Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Problem Symptoms Table
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
| Symptom | Suspected Area | Refer To |
|---|---|---|
| Steering wheel do not heat up when heated steering wheel switch is pressed | D-IG1-4 fuse | VARIABLE GEAR RATIO STEERING SYSTEM |
| D-IG1 relay | - | |
| Wire harness | VARIABLE GEAR RATIO STEERING SYSTEM | |
| 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 | VARIABLE GEAR RATIO STEERING SYSTEM |
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.