VOLVO
ECM-P20144B - Intake Manifold Runner Position Sensor/Switch Circuit (Bank 1). System Internal Failures. Over temperature
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?
Although the code is named over temperature, it applies to the signal to the swirl damper motor. The engine control module (ECM) reads that signal and sets the code when it is wrong. The cause may be a damaged swirl damper motor or sticking linkage.
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-P201449 can cause this code
What you can do
- 1Check that the fuses are intact
- 2Check that the connectors at the swirl damper motor are clean and secure
- 3If you have a diagnostic tool: read the status of the code with the ignition on to see whether it is active
- 4If the fault remains, have a workshop check the swirl damper motor and its linkage
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.