Diagnostic Trouble Code (DTC) Information
WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.
Condition
When self-adjustment is activated the control module runs the motors to their limit positions in order to determine the limit position. A diagnostic trouble code (DTC) is stored if the control module detects that a damper motor has not reached its limit position:
- ECC-422 Driver's side temperature damper motor self-adjustment
- ECC-423 Passenger side temperature damper motor self-adjustment
- ECC-424 Air distribution damper motor self-adjustment
- ECC-425 Recirculation damper motor self-adjustment
depending on damper motor.
NOTE:
A new control module automatically carries out self-adjustment when vehicle speed exceeds 30 km/h for more than 15 seconds for the first time, unless self-adjustment has been activated with the Volvo on-board diagnostic (OBD) system. On old control module self-adjustment can only be carried out with the Volvo on-board diagnostic (OBD) system.
Substitute Value
None.
Possible Source
- Damper motor blocked.
- Damper motor not correctly installed.
Fault Symptom[s]
- The orange indicator LED in the REC and air conditioning (A/C) buttons flashes for approximately 20 seconds.