VOLVO
ECM-B134200 - Control Module. General Failure Information. No sub type information
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
2 modelsS80 (2007–), V70 (2008–)
Show models by year and engine (2)
What does this fault code mean?
This is a general code that only tells you the engine control module has an internal fault, without saying which type of fault it is. The cause is a damaged engine control module. The fault can make the engine start poorly and the car go into limp-home mode.
Possible causes
- Damaged engine control module (ECM)
What you can do
- 1Read out the fault code, erase it and road test the car to see whether it comes back
- 2Check that the battery is well charged and that the fuses for the engine control module are intact
- 3Check that the connectors to the engine control module are firmly seated and not corroded
- 4If the fault remains after these checks, have a workshop check and replace the engine control module
Symptoms you may notice2
- The engine does not start, or starts only some of the time
- The car drives with poor performance and lacks power
What the fault can affect1
- The car goes into limp-home mode
General guidance for car owners. Diagnosis on the car can point to a different cause.