VOLVO
ECM-1124 - Atmospheric pressure. Signal faulty. Intermittent fault
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
2 modelsS40 (1996–2004), V40 (1996–2004)
Show models by year and engine (2)
What does this fault code mean?
The engine control module has at an earlier point registered an internal fault in its own atmospheric pressure sensor, but now finds no fault remaining. The sensor sits inside the module, so the fault concerns the module itself.
Possible causes
- Temporary internal fault in the engine control module
- Defective engine control module
What you can do
- 1Clear the code and check that it does not come back
- 2Make sure the battery is in good condition, since low voltage can cause false internal faults
- 3If the fault returns, have a workshop check or replace the engine control module
Symptoms you may notice1
- The malfunction indicator lamp comes on
General guidance for car owners. Diagnosis on the car can point to a different cause.