OEM 2002 Buick Century Neutral Safety Switch

2002 Buick Century Neutral Safety Switch Parts and Q&A

• Q: How to replace the Neutral Safety Switch on 2002 Buick Century?

  A: To replace pnp switch, first set the parking brake and block the wheels, then put the vehicle in neutral position. Remove the air cleaner intake duct, the automatic transaxle range selector cable from pnp switch and disconnect the pnp switch electrical connectors. Next take off the automatic transaxle range selector lever nut and the lever itself, then the bolts holding pnp switch and remove pnp switch. For installation purpose, a new pnp switch is pinned in the neutral position, make sure the shift shaft is in neutral position. If the bolt holes are not aligned, check the position of the shaft. Mount the switch to the pnp switch along with the shift shaft flats, and bolt it onto the mounting boss using screws that must be tightened to 25 nm (18 ft. Lbs.). Reinstall the automatic transaxle range selector lever, along with nut, also tighten nut to 25 nm (18 ft. Lbs.)". Connect the pnp switch electrifiers and plug the automatic transaxle range selector cable to pnp switch. Check that the engine only starts into the park or neutral position after installation; if it does not start at any other position, adjust the pnp switch and scan the shifter and automatic transaxle range selector lever. Last, reinstall the air cleaner intake duct, remove blocks of the wheels, and release the parking brake.