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.
Diagnostic System
The ECU is equipped with a self-diagnostic system which detects system failures or abnormalities. When a malfunction occurs, the ECU will store a code in its memory. ECU will also turn on a "CHECK ENGINE" light located on the instrument panel.
As a bulb and system check, the "CHECK ENGINE" light will glow when ignition switch is on and engine is not running. When engine is started, the light should go out after 4 seconds. If not, a malfunction has been detected in the I-TEC system.
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.