VOLVO
RSE-B12A012 - Auxiliary Input 2. General Electrical Failures. Circuit short to battery
System
Unknown System / Manufacturer Specific
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 RSE monitors the right-hand audio signal from the A/V AUX panel and sets the code if the voltage on it is too high.
Possible causes
- The signal is shorted to supply voltage
What you can do
- 1Check that the fuses for the rear seat entertainment are intact
- 2With the ignition off, use a multimeter to check that the audio wire from the A/V AUX panel has no contact with voltage
- 3Look for chafing on the audio wire from the A/V AUX panel and check that the connectors are fully seated
- 4With diagnostic equipment and the engine running, read the RSE parameters and check whether the audio signal from the AUX panel is listed
- 5If the fault remains, have a workshop with diagnostic equipment check the A/V AUX panel and its wiring
Symptoms you may notice1
- Rear seat entertainment does not work, has reduced function or works incorrectly
General guidance for car owners. Diagnosis on the car can point to a different cause.