MODE F1 (Code History)
WARNING: This page is about a different car, the 1991 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
In this mode, trouble code history data is displayed on the TECH 1. Data includes how many ignition cycles since trouble code occurred, brake switch status, vehicle speed and ABS state when trouble code occurred. Up to 3 trouble codes are included in ABS history data.