What does fault code RDAR-0002 mean?

Diagnostic fault code details for RDAR-0002 (Volvo C30 (2007–2013), Volvo C70 (2006–2013), Volvo S40 (2004–2013)). Repair service at OBD Tuning.

VOLVO

RDAR-0002 - Antenna, satellite radio. Signal missing

System

Unknown System / Manufacturer Specific

Volvo models this fault code applies to

Applies to the following models:

5 models

C30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013), XC90 (2003–)

Show models by year and engine (5)

What does this fault code mean?

The digital radio receiver (RDAR) checks the signal from the satellite radio antenna and has registered that the antenna circuit is broken. The digital radio then does not work.

Possible causes

Break in the antenna circuit

What you can do

1Check the antenna connector: is it firmly fitted, free from oxidation and free from loose joints?
2With the battery negative lead disconnected, use a multimeter to check that the antenna cable between the receiver and the satellite antenna has no break
3Clear 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.