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 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.
| Symptom | Suspected Area | Refer To |
|---|---|---|
| Power Source Mode does not Change. | AM2 Fuse | Refer to Power Source Mode does not Change |
| Engine Switch | - | |
| Main Body ECU RH (Cowl Side Junction Block RH) | - | |
| Main Body ECU LH (Cowl Side Junction Block LH) | - | |
| IG2 Relay | - | |
| Wire Harness or Connector | - | |
| Power Source Control ECU | - | |
| Engine does not Start. | Power Source Control ECU | Refer to Engine does not Start |
| Certification ECU (Smart Key ECU Assembly) | - | |
| Shift Lock Control ECU | - | |
| ID Code Box (Immobiliser Code ECU) | - | |
| Stop Light Switch | - | |
| Electrical Steering Lock Function | - | |
| SFI System | - | |
| Engine Immobiliser System | - | |
| Wire Harness or Connector | - | |
| Engine Switch Indicator Light does not Come On. | Engine switch indicator light circuit | Refer to Engine Switch Indicator Circuit |
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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.
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