VOLVO
ECM-P132B21 - Turbocharger/Supercharger Boost Control A Performance. General Signal Failures. Signal too low
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
7 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–)
Show models by year and engine (20)
- Volvo S60 (2011–)2011Engine B4164T, B4164T3, B4204T6, B4204T7 only
- Volvo S60 (2011–)2012–2014Engine B4164T, B4164T2, B4164T3, B4204T7 only
- Volvo S60 (2011–)2015Engine B4164T, B4164T2, B4164T3 only
- Volvo S80 (2007–)2010Engine B4204T6 only
- Volvo S80 (2007–)2011Engine B4164T, B4204T6, B4204T7 only
- Volvo S80 (2007–)2012–2014Engine B4164T, B4164T2, B4204T6, B4204T7 only
- Volvo S80 (2007–)2015Engine B4164T only
- Volvo V40 (2013–)2013Engine B4164T, B4164T3 only
- Volvo V40 (2013–)2014–2015Engine B4164T, B4164T3, B4164T4 only
- Volvo V40 Cross Country (2013–)2013–2015Engine B4164T only
- Volvo V60 (2011–)2011Engine B4164T, B4164T3, B4204T6, B4204T7 only
- Volvo V60 (2011–)2012–2014Engine B4164T, B4164T2, B4164T3, B4204T7 only
- Volvo V60 (2011–)2015Engine B4164T, B4164T2, B4164T3 only
- Volvo V70 (2008–)2010Engine B4204T6 only
- Volvo V70 (2008–)2011Engine B4164T, B4204T6, B4204T7 only
- Volvo V70 (2008–)2012–2014Engine B4164T, B4164T2, B4204T7 only
- Volvo V70 (2008–)2015Engine B4164T, B4164T2 only
- Volvo XC60 (2009–)2010Engine B4204T6 only
- Volvo XC60 (2009–)2011–2012Engine B4204T6, B4204T7 only
- Volvo XC60 (2009–)2013–2015Engine B4204T7 only
What does this fault code mean?
The engine control module (ECM) compares the measured boost pressure with its target value. If the measured boost pressure is lower than the target, the module treats it as a fault and sets the code. The fault is checked when engine speed and load are above a certain level. The causes lie in the turbo control valve, the hoses, the wastegate pressure servo, the boost pressure sensor or the wastegate valve itself.
Possible causes
- Damaged turbocharger control valve
- Damaged outside temperature sensor
- Boost control hoses that are loose, blocked or damaged, both to the wastegate servo and to the charge air pipe
- Wastegate servo incorrectly adjusted or damaged
- Sticking wastegate valve
- Damaged boost pressure sensor (TMAP)
What you can do
- 1Check the hose between the wastegate pressure servo and the turbo control valve. It should be correctly fitted and undamaged and not blocked.
- 2Check the hose between the charge air pipe and the turbo control valve in the same way: correctly fitted, undamaged and not blocked.
- 3If you have a diagnostic tool, you can activate the turbo control valve and listen for it to click.
- 4Have a workshop check the setting and operation of the wastegate valve pressure servo.
- 5Have a workshop check that the wastegate valve is not sticking and that the boost pressure sensor works.
Symptoms you may notice1
- Poor performance, the car lacks power
General guidance for car owners. Diagnosis on the car can point to a different cause.