Circuit/System Description
WARNING: This page is about a different car, the 2008 Isuzu i-370, 2008 Isuzu i-290, 2008 GMC Canyon, and 2008 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
When replacing a radio or installing a new radio, the radio must be setup and programmed using SPS through a TIS terminal. The SPS procedure will setup the radio with the correct calibration file, allowing proper radio operation. Failure to setup a radio will results in the radio displays CAL or CAL ERR.