VOLVO
ECM-P009900 - Intake Air Temperature Sensor 2 Circuit Intermittent/Erratic (Bank 1). General Failure Information. No sub type information
System
Engine Control Module (ECM)
Volvo models this fault code applies to
This fault code has different meanings depending on model, model year or engine. Select the meaning that applies to your car.
Applies to the following models:
9 modelsC30 (2007–2013), S40 (2004–2013), S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V50 (2004–2013), V60 (2011–), V70 (2008–)
Show models by year and engine (9)
- Volvo C30 (2007–2013)2011–2013Engine D4162T only
- Volvo S40 (2004–2013)2011–2012Engine D4162T only
- Volvo S60 (2011–)2011–2015Engine D4162T only
- Volvo S80 (2007–)2012–2015Engine D4162T only
- Volvo V40 (2013–)2013–2015Engine D4162T only
- Volvo V40 Cross Country (2013–)2013–2015Engine D4162T only
- Volvo V50 (2004–2013)2011–2012Engine D4162T only
- Volvo V60 (2011–)2011–2015Engine D4162T only
- Volvo V70 (2008–)2012–2015Engine D4162T only
What does this fault code mean?
This fault code concerns an irregular or intermittent signal from the intake air temperature sensor. The temperature is measured in the boost pressure sensor, which sits on the intake pipe after the throttle unit. The fault can affect exhaust gas recirculation (EGR) and the burning of soot particles.
Possible causes
- Contact resistance or oxidation in the connector
- Open or short circuit in the wires
- Damaged boost pressure sensor (TMAP)
What you can do
- 1Check the boost pressure sensor connector for oxidation and contact resistance
- 2Look for chafed or pinched wiring from the boost pressure sensor
- 3If you have a diagnostic tool: read the intake air temperature in live data with the engine running and see whether the value jumps
- 4Have a workshop check the boost pressure sensor if the fault returns
Symptoms you may notice1
- Check engine lamp (MIL) lights up
What the fault can affect2
- Exhaust gas recirculation (EGR) is not controlled
- Soot particles are not burned off
General guidance for car owners. Diagnosis on the car can point to a different cause.