Mode F0 (Data List)

Mode display is actual reading which each wheel speed sensor is sending to EBCM. See Fig 2. In this mode, vehicle can be driven and wheel speed information can be observed to determine if readings are comparable to actual vehicle speed. By pressing brake pedal, status of brake light switch can be observed.

Fig 1: Tech 1 Test Selection

Courtesy of GENERAL MOTORS CORP.

Fig 2: Tech 1 Data List Mode

Courtesy of GENERAL MOTORS CORP.