VOLVO
ECM-P200835 - Intake Manifold Runner Control Circuit / Open (Bank 1). FM (Frequency Modulated) / PWM (Pulse Width Modulated) Failures. Signal high time above maximum
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 pulse width high above maximum, it applies when the swirl damper position differs from the calculated position. The engine control module (ECM) compares the damper position with a calculated value and sets the code when the position is incorrect. The cause may lie in the swirl damper, its linkage or its motor.
Possible causes
- Linkage or swirl damper sticking
- Damaged linkage between the swirl throttle motor and the swirl throttle duct
- Swirl damper motor sticking
- Damaged swirl throttle motor
What you can do
- 1If you have a diagnostic tool: command the swirl damper motor and check that it moves smoothly without sticking
- 2Check that the linkage between the motor and the swirl channel is intact and that nothing is sticking there
- 3Check that the swirl damper motor itself is not damaged or sticking
- 4If the fault remains, have a workshop check the swirl damper motor with diagnostic equipment
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.