Where is the trigger for a reverse light?
Finally you have the trigger wire, with a bundle of factory wires at the rear of your vehicle, finding the reverse light can be tricky, we want to connect the trigger to the positive power source for the rear reverse lights, this job is made easier if you have a factory wiring diagram, or the addition of a trailer wiring plug.
What do you need for a reverse light?
The harness has a relay, plus the main power terminals with open eyed crimp ends, an inline fuse holder, two Deutsche plug outlets, a toggle switch and a trigger wire which would usually go onto your high beam to light up your driving lights.
How do you wire a reverse light bulb?
Once you have found the wire that powers your reverse light you can cut splice solder and heat shrink the join, for extra protection we taped up the whole bunch to prevent it pulling or snagging. Trim the corrugated tubing, and tape to make it tidy, then cable tie the bundle into place.
Where does the red lead go on a reverse light?
We are taking advantage of all the extra length of wire running the red lead directly from the switch to the back of the vehicle. We are now ready to install the harness, but before we wire anything up, we need to disconnect the fuse so we don’t short anything out.
What happens when two reversing lights go together?
If the bulb still fails to light, the fuse may have blown. You should also suspect a blown fuse if two reversing lights go together. In many cases the fuse protecting the reversing lights also covers other accessories (see your car handbook to find out which ones).
How can I check if my reverse light is working?
To check the reverse switch is working correctly, turn the ignition on and select reverse gear. Connect one side of the test lamp to earth and probe each terminal in turn. The switch should illuminate when each terminal is touched. One of the most common problems is a blown bulb.
What kind of reversing light switch do I Need?
There are two main types of reversing light switch. On a manual gearbox the switch usually screws into the gearbox casing and may have a locknut to hold it in position. This type of switch has two terminals. On an automatic gearbox the switch is similar in appearance but usually has four terminals instead of two.
How many terminals does a reversing light have?
On an automatic gearbox the switch is similar in appearance but usually has four terminals instead of two. Two are for the reverse light circuit and two for the inhibitor switch circuit which prevents the car being started in any gear position other than ‘N’ or ‘P’. Reversing lights are not generally a legal requirement but they are useful.