What does fault code ECM-P111900 mean?

Diagnostic fault code details for ECM-P111900 (Volvo S60 (2011–), Volvo S80 (2007–), Volvo V40 (2013–)). Repair service at OBD Tuning.

VOLVO

ECM-P111900 - Manifold Air Temperature Circuit High. General Failure Information. No sub type information

System

Engine Control Module (ECM)

Volvo models this fault code applies to

Applies to the following models:

8 models

S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–)

Show models by year and engine (8)

What does this fault code mean?

The engine control module (ECM) monitors the intake air temperature sensor after the EGR supply. The code is stored when the incorrect value lasts longer than a set time. It does not specify a more detailed fault type, so the cause has to be found through fault-tracing.

Possible causes

Intake air temperature sensor is damaged
Short circuit to supply voltage in the signal wiring
The engine control module itself is faulty

What you can do

1Read and note the code, clear it and road test to see whether it returns
2Check that the sensor connector is secure and free from moisture and corrosion
3Use a multimeter to check that the signal wire has no contact with battery positive (voltage)
4If you have a diagnostic tool: read intake air temperature in live data and check that it follows the ambient temperature when the car has been standing still
5If the wiring and connector are fine: have a workshop check the sensor and the engine control module

Symptoms you may notice1

Malfunction indicator (check engine) lamp comes on or behaves abnormally

What the fault can affect1

The control module calculates a value instead of using the sensor signal

General guidance for car owners. Diagnosis on the car can point to a different cause.