Problem Symptoms Table
WARNING: This page is about a different car, the 2008 Lexus LS 600hL. 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 the problem symptom 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
Heated steering wheel system
PROBLEM SYMPTOMS CHART
| Symptom | Suspected Area | See |
|---|---|---|
| Steering wheel does not heat up when heated steering wheel switch is pressed | D-IG1-4 fuse | STEERING WHEEL DOES NOT HEAT UP WHEN HEATED STEERING WHEEL SWITCH IS PRESSED |
| D-IG1 relay | - | |
| Wire harness | STEERING WHEEL DOES NOT HEAT UP WHEN HEATED STEERING WHEEL SWITCH IS PRESSED | |
| Outer mirror switch (Heated steering wheel switch) | STEERING WHEEL DOES NOT HEAT UP WHEN HEATED STEERING WHEEL SWITCH IS PRESSED | |
| Heated steering wheel controller | - | |
| Steering wheel | STEERING WHEEL DOES NOT HEAT UP WHEN HEATED STEERING WHEEL SWITCH IS PRESSED |