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Home >> GMC >> 1983 >> Jimmy 6.2 C >> Repair and Diagnosis >> Engine Performance >> System >> Feedback Carburetor Tests W/Codes >> Prom R & I >> Removal

Prom R & I: Removal

  1. Remove ECM. Remove sheet metal screw holding access cover closed, then remove acccess cover. Place blade of small, flat screwdriver at PROM carrier reference end between edge of opening in case and underside of protruding lip of carrier. Pry up side of carrier as far as possible.
  2. Repeat procedure on other reference end lip. Grasp carrier with thumb and forefinger. Gently rock carrier from side to side while applying upward force and remove PROM.
Fig 1: Replacing PROM in Electronic Control Module
G8524
CAUTION: The PROM will be destroyed if it is installed backwards and the ignition switch is turned to the "ON" position.