1 Drive the vehicle until transmission reaches operating temperature.
2 With ignition ON and engine OFF place gear selector into D position.
3 Turn the power shift button to POWER.
4 Cycle the ignition switch OFF-ON.
5 Move the gear selector into position 2.
6 Turn the powershift button to AUTO.
7 Move the gear selector into position 1.
8 Turn the powershift button to POWER.
9 Depress the throttle pedal and release.
10 The Power Light on either the instrument cluster or the Power switch will begin flashing.
11 Read codes as described in the Code Format Description below.
12 Press the continue button to enter the code numbers and get the code description.