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.
| Symptom | Suspected Area | Reference |
|---|---|---|
| Power source mode does not change | Engine switch indicator circuit | Refer to Engine Switch Indicator Circuit |
| Room oscillator does not recognize key | Refer to Room Oscillator does not Recognize Key | |
| Engine switch | Refer to INSPECTION | |
| key | - | |
| ID code box | - | |
| Main body ECU | Refer to TERMINALS OF ECU | |
| Wire harness or connector | Refer to Power Source Mode does not Change | |
| Engine does not start | Push-button start function DTCs | Refer to DIAGNOSTIC TROUBLE CODE TABLE |
| Power source mode does not change | Refer to Power Source Mode does not Change | |
| Engine immobilizer system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| Steering lock system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| SFI system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| Engine switch | Refer to INSPECTION | |
| Park/Neutral position switch | Refer to INSPECTION | |
| Stop light switch | Refer to PROCEDURE - Step 3 | |
| Main body ECU | Refer to TERMINALS OF ECU | |
| Wire harness or connector | Refer to Engine does not Start |
Use the Manual With the Right Hardware
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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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