VOLVO
IAM-B113412 - Phone 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:
4 modelsS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Show models by year and engine (4)
What does this fault code mean?
The IAM unit checks the signal from the phone and has registered that it is too high. The signal wire is short-circuited to voltage, and then the hands-free mode does not work.
Possible causes
- Short circuit to voltage on the signal wire between the module and the phone
What you can do
- 1Check that the fuses are intact
- 2With the ignition off, check the connectors at the module and at the phone connection for contact resistance, play and oxidation
- 3Go through the signal wire from the phone and look for chafing or spots where it may have touched another wire
- 4Use a multimeter to check that the signal wire from the phone has no contact with voltage
- 5After the work, clear the fault code and check that it does not return
Symptoms you may notice1
- The hands-free mode does not work
General guidance for car owners. Diagnosis on the car can point to a different cause.