Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition




Diagnostic trouble code (DTC) ECC-431 is stored if the ECC control module detects that there is no signal from the blower fan switch.

Substitute value
The ECC control module ignores the faulty signal and compensates the shortfall with a substitute value.

Possible source
- Open-circuit in blower fan switch in ECC control module.
- Internal fault in ECC control module.

Fault symptom[s]
- Driver fault warning. The LEDs beside the A/C and REC switches flash for approximately 20 seconds.