Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition




The recirculation damper motor contains a potentiometer which indicates the position of the damper to the control module. Diagnostic trouble code (DTC) ECC-235 is stored if the control module detects that the signal from the potentiometer is too high.

Substitute value
The control module adopts a substitute value corresponding to 0% REC.

Possible source
- Open-circuit in the signal cable
- Short-circuit to supply voltage in the signal cable
- Open-circuit in the ground lead.
- Short-circuit to supply voltage in the potentiometer power supply.
- Contact resistance in terminals.
- Defective damper motor.

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