VOLVO
ECM-1886 - 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 has registered an internal fault and sets the code itself. The fault shows up as an engine that does not start. If the code comes back after it has been cleared, the module is probably defective and needs replacing.
Possible causes
- Defective engine control module (ECM)
What you can do
- 1Read and clear the fault code and start the engine to see whether it returns
- 2Check that the battery terminals are clean and tight so the module receives a stable voltage
- 3Check that the connectors at the engine control module are secure and clean
- 4If the code 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.