VOLVO
ECM-P26DD00 - Engine Sound Control "A" 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:
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 code concerns the signal to exhaust damper A, which the engine control module (ECM) drives with a pulse width modulated signal. It is set when the signal is too high, and the cause may be poor contact, a signal wire that has touched voltage, or a damaged damper.
Possible causes
- Contact resistance and oxidation in the connections
- The signal wire is shorted to voltage
- 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 that the connector to damper A is clean and secure, with no oxidation or looseness
- 3Use a multimeter to check that the signal wire to damper A has no contact with positive supply
- 4With a diagnostic tool you can activate damper A and see in live data whether the damper value follows the control
- 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.