VOLVO
IAM-B1D7812 - Auxillary input. General Electrical Failures. Circuit short to battery
System
Integrated Audio Module (IAM)
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 integrated audio module (IAM) has found that the DC level on the wire coming from the AUX panel is too high. It shows up as the AUX panel working poorly or not at all.
Possible causes
- The signal cable is short-circuited to the supply voltage
What you can do
- 1Read the code, clear it and test the AUX panel to see whether the fault comes back
- 2Check that the audio system fuses are intact; the location of each fuse is in the owner's manual or on the cover of the fuse box
- 3Check the connectors at the AUX panel and the audio module for loose or corroded contacts
- 4Look for chafing along the wire leading from the AUX panel and use a multimeter to check that it has no contact with the battery positive lead
- 5If the fault remains, have a workshop check the integrated audio module (IAM) and the AUX panel with diagnostic equipment
Symptoms you may notice2
- The AUX panel works poorly or not at all
- The AUX panel does not work
General guidance for car owners. Diagnosis on the car can point to a different cause.