This vehicle may have an auxiliary input jack and a USB port, located on the audio faceplate. External devices such as iPods®, laptop computers, MP3 players, CD changers, USB storage devices, etc. can be connected to the auxiliary input jack using a 3.5 mm (1/8 in) cable or the USB port depending on the audio system.
Press the CD/AUX button to play audio from the portable player.
See “Using the Auxiliary Input Jack” and “Using the USB Port” under Radio(s).
Chevrolet Cobalt Service & Repair Manual. Relearn
Initialization Sequence
The EBCM performs one initialization
test each ignition cycle. The initialization of the EBCM occurs when the
EBCM detects the there is a minimum of 500 RPM from the ECM by means of
a serial data message and the stop lamp switch is not applied. The initial ...