Exiting Diagnostics
WARNING: This page is about a different car, the 1990 Cadillac Fleetwood and 1990 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
To exit diagnostics without clearing trouble codes and return to ".7.0", (".7.0" indicates the system is ready for the next diagnostic feature to be selected), depress the AUTO button on the FDC until temperature setting reappears on the ECC panel. Turning the ignition switch off for 10 seconds will also effect an exit from self-diagnostic mode without erasing trouble codes.