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Old 06-23-2018, 06:22 PM   #2
rgunlock
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Join Date: Jul 2009
Location: Tomball, Texas
Posts: 1,592
Re: How do you test turn signal switch?

The tests show that the turn signal switch is probably ok. I had continuity from purple to light blue and yellow with the lever in left turn position but not otherwise. Same for right turn with continuity between purple and dark blue and dark green. I jumpered between purple, yellow and light blue with key in ACC and blew the fuse. So not the turn signal switch.

To get at these connectors, I removed the lower column cover and the panel from the dash under the column. This exposed what I'll call a "harness retainer" bolted to the column at say 4 and 8 o'clock positions. Is there supposed to be any sort of insulator between the bar on this retainer heading forward and the wires into the connector? I can see a pretty good indention in all the wires insulation about an inch up from the connector where this retainer bar presses against them, but I don't think any real damage yet.
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Rick

78 GMC K15 SWB, 350/NV4500/NP205/4.10s Project Hazel
71 GMC C25 350/TH400 - Project Angie
59 Chevy SWB Stepside (next in line? Not sure now )
2001 GMC Sierra K2500
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