Question about 2002 Chevrolet Express
2002 chevy express brake lights wig wag . When brake goes on the top middle brake light goes on, but the 2 side brake lights go off (when all lights are on)
SOURCE: The brake lights my 2000
We bought a 2000 Blazer in '02 and one day I noticed there were no brake lights, but the 3rd light on top worked fine. I did some research online and found out there was a recall on this problem due to the hazard switch on the column. I also found out if I wiggled the hazard switch a certain way, the brake lights worked. I was able to get by for awhile by wedging a 'widget' beside the hazard switch button and the hole in the column cover. This worked fine until someone would knock the widget out of place.
I finally got around to having the switch replaced at a local dealer. All was fine until last week when I was told the brake lights were out again and I found out my hazard lights didn't work either. I changed out the switch assembly myself this time, and once I had it out I saw what happened. The brake light voltage comes in to the assembly on a white wire, and the first contact this goes through is on the hazard switch. In my case the contact had obviously overheated from the brake light current and melted the plastic holding the contact in place, thus breaking the circuit to the brakes. Either a poor design or too much current for the circuit to handle.
Soooooo now I am in the process of replacing the four bulbs in the tail/brake light assembly with 3 watt Luxeon LED plug-in replacements. The current draw of the original bulbs was measured at 2.2 amps at 13.8 volts, times 4 bulbs makes about 8.8 amps that goes through the contact in the hazard switch whenever the brakes are stomped. The LED replacements draw .2 amp each, so times 4 will be .8 amp or less than 1/10th of the original equipment bulbs. These LED bulbs in my opinion are as bright or brighter than the original equipment and hopefully will help from burning out another switch assembly.. David
Posted on Aug 16, 2008
SOURCE: new 208 dodge charger with
To activate factory wigwags in a 2007/2008 Police Dodge Charger, connect pin 1 of the 24way upfitter connector found at the console (near the radio) to battery voltage -- the 47k series resistor is only required for MY2006.
That connection causes the VSIM module (located under the AM/FM radio) to send a CAN message to the FrontControlModule, where the front control module drives the headlights in the wigwag mode.
Pin 2 of the upfitter connector does the rear wigwags.
Some of the pinout of the 2008 upfitter connector from the VSIM to the console is different than 2006/2007 -- a Chrysler harness booboo for 2008.
Note that the VSIM (also known as PTIM) module is only on factory police Chargers -- civilian cars do not have this module.
Posted on Sep 09, 2008
Continually push the brake pedal to set the brakes. (With park brake off). Brakes are self adjusting and will adjust to correct position.
Posted on Mar 29, 2009
I figured out my problem!
From the VERY BEGINING... I changed my brake pedal switch with a BRAND NEW switch, and the lights still didn't work.
Well, I went back down there with a live wire and touched the contacts..and guess what.. the brake lights lit up!
I got a faulty NEW brake pedal switch!! I went a year with this problem, so learn from my issue, test even your new parts if it doesn't fix the problem to completely rule it out!
I hope you guys figure out what's going on with your issue.
Posted on Apr 21, 2009
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