VOLVO
ECM-P011800 - Engine Coolant Temperature Sensor 1 Circuit High. 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:
12 modelsC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V50 (2004–2013), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Show models by year and engine (41)
- Volvo C30 (2007–2013)2011–2013Engine D4162T, D5204T, D5204T5 only
- Volvo C70 (2006–2013)2011Engine D5204T, D5204T5 only
- Volvo C70 (2006–2013)2012–2013All engines except: B5254T7
- Volvo S40 (2004–2013)2011–2012Engine D4162T, D5204T, D5204T5 only
- Volvo S60 (2011–)2011Engine D4162T, D5204T2, D5244T10 only
- Volvo S60 (2011–)2012Engine D4162T, D5204T3, D5244T11, D5244T15 only
- Volvo S60 (2011–)2013Engine D4162T, D5204T3, D5204T7, D5244T11, D5244T15 only
- Volvo S60 (2011–)2014All engines except: B4164T, B4164T2, B4164T3, B4204T7, B5204T8, B5204T9, B5254T12, B5254T14, B6304T4
- Volvo S60 (2011–)2015All engines except: B4164T, B4164T2, B4164T3, B5204T8, B5204T9, B5254T12, B5254T14, B6304T3, B6304T4, B6304T5
- Volvo S80 (2007–)2009Engine D5244T10 only
- Volvo S80 (2007–)2010Engine D5244T10, D5244T14, D5244T19 only
- Volvo S80 (2007–)2011Engine D5204T2, D5244T10 only
- Volvo S80 (2007–)2012Engine D4162T, D5204T3, D5244T11, D5244T15 only
- Volvo S80 (2007–)2013Engine D4162T, D5204T3, D5204T7, D5244T11, D5244T15 only
- Volvo S80 (2007–)2014Engine B4204T11, B4204T12, B4204T15, D4162T, D4204T5, D5204T3, D5204T7, D5244T11, D5244T15 only
- Volvo S80 (2007–)2015All engines except: B4164T, B6304T4, B6324S4, B6324S5
- Volvo V40 (2013–)2013–2014Engine D4162T, D5204T4, D5204T6 only
- Volvo V40 (2013–)2015Engine B4204T11, D4162T, D4204T14, D5204T6 only
- Volvo V40 Cross Country (2013–)2013–2014Engine D4162T, D5204T4, D5204T6 only
- Volvo V40 Cross Country (2013–)2015Engine B4204T11, D4162T, D4204T14, D5204T6 only
- Volvo V50 (2004–2013)2011–2012Engine D4162T, D5204T, D5204T5 only
- Volvo V60 (2011–)2011Engine D4162T, D5204T2, D5244T10 only
- Volvo V60 (2011–)2012Engine D4162T, D5204T3, D5244T11, D5244T15 only
- Volvo V60 (2011–)2013Engine D4162T, D5204T3, D5204T7, D5244T11, D5244T15, D5244T17, D82PHEV only
- Volvo V60 (2011–)2014All engines except: B4164T, B4164T2, B4164T3, B4204T7, B5204T8, B5204T9, B5254T12, B6304T4
- Volvo V60 (2011–)2015All engines except: B4164T, B4164T2, B4164T3, B5204T9, B5254T12, B6304T3, B6304T4, B6304T5
- Volvo V70 (2008–)2009Engine D5244T10 only
- Volvo V70 (2008–)2010Engine D5244T10, D5244T14, D5244T19 only
- Volvo V70 (2008–)2011Engine D5204T2, D5244T10 only
- Volvo V70 (2008–)2012Engine D4162T, D5204T3, D5244T11, D5244T15 only
- Volvo V70 (2008–)2013Engine D4162T, D5204T3, D5204T7, D5244T11, D5244T15, D5244T17 only
- Volvo V70 (2008–)2014All engines except: B4164T, B4164T2, B4204T7, B5204T9, B6304T4, B6324S5
- Volvo V70 (2008–)2015All engines except: B4164T, B4164T2, B5204T9, B6304T4
- Volvo XC60 (2009–)2010Engine D5244T10, D5244T14, D5244T16 only
- Volvo XC60 (2009–)2011Engine D5204T2, D5244T10, D5244T16 only
- Volvo XC60 (2009–)2012Engine D5204T3, D5244T11, D5244T15, D5244T17 only
- Volvo XC60 (2009–)2013–2014All engines except: B4204T7, B6304T4, B6324S4, B6324S5
- Volvo XC60 (2009–)2015All engines except: B4204T7, B5204T9, B5254T12, B5254T14, B6304T4, B6324S4, B6324S5
- Volvo XC70 (2008–)2010Engine D5244T10, D5244T14, D5244T16 only
- Volvo XC70 (2008–)2011Engine D5204T2, D5244T10, D5244T16 only
- Volvo XC70 (2008–)2012–2015All engines except: B6304T4, B6324S4, B6324S5
What does this fault code mean?
The engine control module (ECM) checks the function of the coolant temperature sensor. The fault code is set when the control module detects a temperature that is too high, or when the sensor voltage is too high. The sensor sits in the engine block and measures the coolant temperature.
Possible causes
- Open circuit in the signal cable
- Signal cable shorted to supply voltage
- Contact resistance or oxidation in the connections
- Damaged coolant temperature sensor
What you can do
- 1Read the diagnostic status and fault status for the code with the ignition on. Check that the fault is not active when the test is finished
- 2If you have a diagnostic tool: read the coolant temperature in live data and check that it is reasonable. An unreasonable value indicates a permanent fault
- 3Check the connector at the coolant temperature sensor for contact resistance and oxidation
- 4With the connector unplugged, use a multimeter to check that the signal cable has no open circuit and is not short-circuited to positive
- 5If no fault is found, the fault may have been intermittent. If the fault recurs, have a workshop trace it as a permanent fault
Symptoms you may notice5
- A text message is shown in the display
- The electric cooling fan runs all the time
- The engine does not start
- Automatic engine start/stop does not work at idle
- The Check engine light comes on or behaves abnormally
What the fault can affect3
- During warm-up a ramped value for the coolant temperature is used, which rises steadily
- Exhaust gas recirculation (EGR) is not controlled
- The control module falls back on a default value or a model
General guidance for car owners. Diagnosis on the car can point to a different cause.