Note On Intermittents

Select PCM input switch test. Manipulate affected wiring and connectors and look for throttle switch status change. If throttle switch state changes momentarily, "X" will appear on display.

Fig 1: PCM Code E026, Schematic, Shorted Throttle Switch Circuit

Courtesy of GENERAL MOTORS CORP.

Fig 2: PCM Code E026, Flow Chart, Shorted Throttle Switch Circuit

Courtesy of GENERAL MOTORS CORP.

Fig 3: PCM Code E026