1. RH satellite radio control operation check

Remove airbag module

    Op. 5580C18 AIR BAG MODULE - R+R

without detaching the trim and disconnect the wiring connector (Fig. 1)

Connect a multimeter between pins 1 and 7 and check the resistance values, pressing the single buttons according to the table below:

If the check is not ok, replace the RH radio control module

    Op. 5570T66 MODULE (ONE) ON STEERING WHEEL FOR RADIO CONTROL - R+R

2. LH satellite radio control operation check

Connect a multimeter between pins 1 and 5 and check the resistance values, pressing the single buttons according to the table below:

If the check is not ok, replace the LH radio control module

    Op. 5570T66 MODULE (ONE) ON STEERING WHEEL FOR RADIO CONTROL - R+R