reverse lights
#12
This is for a 2001 47RE, but it should be very similar:
I'd set you meter to measure continuity, and have the alarm on. Unplug the fuse and bulbs. Plug the meter in where the fuse came out of on the "cold" side. Put the other end to ground. From their, wiggle the entire harness from the fuse box to the reverse switch. If it goes off, you have short to ground between the fuse box and B/U switch. Put the truck in reverse, engine off of course, and wiggle the wires between the B/U switch and the tail lights. You should be able to find out if you have a short to ground or not doing this.
Also, check for continuity between the B/U switch body, and the terminals in it.
I'd set you meter to measure continuity, and have the alarm on. Unplug the fuse and bulbs. Plug the meter in where the fuse came out of on the "cold" side. Put the other end to ground. From their, wiggle the entire harness from the fuse box to the reverse switch. If it goes off, you have short to ground between the fuse box and B/U switch. Put the truck in reverse, engine off of course, and wiggle the wires between the B/U switch and the tail lights. You should be able to find out if you have a short to ground or not doing this.
Also, check for continuity between the B/U switch body, and the terminals in it.
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01-06-2015 06:28 AM