Is the Check Engine Light on a Dodge Charger Defective?
In most cases, the Charger’s MIL is functioning correctly—it turns on because the PCM logged a fault. Typical reasons include misfires, EVAP leaks, O2 sensor issues or transmission errors. Only after diagnosing and repairing the cause should you clear the light.
- Find the code: Use an OBD-II scanner to read DTCs before resetting.
- Inspect basics: Gas cap, ignition coils, spark plugs, vacuum hoses, and throttle body.
- Flashing light: Indicates misfire—reduce throttle and fix immediately.
- After repair: Clear with a scan tool, then complete a drive cycle so readiness monitors return to “complete.”
If the light comes back after a proper repair, revisit the diagnostic flow or check for PCM updates. Otherwise, the MIL itself rarely fails—focus on the underlying fault.
For full workflows see Reset Check Engine Light Dodge Charger.