VOLVO
PAM-U040186 - Invalid Data Received From Engine control module. Bus Signal / Message Failures. Signal invalid
System
Parking Assistance Module (PAM)
Volvo models this fault code applies to
Applies to the following models:
9 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
What does this fault code mean?
The parking assistance module receives information from the engine control module (ECM) that is faulty or unreasonable. The code is stored when the information does not add up, and The fault lies in the engine control module, which is the one sending the information.
Possible causes
- The engine control module (ECM) sends faulty or unreasonable information
What you can do
- 1Check that the fuses are intact; the fuse list in the car shows which one applies
- 2Read and clear the code, then test drive the car with the engine running to see whether it comes back
- 3If you have a diagnostic tool, check whether the engine control module has stored codes, since the fault lies in the module that sends the information
- 4Have a workshop trace the engine control module and check that it sends correct values when the engine is running
Symptoms you may notice3
- Front or rear parking assistance does not work
- Yellow warning symbol and text message in the display
- Text message in the display
General guidance for car owners. Diagnosis on the car can point to a different cause.