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.
Ignition Switch Circuit Fuse
Turn ignition off. Ensure RAD/CIG, CIG or ECU/IG fuse is okay. If RAD/CIG, CIG or ECU/IG fuse is okay, go to next step. Replace fuse if needed. If fuse fails again, check for short in wire harness between fuse and ATS ECU terminal B7 (with power door locks, Gray wire) or No. 6 (without power door locks, Gray wire). Repair short in harness or connectors as necessary.
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Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.