Reverse light switch for the transmission. This switch is engaged when the transmission is put into reverse and turns on the back up lights. This swtich can easily get damaged during a clutch replacement. When faulty the backup lights will not illuminate ever.
5-speed manual transmissions only.
This switch is for model year 2000 and later and uses a "D" shaped connector. Please be sure your car uses this switch and not the earlier model that has an integrated plastic cap/shield/covering.