VOLVO
ECM-P231000 - Ignition Coil D Primary 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:
3 modelsS60 (2011–), S80 (2007–), V70 (2008–)
Show models by year and engine (9)
- Volvo S60 (2011–)2011–2012Engine B5254T5 only
- Volvo S80 (2007–)2007–2008Engine B5254T6 only
- Volvo S80 (2007–)2009Engine B5254T6, B5254T8 only
- Volvo S80 (2007–)2010–2011Engine B5254T10, B5254T11, B5254T8 only
- Volvo S80 (2007–)2012Engine B5254T10 only
- Volvo V70 (2008–)2008Engine B5254T6 only
- Volvo V70 (2008–)2009Engine B5254T6, B5254T8 only
- Volvo V70 (2008–)2010–2011Engine B5254T10, B5254T11 only
- Volvo V70 (2008–)2012Engine B5254T10 only
What does this fault code mean?
The signal to ignition coil 4 is too high according to the engine control module (ECM), so the code is set. This means the signal wire is short-circuited to supply voltage. The code gives no more specific fault type and applies only to ignition coil 4.
Possible causes
- The signal wire to ignition coil 4 is short-circuited to supply voltage
- The ignition coil is damaged
What you can do
- 1Check that the relevant fuses are intact; their locations are shown in the instruction manual
- 2Read and note the code, clear it and run the engine for a while. If it returns, the fault is still present
- 3Follow the cable to ignition coil 4 and look for places where the insulation is chafed or where it may have contact with supply voltage
- 4Use a multimeter to check that the signal wire to ignition coil 4 has no contact with supply voltage
- 5Check the connector at ignition coil 4 for loose contacts and corrosion
- 6If the fault returns, have a workshop with diagnostic equipment check the ignition coil and the wiring
Symptoms you may notice2
- The malfunction indicator lamp (MIL) lights up
- Not all cylinders are firing properly
General guidance for car owners. Diagnosis on the car can point to a different cause.