VOLVO
RDAR-0001 - Control module. Internal fault
System
Unknown System / Manufacturer Specific
Volvo models this fault code applies to
Applies to the following models:
5 modelsC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013), XC90 (2003–)
What does this fault code mean?
The digital radio receiver (RDAR) checks its own internal status and has registered an internal fault. The digital radio then does not work.
Possible causes
- Internal fault in the radio receiver
What you can do
- 1Clear the code and road test the car to see whether it comes back
- 2Check that the antenna connectors and the connectors to the receiver are firmly fitted and free from oxidation
- 3If the fault returns, have a workshop replace the digital radio receiver (RDAR)
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.