VOLVO
ECM-P011602 - Engine Coolant Temperature Sensor 1 Circuit Range/Performance. General Failure Information. General signal failure
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
5 modelsS60 (2011–), S80 (2007–), V60 (2011–), V70 (2008–), XC60 (2009–)
Show models by year and engine (12)
- Volvo S60 (2011–)2011Engine B4204T6, B4204T7 only
- Volvo S60 (2011–)2012–2014Engine B4204T7 only
- Volvo S80 (2007–)2010Engine B4204T6 only
- Volvo S80 (2007–)2011–2014Engine B4204T6, B4204T7 only
- Volvo V60 (2011–)2011Engine B4204T6, B4204T7 only
- Volvo V60 (2011–)2012–2014Engine B4204T7 only
- Volvo V70 (2008–)2010Engine B4204T6 only
- Volvo V70 (2008–)2011Engine B4204T6, B4204T7 only
- Volvo V70 (2008–)2012–2014Engine B4204T7 only
- Volvo XC60 (2009–)2010Engine B4204T6 only
- Volvo XC60 (2009–)2011–2012Engine B4204T6, B4204T7 only
- Volvo XC60 (2009–)2013–2015Engine B4204T7 only
What does this fault code mean?
The engine control module (ECM) checks the signal from the engine temperature sensor. If the signal stays above a certain limit without falling within a set time, the control module treats it as a fault and the code is set. It then compares the signal with an engine temperature it calculates from speed and load, among other things.
Possible causes
- Damaged engine coolant temperature sensor
- Contact resistance or oxidation in the connections
- Insufficient coolant in the cooling system
- Damaged thermostat
- Clogged radiator
What you can do
- 1With the engine running, read the engine temperature sensor signal in live data and see whether the value is reasonable. An unreasonable value means the fault is still present
- 2Check that the fuses are intact
- 3Check the connector at the engine temperature sensor for contact resistance and oxidation
- 4Check the coolant level in the cooling system. A low level can affect the sensor signal
- 5Take care working in the engine bay, as the electric cooling fan can run even when the ignition is off
- 6If the fault remains, have a workshop check the thermostat, the radiator and the sensor
Symptoms you may notice1
- The engine is difficult to start and cranks slowly on starting
What the fault can affect1
- The engine coolant temperature is calculated using a model
General guidance for car owners. Diagnosis on the car can point to a different cause.