Operation CHARM: Car repair manuals for everyone.

Misfire History #1 (Thru) #8

The scan tool range is 0-255 counts. This parameter indicates the total level of misfire that has been detected on each cylinder. The misfire history counters will not update or show any activity until a misfire or DTC P0300 has become active. The misfire history counter will update every 200 cylinder firing events. Non-Driven Wheel Speed: The scan tool range is 0-255 km/h (0-158 mph). This parameter indicates the speed of the rear wheels. The PCM receives the information from the Electronic Brake And Traction Control Module (EBTCM) via class 2 serial data.