Notes On Intermittents

Select ECM input code EI72. Manipulate affected wiring and connectors and observe for throttle switch status to change. Check for intermittent ground on circuit No. 427.

Select ECM data code ED01. Manipulate affected wiring and connectors. Watch for TPS value to go above 14 degrees at closed throttle. Tap lightly on TPS with pencil to check for intermittent TPS operation. Check for binding TPS lever, intermittent open on circuit No. 476, or intermittent short to 5 volts on circuit No. 417 at TPS.

Fig 1: Schematic, Code EO26, Shorted Throttle Switch Control

Fig 2: Flow Chart, Code EO26, Shorted Throttle Switch Control

Fig 3: Flow Chart, Code EO26, Shorted Throttle Switch Control