roof glass.

* Check if the alignment of the sliding roof glass is within the specified range Programming and Relearning.

If no problems are found with the above checks, then perform the following operation to fully tilt down the roof glass forcedly and check if the AUTO operation returns to normal. (Forced operation)

If the roof glass does not operate normally even after performing the above procedures, then replace the sliding roof control assembly.

3. CHECK KEY-OFF SLIDING ROOF OPERATION

HINT
The sliding roof can be operated for approximately 43 seconds after the ignition switch is turned from on (IG) to off with all doors closed. However, if the driver side door is opened during the operation, the operation will be canceled.

(a) Check the sliding roof operation function after the ignition switch is turned form on (IG) to off.

(1) After turning the ignition switch from on (IG) to off, the sliding roof AUTO operation will be possible. However, opening the driver side door should disable AUTO operation.

(2) After turning the ignition switch from on (IG) to off, wait approximately 43 seconds and check that the AUTO operation will be prohibited.

(3) Turn the ignition switch from on (IG) to off with the driver side door open. AUTO operation will immediately stop functioning.

If operation is not as specified, the inspect each part following the problem symptoms table Programming and Relearning.

4. CHECK JAM PROTECTION FUNCTION

HINT
When sliding roof AUTO operation is being used, the jam protection function prevents objects from being caught between the vehicle body and the roof glass.

(a) Operative condition:

(1) AUTO CLOSE with ignition switch on (IG).

(2) AUTO CLOSE during sliding operation after the ignition switch is turned off.

(3) AUTO TILT-DOWN with ignition switch on (IG).

(4) AUTO TILT-DOWN during sliding operation after the ignition switch is turned off.

CAUTION:
* Do not use any part of your body such as your hand, or any object to check the jam protection function. Do not allow anything to become caught in the sliding roof by accident during this procedure.
* The jam protection function may not work against an object less than 5 mm (0.20 in.) in width.
(b) When the sliding roof AUTO operation is being used and an object is caught between the vehicle body and the roof glass, the roof glass should open a distance of 200 mm (7.87 in.) from the point of contact with the object, or open fully if 200 mm (7.87 in.) of opening distance is not available.

5. CHECK FAIL-SAFE FUNCTION

(a) If the sliding roof's jam protection function is triggered and, afterward, the sliding roof cannot be fully closed due to a malfunctioning sliding roof or a malfunctioning actuator, press and hold the TILT UP switch for at least 10 seconds. This will disable the jam protection function and the sliding roof can then be closed.

CAUTION:
Be careful with the closing sliding roof glass. The jam protection function does not operate this time.

HINT
* Before checking the fail-safe function, make sure that there is nothing that triggers the jam protection function.
* Pressing the TILT UP switch for 10 seconds will clear the memory of the sliding roof's fully closed position from the moon roof control ECU, which disables the jam protection function.

6. CHECK SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY

(a) Disconnect the sliding roof drive gear sub-assembly wire harness connector.

(b) Measure the resistance of the wire harness side connector.

Resistance:

HINT
*: Exceptions: During 43 second period after ignition switch on (IG) -> off (ACC) or until driver or front passenger door in opened after ignition switch on (IG) -> off (ACC).

If the value is not as specified, there way be a malfunction in the wire harness side.

(d) Reconnect the sliding roof drive gear sub-assembly wire harness connector.

(e) Initialize the sliding roof position Programming and Relearning.

(f) Check the voltage of the terminals of the wire harness side connector.

Voltage:

If the result is not as specified, replace the sliding roof drive gear sub-assembly (sliding roof control ECU).