VOLVO
ECM-183F - Engine control module (ECM). Faulty signal
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?
An internal fault has been registered in the ECM. If the fault is intermittent, it occurred at a single moment, for example at start-up, and may not be present now. If the code returns, the engine control module is probably defective and needs replacing. The engine does not start.
Possible causes
- Defective engine control module (ECM)
- Interference when the engine control module starts up, if the fault is intermittent
What you can do
- 1Read and clear the fault code, then start the engine to see whether it returns
- 2Check that the battery terminals and cables are clean and firmly fitted so the voltage to the module is stable
- 3Check that the connectors at the engine control module are secure and free from corrosion
- 4If the fault returns, have a workshop replace the engine control module
Symptoms you may notice1
- The engine does not start
General guidance for car owners. Diagnosis on the car can point to a different cause.