Oldsmobile 19152823 Switch Asm, Parking/Neutral Position & Back Up Lamp

To remove the Park/Neutral switch on 1994 models, unplug the electrical connector and pull the switch straight out of the steering column. Align the actuator with the holes in the shift tube, press down on the front of the switch until the tangs snap into the rectangular holes in the steering column jacket.

Firmly apply the parking brake and set the shift lever to Neutral. Pry the shift cable from the transmission shift lever ball-stud, remove the nut retaining the shift lever to the shaft, and take off the lever. Disconnect the electrical connector, remove the mounting bolts, and slide the switch off the shaft. Lightly file the shaft's end if needed. To install the switch with the shaft still in Neutral, align the switch's flats with those on the shaft, lower the switch onto the shaft, and install the bolts. Adjust the switch's alignment by moving it as necessary. Reinstall the shift lever and cable, verify starting in Park and Neutral, and adjust further if needed by loosening the mounting bolts and rotating the switch slightly until it functions correctly.

The purpose of the starter safety switch is to prevent the engine from being cranked unless certain conditions are met.

The camshaft sensor and crankshaft sensor, depending on the engine type, should be checked for resistance and proper signal output.

Installation involves using a special adjustment tool, aligning the switch with the manual shaft flats, sliding it onto the manual shaft, and securing it with mounting bolts. Remove the adjustment tool and complete the remaining installation steps, tightening the manual lever retaining nut to the specified torque.

The ignition key should come out only in the Lock position.

If any component fails these checks, replacement may be necessary.

If the Park/Neutral switch doesn't operate as described for 1994 models, it should be replaced.