Question about Cars & Trucks
Depress the brake pedal whilst connecting a volt meter to this white wire , if you get power it's to do with the brake switch , if no power then just a spare wire dropped down and no need to worry any further about this wire , so if it did show power remove the brake switch/control box and see if it's obvious where the wire fits , get a workshop manual to help as these manual are invaluable with step by step guides ,etc
Posted on Jun 14, 2014
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Posted on Jan 02, 2017
First replace the trailer light brake/turn signal fuses. I have seen where the fuse will show good, but loose connection in the block. You can easily do it by using the flashers. Using a test light you can check power in and out of the fuse. Just touch the tester to the metal pin on top of the fuse... on both sides. Power in and power out. If power is there on both sides and still nothing below the fuse box, the box is bad. Not a common problem. Also check http://www.etrailer.com/faq-wiring.aspx.
Posted on Jan 29, 2010
May want to look at replacing the wiper circuit board.It is located on the firewall adjacent to the wiper motor and has a some what square black cover with 3 torx screws and wireing harness pluged into the side.We had a truck that every time you washed it the wipers would stay on until it dryed out.You can try removing it and spaying it down with contact cleaner just watch the brease on the two contact tips.Well hope this helps.
Posted on Feb 05, 2010
The brake light switch is at fault. Get a new one and replace it. The location is at the brake pedal area mounted on a bracket with a plunger stud that rest on the brake pedal's arm the pad is attached to
Posted on May 08, 2010
Vehicle electric trouble shooting is the worst. Some of the problems you described the bulbs may have multiple filiments with only some burned out. It may sound silly but change the bulbs. Get a couple of new bulbs and try them in the different spots. Time, road vibrations and spring pressure causes the contacts on the bulbs to wear until they get a poor connection then you get a little arcing that build up a residue and a bulb that test good doesn't work.
Your on the right track with the ground wire. Try a test lamp with a good gound connection and test the different sockets, if your test light works but your bulb doesn't you have a ground fault. If neither work check the switch and fuse before you start tracing the wiring. These are just general trouble shooting tips It's very hard to trouble shoot electrical problems sight unseen.
Posted on Jun 13, 2010
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