Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition




Diagnostic trouble code (DTC) ECC-121 is stored if the control module detects that the signal from the outside temperature sensor is below 0.3 V.

Substitute value
The control module adopts a substitute value corresponding to approximately 0°C.

Possible source
- Short-circuit to ground in signal cable.
- Defective temperature sensor.

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