VOLVO
RSE-B1D7812 - Auxiliary Input. 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 rear seat entertainment control unit (RSE) monitors the left audio signal from the A/V AUX panel. If the voltage on that signal becomes too high, the code is set and the rear seat entertainment does not work as it should.
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 left audio wire from the A/V AUX panel has no contact with voltage (plus)
- 3Look for chafing and pinched spots on the audio wire between the A/V AUX panel and the rear seat entertainment
- 4With diagnostic equipment and the engine running, read the RSE parameters and check whether the left audio signal 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.