1992 Cadillac Seville BaseFACTORY OEM SERVICE PROCEDURE

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
G91G09348Courtesy of GENERAL MOTORS CORP.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.