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#1
03-13-2006, 10:42 PM
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No Tail Lights
'97 suburban with intermittent tail lights, sometimes they work, sometimes they dont. Changed the light switch, fuses seem to be good. Any idea where I should start looking? Has there been any history of this problem?
Thanks Jim2005 
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#2
03-14-2006, 12:52 AM
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Re: No Tail Lights
S210 Instrument panel harness 12cm from steering column breakout could be the problem. Looks like it should be a group of brown wires.
S412 Rear lamp harness 23cm from taillamp extension breakout. If it is only the rears being effected I would suspect this.
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#3
04-07-2006, 01:16 PM
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Re: No Tail Lights
That's great info - I have a 96 Suburban that the tail lights just stopped working - everything else is fine. brake lights work/back up lights work
Where is the location of the S412 rear lamp harness? Is there a separate ground for the tail lights (my first thought)? Should I disconnect my trailer harnesses to see if they are the culprit? Thanks Brian
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#4
04-08-2006, 08:59 AM
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Re: No Tail Lights
follow your trailer wiring back behind the bumper and it should connect to a harness. That is the culprit. Yes disconnect the trailer harness and try it, it worked for me.
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#5
04-08-2006, 10:09 AM
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Re: No Tail Lights
Go with the trailer wiring first. That's was the issue for me; previous owner didn't do the best job and the wires eventually rubbed through the insulation and shorted to ground.
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#6
04-11-2006, 02:12 PM
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Re: No Tail Lights
Trailer wiring splices were the problem just as you all had predicted.
 Two out of 4 wires from the OEM plug rotted out since they were pulled out and were unprotected. Thanks!
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