Code P085, Idle Throttle Angle Too High: Action

PCM turns on MIL.

NOTE: Test number refers to number on diagnostic chart.

If engine stalls, continue test. Stall may be caused by carbon deposits on throttle valves and throttle bores.

Fig 1: Code P085 Schematic (DeVille)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Code P085 Flow Chart (DeVille)

Courtesy of GENERAL MOTORS CORP.