Checking The Function Of The Infotainment Control Module (ICM)
With the ignition key in position I or II, check that the infotainment control module (ICM) is powered and grounded by checking that the button illumination for the infotainment control module (ICM) lights.
If the button illumination lights up, the infotainment control module (ICM) is powered and grounded.
Does the button illumination light?