VOLVO
ECM-P011900 - Engine Coolant Temperature Sensor 1 Circuit Intermittent/Erratic. 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?
The fault code is set when the signal from the coolant temperature sensor is faulty. Although the code is described as an intermittent or erratic function, it indicates a permanent fault that remains until the fault is repaired.
Possible causes
- Loose connections in the wiring
- Open circuit in the wire
- Damaged coolant temperature sensor
What you can do
- 1Read the diagnostic and fault status for the code with the ignition on. Clear the code and road test the vehicle to see whether it returns
- 2Check the connector at the coolant temperature sensor: it should be firmly seated and free from looseness, contact resistance and oxidation
- 3If you have a diagnostic tool: read the coolant temperature in live data. An unreasonable value means the fault is still present
- 4With the connector unplugged, use a multimeter to check that the wire to the sensor has no open circuit
- 5If the connector and wiring are in order and the fault remains, have a workshop check or replace the coolant temperature sensor
Symptoms you may notice1
- The Check engine light comes on or behaves abnormally
What the fault can affect1
- Exhaust gas recirculation (EGR) is not controlled
General guidance for car owners. Diagnosis on the car can point to a different cause.