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.
ECC CEC System: Diagnosis: Description: Notes
The self-diagnostic system is used for diagnosing malfunctions of major sensors and actuators of the Electronic Concentrated Engine Control System (ECCS). There are 5 modes of diagnosis within the system. Before selecting any mode of self diagnosis, always perform the PRELIMINARY CHECKS first or diagnostic results and/or diagnostic time may be invalid.
Modes 1 and 2 are used for monitoring LED inspection lights which flash in accordance to the air/fuel mixture ratio. Mode 3 is used for obtaining trouble codes for component or circuit failures. Mode 4 is used to determine if malfunction(s) are present in the on/off controlled switches of the system. Mode 5 is used for monitoring the system and its components during actual driving conditions, usually to simulate an intermittent condition.
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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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