Action Taken
WARNING: This page is about a different car, the 1990 Cadillac Fleetwood and 1990 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
Disengage cruise control.
Code E65 will detect a cruise control servo position sensor shorted to ground. Cruise servo position sensor is a potentiometer that changes resistance with servo position. Code E65 sets when ECM detects a low voltage indicating a short to ground in cruise servo position sensor circuit.