How to Read Dodge Charger Check Engine Light Codes
When the MIL illuminates on a Charger, the PCM has stored diagnostic trouble codes (DTCs). To decipher the warning, connect an OBD-II scanner, retrieve the code(s), and follow the diagnostic flow for the affected subsystem.
- Scan procedure: Plug the scanner into the OBD-II port, turn the ignition to “ON,” read codes, and save freeze-frame data.
- Code interpretation: Use reputable databases or factory service information to identify subsystem and likely causes.
- Repair: Perform targeted diagnostics (e.g., swap coils for misfires, smoke-test EVAP, check fuel trims).
- Reset: After the fix, clear the MIL with the scanner and complete a drive cycle so readiness monitors reset to “complete.”
Need step-by-step diagnostics? Review the Challenger/Charger CEL guide.