copy and paste this link. http://www.autozone.com/servlet/UiBroker?ForwardPage=/az/cds/en_us/0900823d/80/18/bf/d6/0900823d8018bfd6.jsp that answer is for an automatic transmission. On the Manual Transmission it is differant. My info is on the 1997 but I am fairly certain that it is the same on the 99. on the right side of the transmission there are two electrical connections plugged into the transmission. The front most of these two is the backup light switch. the wires going to it should be Pink and Light Green. If you place the vehicle in any gear except reverse you can easily remove this switch. Just unclip the wire and use a 24mm deep well socket. The switch has a small ball on the end of it that is depressed when the vehicle is in Reverse. If you have electrical skills you can place an Ohm meter across the switch after you get it out and then press the ball in to see if the circuit closes. I forget which fuse is for this check fuse 12 15 and 16 I know the one for the backup lights is a 15amp fise but I am not sure which fuse location Good Luck
you can find the switch by looking underneath the truck right below the stick shift
left side of transmission
switch is on side of transmission under the car
screwed into front of transmission.
on the side of the transmission
The switch for the backup light switch for an automatic transmission is located on the transmission where the shifting cable enters the transmission (The side of the transmission closest to the radiator),how about for the manual trans mission models?
It is combined with the neutral safety switch and mounts to the transmission where the shifter linkage is attached.
Standard or automatic transmission, they both are mounted to the transmission.
You didn't state weather it was an Automatic or Manual transmission. Well any way they are both on the transmission. Manual transmission has a separate switch for the backup lights the automatic is built into the neutral safety switch on the transmission. Automatic switch is about $50.00. Manual switch is about $10.00. Hope you have a manual it is a lot cheaper.
Car has manual transmission.
The switch is on the left sie of the transmission just in front of the speed sensor for a manual transmission.
S100