Problem Symptoms Table
WARNING: This page is about a different car, the 2012 Lexus LS 460. However, it is still accessible from the selected car via links, so may be relevant.
HINT:
- Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
SLIDING ROOF SYSTEM
| Symptom | Suspected Area | Reference |
|---|---|---|
| Sliding function and tilt function do not operate | Sliding Roof ECU Power Source Circuit | Refer to Sliding Roof ECU Power Source Circuit |
| Either sliding function or tilt function does not operate | Sliding Roof Control Switch Circuit | Refer to Sliding Roof Control Switch Circuit |
| Key-off operation does not operate | Front door courtesy light switch assembly LH | Refer to INSPECTION |
| Main body ECU (driver side junction block) | - | |
| Sliding roof drive gear sub-assembly (sliding roof ECU) | Refer to TERMINALS OF ECU | |
| Transmitter-linked operation does not operate | Wireless door lock control system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING |
| Sliding roof drive gear sub-assembly (sliding roof ECU) | Refer to TERMINALS OF ECU | |
| Key-linked operation does not operate | Power door lock control system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING |
| Sliding roof drive gear sub-assembly (sliding roof ECU) | Refer to TERMINALS OF ECU | |
| Entry lock switch-linked operation does not operate | Smart access system with push-button start (for door lock) | Refer to HOW TO PROCEED WITH TROUBLESHOOTING |
| Sliding roof drive gear sub-assembly (sliding roof ECU) | Refer to TERMINALS OF ECU |