This is for 2nd Gens but might be worth a try.
Self-Test Diagnostics
WARNING:
THIS TEST IS A KEY ON ENGINE OFF (KOEO) TEST ONLY THAT IS CONDUCTED IN PARK ONLY WITH EMERGENCY BRAKE FULLY ENGAGED.
l Enter Self-Test Diagnostics by depressing the speed control OFF switch while turning the ignition key ON, ensuring engine DOES NOT start and is not running. The speed control indicator lamp on the intrument panel will flash ONCE to indicate that speed control module entered the diagnostic mode. Release the OFF switch.
l Note:
If the ON switch is not pressed within 5 seconds after entering diagnostic mode, the module times out and the procedure must be started over.
Press the remaining switches in this sequence: ON, RESUME (RSM), COAST (CST), and SET/ACCEL
l The speed control indicator lamp will flash as each switch is pressed. Press each switch in the sequence immediately after the light goes out for the previous switch.
l After all five speed control switches complete the sequence, the indicator lamp will flash to indicate a Pass or Fail:
— 1 Flash - Test passed.
— 2 Flashes - BOO switch defective, circuit defective, or brake pedal applied.
— 3 Flashes - Brake deactivation switch is open or circuit defective.
— 4 Flashes - Vehicle speed sensor is out of range or not connected.
— 5 Flashes - Speed control servo is defective.
l Immediately after the passed STATIC test, the speed control module then performs a DYNAMIC test automatically by actuating the throttle lever from 1mm to 10mm of travel from the idle position. During the DYNAMIC throttle pull, observe throttle movement to witness any binding or sticking of actuator cable, proper connection of actuator cable to throttle lever, and ensure THROTTLE RETURNS BACK TO IDLE POSITION. If improper connection and/or binding or sticking of actuator is observed, go to Symptom Chart.
l Return Ignition Switch to the OFF position and proceed to the following Symptom Chart, if necessary.
