VOLVO
ECM-0220 - Throttle unit, potentiometer 2. Faulty
System
Engine Control Module (ECM)
Volvo models this fault code applies to
This fault code has different meanings depending on model, model year or engine. Select the meaning that applies to your car.
Applies to the following models:
3 modelsC30 (2007–2013), S40 (2004–2013), V50 (2004–2013)
What does this fault code mean?
The engine control module has found a fault related to potentiometer 2 in the throttle unit but cannot determine what kind of fault it is, so it stores this general code. The code is remedied through the more specific codes in the control module.
Possible causes
- A fault in the throttle system that the control module cannot link to a single fault code
What you can do
- 1Read all fault codes in the engine control module and note which others are present alongside this one
- 2Fix the more specific code first, since it describes what is actually wrong
- 3Clear the codes once the repair is complete and road test to see which ones return
- 4If only this code remains, have a workshop with diagnostic equipment trace which underlying code lies behind it
Symptoms you may notice1
- No noticeable symptoms for the driver
General guidance for car owners. Diagnosis on the car can point to a different cause.