For 1990-2009 cars

### Removal Procedure

1. Remove the air cleaner housing and duct assembly. Refer to Floor Air Outlet Replacement .
2. Disconnect the electrical connector switch.
3. Remove the switch.

### Installation Procedure

1. Apply sealant with Teflon® P/N 21485278 or equivalent on the threads before installing.
2. Install the switch

Tighten
Tighten the back-up lamp switch to 23 N·m (17 lb ft).

3. Connect the electrical connector to the switch.
4. Install the air cleaner housing and duct assembly. Refer to Floor Air Outlet Replacement .