VOLVO
ECM-1885 - 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?
The engine control module (ECM) has found an internal fault in its own electronics. A single fault may have occurred at some point, for example at start-up, and then disappeared, while a fault that keeps returning means the engine control module needs replacing. In this case the engine does not start.
Possible causes
- Defective engine control module (ECM)
- Temporary interference in the control module, for example at start-up
What you can do
- 1Read and clear the fault code and start the engine to see whether it returns
- 2Check that the battery terminals and cables are clean and firmly fitted
- 3Check that the connectors at the engine control module are secure and free from corrosion
- 4If the fault returns after these checks, 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.