VOLVO
ECM-P02CA00 - Turbocharger/Supercharger "B" Overboost Condition. General Failure Information. No sub type information
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
8 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Show models by year and engine (8)
- Volvo S60 (2011–)2014–2015Engine B4204T10, B4204T11, B4204T12, B4204T15, B4204T9, D4204T5 only
- Volvo S80 (2007–)2014–2015Engine B4204T11, B4204T12, B4204T15, D4204T5 only
- Volvo V40 (2013–)2015Engine B4204T11, D4204T14 only
- Volvo V40 Cross Country (2013–)2015Engine B4204T11, D4204T14 only
- Volvo V60 (2011–)2014–2015Engine B4204T11, B4204T12, B4204T15, B4204T9, D4204T5 only
- Volvo V70 (2008–)2014–2015Engine B4204T11, D4204T5 only
- Volvo XC60 (2009–)2014–2015Engine B4204T10, B4204T11, B4204T12, B4204T15, B4204T9, D4204T5 only
- Volvo XC70 (2008–)2014–2015Engine B4204T11, D4204T5 only
What does this fault code mean?
The code concerns turbo unit B, where the boost pressure is above the permitted limit. The two turbo units share the boost control: the smaller one works at lower engine speeds and the larger one at higher speeds. The code is stored when the engine control module (ECM) detects that the compressor pressure is too high. It is a general code.
Possible causes
- Clogged hoses to the turbo unit or the turbo control valve
- Compressor bypass valve sticking or stuck in the closed position
- Damaged bypass turbo control valve
- Wastegate turbo control valve sticking
- Damaged pressure actuator for the wastegate valve
What you can do
- 1Read and note the fault code, clear it and test drive to see whether it returns
- 2Check that the hoses to the turbo unit and the turbo control valve are not clogged or damaged
- 3If you have a diagnostic tool: activate the bypass turbo control valve and see whether it clicks when activated
- 4Check that the wastegate valve and its pressure actuator are not sticking and are correctly set
- 5Check that the compressor bypass valve has not stuck in the closed position
- 6Have a workshop with diagnostic equipment check turbo unit B and its valves
Symptoms you may notice4
- The car lacks power, especially when pulling away from standstill
- The car lacks power
- The car hesitates or surges during acceleration, deceleration and at steady speed
- A message in the display together with a warning symbol
General guidance for car owners. Diagnosis on the car can point to a different cause.