Code P068, Cruise Control Servo Position Out Of Range: Action

WARNING: This page is about a different car, the 1995 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.

PCM disables cruise control for entire ignition cycle.

NOTE: Test numbers refer to numbers on diagnostic chart.

Checks if PCM override PS07 can fully retract cruise control servo.
Checks if PCM override PS07 is able to fully relax cruise control servo.
Checks if binding or a short to voltage on circuit No. 403 is keeping cruise control servo from fully relaxing.

Fig 1: Code P068 Schematic, Cruise Control Servo Position Out Of Range

Courtesy of GENERAL MOTORS CORP.

Fig 2: Code P068 Diagnostic Flow Chart, Cruise Control Servo Position Out Of Range

Courtesy of GENERAL MOTORS CORP.