VOLVO
ECM-P201449 - Intake Manifold Runner Position Sensor/Switch Circuit (Bank 1). System Internal Failures. Internal electronic failure
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
5 modelsS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Show models by year and engine (6)
- Volvo S80 (2007–)2007–2009Engine D5244T4, D5244T5 only
- Volvo V70 (2008–)2008–2009Engine D5244T4, D5244T5 only
- Volvo XC60 (2009–)2009All engines except: B6304T2
- Volvo XC70 (2008–)2008All engines except: B6324S
- Volvo XC70 (2008–)2009Engine D5244T4, D5244T5 only
- Volvo XC90 (2003–)2013–2014Engine D5244T18, D5244T5 only
What does this fault code mean?
The code concerns the electrical signal to the swirl damper motor, which the engine control module (ECM) checks. It is set when the signal is incorrect, which can be caused by an open circuit or by the signal wire being in contact with voltage.
Possible causes
- Trouble code ECM-P201404 can cause this code
- Power supply short-circuited to battery voltage
- Open circuit or short to voltage in the signal wire
- Damaged swirl throttle motor
- Linkage or swirl damper sticking
- Trouble code ECM-P20144B can cause this code
What you can do
- 1Check that the fuses are intact and that the connectors are secure
- 2If you have a diagnostic tool: read the status of the code with the ignition on, then do a test drive to see whether it returns
- 3Check the signal wire for chafing, pinch damage and loose connectors
- 4If the fault remains, have a workshop check the swirl damper motor and its electrical supply
Symptoms you may notice1
- No noticeable symptoms for the driver
General guidance for car owners. Diagnosis on the car can point to a different cause.