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 ECM of the ECC system is equipped with a self-diagnostic system which detects system failures or abnormalities. When a malfunction occurs, ECM will light the "ECS" lamp located on the instrument panel. When a malfunction is detected and lamp is turned on, a corresponding trouble code is stored in ECM memory.
As a bulb and system check, the "ECS" lamp will glow when ignition switch is turned on and engine is not running. When engine is started, the lamp should go out. If not, a malfunction has been detected in ECC 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.