What does fault code ECM-P00C200 mean?

Diagnostic fault code details for ECM-P00C200 (Volvo S60 (2011–), Volvo S80 (2007–), Volvo V40 (2013–)). Repair service at OBD Tuning.

VOLVO

ECM-P00C200 - Turbocharger/Supercharger Bypass Valve "B" Control Circuit High. 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 models

S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–)

Show models by year and engine (8)

What does this fault code mean?

The ECM reads the position sensor signal for the compressor bypass valve. The code is stored when the control signal is too high, and The main cause is a short circuit to supply voltage in the control wiring, which can switch off the compressor and reduce performance at low engine speeds.

Possible causes

Signal wire shorted to supply voltage

What you can do

1Read and note the code, clear it and road test to see whether it returns
2Check the connector at the bypass valve: it should be fully engaged and free from damage
3Look for chafed wiring that could be touching a live supply wire
4With a multimeter, check that the signal wire is not shorted to supply voltage
5If you have diagnostic equipment, read the bypass valve position in live data and check that it changes when the throttle is varied
6If the fault remains, have a workshop check the valve and its position sensor

Symptoms you may notice2

Engine lacks power, especially when pulling away from a standstill
Engine hesitates, surges or runs unevenly during acceleration, deceleration and steady speed

What the fault can affect2

The compressor is switched off
Performance drops at low engine speeds

General guidance for car owners. Diagnosis on the car can point to a different cause.