Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition




Diagnostic trouble code (DTC) ECC-420 is stored if there is a fault in the internal control module memory circuits. Diagnostic trouble code (DTC) ECC-421 is stored if there is a fault in the ROM memory circuits.

Substitute value
None.

Possible source
- Defective control module.

Fault symptom[s]
- The orange indicator LED in the REC and air conditioning (A/C) buttons flashes for approximately 20 seconds.