VOLVO
ECM-P26DC00 - Engine Sound Control "A" Circuit Low. General Failure Information. No sub type information
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?
The engine control module (ECM) drives exhaust damper A with a pulse width modulated signal and checks that the signal is correct. The code is set when the signal to the damper is too low, and the cause may lie in the connections, the wiring or the damper itself.
Possible causes
- Contact resistance and oxidation in the connections
- The signal wire is shorted to ground
- The exhaust damper is damaged
- 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
- 2Check the connector to damper A for contact resistance, oxidation and looseness
- 3Use a multimeter to check that the signal wire to damper A has no contact with ground (the body)
- 4With a diagnostic tool, activate damper A and check in live data whether the damper value changes when it is controlled
- 5Have a workshop check damper A if the fault remains after the connector and wiring checks
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.