1 Drive the vehicle until transmission reaches operating temperature.
2 Stop the vehicle, place in park, or neutral and turn ignition OFF.
3 Locate the electronic transmission control module, if the LED inside the control module is flashing, it indicates that a fault is stored.
4 Turn ignition ON. If LED not flashing, then there are NO codes present.
5 Read codes as described in the Code Format Description below.
6 Press the continue button to enter the code numbers and get the code description.