VOLVO
ECM-P003512 - Turbocharger/Supercharger Bypass Valve "A" Control Circuit High. General Electrical Failures. Circuit short to battery
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
6 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–)
Show models by year and engine (11)
- Volvo S60 (2011–)2011Engine B4164T, B4164T3 only
- Volvo S60 (2011–)2012–2015Engine B4164T, B4164T2, B4164T3 only
- Volvo S80 (2007–)2011, 2015Engine B4164T only
- Volvo S80 (2007–)2012–2014Engine B4164T, B4164T2 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 only
- Volvo V60 (2011–)2012–2015Engine B4164T, B4164T2, B4164T3 only
- Volvo V70 (2008–)2011Engine B4164T only
- Volvo V70 (2008–)2012–2015Engine B4164T, B4164T2 only
What does this fault code mean?
The code concerns the control signal to bypass valve A, which acts as the turbo's blow-off valve, being shorted to battery voltage. The engine control module uses the valve to reduce noise bursts when the accelerator is released quickly, and sets the code when the control signal is too high. It is checked with the ignition on.
Possible causes
- Signal wire shorted to supply voltage
- Faulty blow-off valve
What you can do
- 1Read the code, clear it and road test the car to see whether it returns
- 2Use a multimeter to check that the wire to the blow-off valve is not shorted to supply voltage
- 3Check the connector at the blow-off valve for loose or corroded parts
- 4If the fault remains after troubleshooting: have a workshop check the blow-off valve
Symptoms you may notice3
- The car lacks power
- Unusual noise while driving, not clear when it occurs
- Unusual noise when the accelerator is released
General guidance for car owners. Diagnosis on the car can point to a different cause.