Inspection Procedure

WARNING: This page is about a different car, the 2003 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

In case of using the hand-held tester, start the inspection from step 1 and in case of not using the hand-held tester, start from step 2.

Perform active test.
PREPARATION:

Connect the hand-held tester to DLC3.

CHECK:
1. Enter into ACTIVE TEST function of hand-held tester.
2. Check that "Slide roof motor" operates as the hand-held tester directs.
NOTE: Caution is necessary not to be caught in the roof glass because the jam protection system does not operate during the ACTIVE TEST.

HINT:

With one ACTIVE direction, the sliding roof can be slid and tilted continuously.

OK:

The slide roof operates normally.
1. OK : Proceed to next circuit inspection shown in problem symptoms table (See PROBLEM SYMPTOMS TABLE ).
2. NG : Go to next step
Check SUN ROOF fuse.
CHECK:

Check continuity of SUN ROOF fuse.

OK:
1. Continuity
1. NG : Replace the failure fuse.
2. OK : GO TO NEXT STEP
Check harness and connector between terminal E of sliding roof gear assembly with ECU and body ground (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).
1. NG : Repair or replace wire harness or connector.
2. OK : GO TO NEXT STEP
Check voltage between terminals +B and E of sliding roof gear assembly with ECU connector.
PREPARATION:

Turn the ignition switch OFF.

CHECK:

Measure voltage between terminal +B and GND of the sliding gear assembly with ECU with connector being connected.

OK:
1. Voltage: 10-14 V
Fig 1: Identifying Sliding Gear Assembly Terminals +B & E
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1. NG : Repair or replace wire harness or connector.
2. OK : Proceed to next circuit inspection show on problem symptom table (See PROBLEM SYMPTOMS TABLE ).