VOLVO
ECM-0114 - Mass air flow (MAF) sensor. Signal missing
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
4 modelsC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Show models by year and engine (10)
- Volvo C30 (2007–2013)2007Engine D4204T only
- Volvo C30 (2007–2013)2008–2010Engine D4204T only · Transmission MMT6, MPS6 only
- Volvo C70 (2006–2013)2008Engine D4204T only
- Volvo C70 (2006–2013)2009–2010Engine D4204T only · Transmission MMT6, MPS6 only
- Volvo S40 (2004–2013)2004–2006Engine D4204T, D4204T2 only
- Volvo S40 (2004–2013)2007Engine D4204T only
- Volvo S40 (2004–2013)2008–2010Engine D4204T only · Transmission MMT6, MPS6 only
- Volvo V50 (2004–2013)2004–2006Engine D4204T, D4204T2 only
- Volvo V50 (2004–2013)2007Engine D4204T only
- Volvo V50 (2004–2013)2008–2010Engine D4204T only · Transmission MMT6, MPS6 only
What does this fault code mean?
Although the code is titled signal missing, it concerns the signal from the built-in air temperature sensor in the mass air flow sensor, which is erratic or outside its range. The cause may be poor contact, moisture or water in the air filter or its housing, or a damaged sensor.
Possible causes
- Looseness, contact resistance or oxidation in the connections
- Water in the air filter or its housing
- Damaged intake air temperature sensor
What you can do
- 1With the ignition off, check the mass air flow sensor connector for looseness, contact resistance and oxidation
- 2Check the air filter and its housing for moisture and water
- 3If the fault returns when the connectors and filter are dry and sound, have a workshop replace the intake air temperature sensor
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.