VOLVO
RDAR-B1A8912 - Satellite Antenna. General Electrical Failures. Circuit short to battery
System
Unknown System / Manufacturer Specific
Volvo models this fault code applies to
Applies to the following models:
5 modelsS60 (2011–), S80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Show models by year and engine (5)
What does this fault code mean?
The radio receiver (RDAR) monitors the satellite antenna and reads a value that is too high. The fault lies in the antenna circuit being shorted to battery voltage, and the digital radio then does not work.
Possible causes
- The antenna circuit is shorted to battery voltage
What you can do
- 1Check the antenna connector: is it firmly seated, free from oxidation, and without loose joints?
- 2With the battery negative lead disconnected, use a multimeter to check that the antenna cable has no contact with battery voltage
- 3Look for chafing and damaged insulation on the antenna cable where it could touch a live wire, and repair it
- 4Clear the code and road test the car. If it returns, have a workshop carry on with the fault-tracing
Symptoms you may notice1
- The digital radio does not work
General guidance for car owners. Diagnosis on the car can point to a different cause.