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
Diagnostic trouble code (DTC) ECC-311 is stored if the control module detects that the voltage across both cables to the damper motor is below approximately 0.5 V when the motor is activated or exceeds approximately 4 V when the motor is not activated.
Substitute Value
No activation of the motor as long as the fault persists.
Possible Source
- Short-circuit to ground or supply voltage in the control signal cable.
- Open-circuit in the control signal cable.
- 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.
- The passenger compartment temperature does not correspond to the set value.