VOLVO
ECM-P011621 - Engine Coolant Temperature Sensor 1 Circuit Range/Performance. General Signal Failures. Signal too low
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:
10 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Show models by year and engine (31)
- Volvo S60 (2011–)2011–2012Engine B6304T4 only
- Volvo S60 (2011–)2013Engine B5204T8, B5204T9, B5254T12, B5254T14, B6304T4 only
- Volvo S60 (2011–)2014All engines except: B4164T, B4164T2, B4164T3, B4204T7, D4162T, D5204T3, D5204T7, D5244T11, D5244T15
- Volvo S60 (2011–)2015All engines except: B4164T, B4164T2, B4164T3, D4162T, D5204T3, D5204T7, D5244T11, D5244T15, D5244T23
- Volvo S80 (2007–)2010Engine B6304T2, B6324S only
- Volvo S80 (2007–)2011–2012Engine B6304T4, B6324S5 only
- Volvo S80 (2007–)2013Engine B5254T12, B5254T14, B6304T4, B6324S5 only
- Volvo S80 (2007–)2014Engine B4204T11, B4204T12, B4204T15, B5254T12, B5254T14, B6304T4, B6324S5, D4204T5 only
- Volvo S80 (2007–)2015All engines except: B4164T, B6324S4, D4162T, D5204T3, D5244T15
- Volvo V40 (2013–)2013–2014Engine B5204T8, B5204T9, B5254T12, B5254T14 only
- Volvo V40 (2013–)2015Engine B4204T11, B5204T8, B5204T9, D4204T14 only
- Volvo V40 Cross Country (2013–)2013–2014Engine B5204T8, B5204T9, B5254T12, B5254T14 only
- Volvo V40 Cross Country (2013–)2015All engines except: B4164T, D4162T, D5204T6
- Volvo V60 (2011–)2011–2012Engine B6304T4 only
- Volvo V60 (2011–)2013Engine B5204T8, B5204T9, B6304T4 only
- Volvo V60 (2011–)2014Engine B4204T11, B4204T12, B4204T15, B4204T9, B5204T8, B5204T9, B5254T12, B6304T4, D4204T5 only
- Volvo V60 (2011–)2015Engine B4204T11, B4204T12, B4204T15, B4204T9, B5204T9, B5254T12, B6304T3, B6304T4, B6304T5, D4204T5 only
- Volvo V60 Cross Country (2015–)2015
- Volvo V70 (2008–)2010Engine B6304T2, B6324S only
- Volvo V70 (2008–)2011–2012Engine B6304T4, B6324S5 only
- Volvo V70 (2008–)2013Engine B5204T9, B6304T4, B6324S5 only
- Volvo V70 (2008–)2014Engine B4204T11, B5204T9, B6304T4, B6324S5, D4204T5 only
- Volvo V70 (2008–)2015Engine B4204T11, B5204T9, B6304T4, D4204T5 only
- Volvo XC60 (2009–)2010Engine B6304T2, B6324S only
- Volvo XC60 (2009–)2011–2013Engine B6304T4, B6324S5 only
- Volvo XC60 (2009–)2014Engine B4204T10, B4204T11, B4204T12, B4204T15, B4204T9, B6304T4, B6324S5, D4204T5 only
- Volvo XC60 (2009–)2015All engines except: B4204T7, B6324S4, D5204T3, D5204T7, D5244T11, D5244T12, D5244T15, D5244T17, D5244T23
- Volvo XC70 (2008–)2010Engine B6304T2, B6324S only
- Volvo XC70 (2008–)2011–2013Engine B6304T4, B6324S5 only
- Volvo XC70 (2008–)2014–2015Engine B4204T11, B6304T4, B6324S5, D4204T5 only
- Volvo XC90 (2003–)2011–2014Engine B6324S5 only
What does this fault code mean?
The control module watches engine temperature with the coolant temperature sensor and compares it with the air temperature in the mass air flow sensor, the boost pressure sensor temperature, the outside temperature and the fuel temperature. If the coolant reading deviates too much from these values, the fault code is set.
Possible causes
- Contact resistance in the connector
- Damaged coolant temperature sensor
What you can do
- 1Read the diagnostic status and fault status for the code with the ignition on. Check whether the fault is active, then clear the code
- 2Check the connector at the coolant temperature sensor for contact resistance and oxidation
- 3If you have a diagnostic tool: read the coolant temperature in live data and check that it is reasonable. An unreasonable value means the fault is permanent
- 4Check the coolant level and the antifreeze protection. Take care, as the electric cooling fan can run even when the ignition is off
- 5If the connector is in order and the fault remains, have a workshop check or replace the sensor
Symptoms you may notice5
- The Check engine light comes on or behaves abnormally
- The engine is difficult to start
- The engine idles unevenly
- The engine stalls
- The electric cooling fan runs all the time
What the fault can affect3
- The control module uses the intake air temperature at start-up if it has no fault of its own
- The engine temperature is calculated using a model after start-up
- The electric cooling fan runs at a fixed, predefined speed
General guidance for car owners. Diagnosis on the car can point to a different cause.