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Signals fast in the front and inoperative in the rear is an indication of an inoperative (or burned out) brake lamp. Check the rear brake/tail/bu light wiring harness, for it is probably disconnected. This harness is located just inside the rear bumper (or behind the trailer hitch if you have one). You may find two connectors. Also check the bulbs themselves. I used cheapo wire taps from Radio Shack to attach a custom trailer wire harness on my 1992 Suburban, and over time the road salt ate away at the exposed copper strands in the wires, giving me this symptom on a yearly basis.


NewHad the same problem with my 98 Suburban, found out that my tail light assembly is corroded, had it sand blast and it working superb. good luck

New My problem started with first one side, then a few days later it went to both sides. Turned out my cable under the rear bumper had caught on something when I was offroad driving, but it didn't completely pull apart to begin with. Then later, it finally parted all together. It took all of 10 seconds to repair it once I knew what was wrong.

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โˆ™ 2015-07-17 17:43:00
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Q: Why are the rear signals and tail lights and brake lights inoperative on a 1996 Suburban and the front turn signals work at a high speed?
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