Tech Tips
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 system 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.
| Symptom | Suspected Area | See page |
|---|---|---|
| Only manual switch does not operate | Tilt and telescopic manual switch circuit | |
| Headlight dimmer switch assembly (combination switch ECU)*1 | ||
| Windshield wiper switch assembly (combination switch ECU)*2 | ||
| Multiplex tilt and telescopic ECU (for LHD) | ||
| Multiplex tilt and telescopic ECU (for RHD) | ||
| Only auto away/return function does not operate | Check customize status of auto away/return function using the intelligent tester | |
| IG power source circuit | ||
| Multiplex tilt and telescopic ECU (for LHD) | ||
| Multiplex tilt and telescopic ECU (for RHD) | ||
| Only auto away function does not operate | Entry and start system (for start function) | |
| Multiplex tilt and telescopic ECU (for LHD) | ||
| Multiplex tilt and telescopic ECU (for RHD) | ||
| Only auto return function does not operate | Entry and start system (for start function) | |
| Multiplex tilt and telescopic ECU (for LHD) | ||
| Multiplex tilt and telescopic ECU (for RHD) | ||
| Only memory function does not operate | Front power seat control system | |
| Front power seat switch | ||
| Multiplex tilt and telescopic ECU (for LHD) | ||
| Multiplex tilt and telescopic ECU (for RHD) | ||
| Wireless-linked return function does not operate | Front power seat control system | |
| Power mirror control system | ||
| Multiplex tilt and telescopic ECU (for LHD) | ||
| Multiplex tilt and telescopic ECU (for RHD) |