Note On Intermittents

Manipulate PCM connector, 56-pin engine-to-dash connector, servo connectors and affected wiring. Note display for rapid change in servo position. Check circuit No. 403 for intermittent short to power.

Fig 1: PCM Code E68, Schematic, Cruise Control Command Problem

Courtesy of GENERAL MOTORS CORP.

Fig 2: PCM Code E68, Flow Chart, Cruise Control Command Problem

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Fig 3: PCM Code E68