October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Switch Test

After all codes have been shown and Code 55 has indicated end of message, actuate the following component switches. When these switches are activated and released, the digital display on the diagnostic Readout Tool must change. If not, check specific switch.

Brake pedal.
Shift gear selector from Park to Reverse and back to Park.
A/C switch (if equipped).
Rear defogger switch (if equipped).