VOLVO
ECM-P26DE04 - Engine Sound Control "A" Circuit Performance. General Failure Information. System Internal Failures
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
6 modelsS60 (2011–), S80 (2007–), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Show models by year and engine (8)
- Volvo S60 (2011–)2011–2014Engine B6304T4 only
- Volvo S60 (2011–)2015Engine B6304T4, B6304T5 only
- Volvo S80 (2007–)2011–2015Engine B6304T4 only
- Volvo V60 (2011–)2011–2014Engine B6304T4 only
- Volvo V60 (2011–)2015Engine B6304T4, B6304T5 only
- Volvo V70 (2008–)2011–2015Engine B6304T4 only
- Volvo XC60 (2009–)2011–2015Engine B6304T4 only
- Volvo XC70 (2008–)2011–2015Engine B6304T4 only
What does this fault code mean?
Even though the code is named internal system faults, it concerns the information from exhaust damper A, which the engine control module (ECM) judges to be incorrect or unreasonable. The cause may be a damaged damper or a damper that has stuck.
Possible causes
- The exhaust damper is damaged
- The exhaust damper has stuck
- Exhaust damper A is on the right-hand side as seen in the direction of travel
What you can do
- 1Check that the fuses are intact; their location is shown in the owner's manual
- 2On a test drive, listen for unusual exhaust noise while the throttle is varied
- 3Have a workshop check damper A, since a wrong or unreasonable signal from it cannot be judged with a simple test
- 4With a diagnostic tool, read the damper value in live data at idle and see whether it stays still
Symptoms you may notice3
- Unusual noise while driving, sometimes or all the time
- Unusual noise when the engine is switched off
- Unusual noise during acceleration
General guidance for car owners. Diagnosis on the car can point to a different cause.