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Old 06-22-2015, 07:59 PM   #1
1971_402
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New Painless Harness NO turn Signal Blinkers

Hey everybody I have 1972 C10 with a new painless harness that I just installed. Iam having trouble finding out why my turn signals wont blink. I have power going to the switch and out to the light with 12v at the light. brake switch works stop lights come and headlights turn on and so does the turn signal lights but they wont blink it just stays on. oh and brake light do come on when the pedal is pressed. and I have 2 ground leads on the frame to bed, 2 ground leads on the frame to cab, and 2 ground leads frame to core support. and I have a ididit steering column and running standard type filiment bulbs no LED's. and checked all fuses all ok.. any help would be appricated.. thanks again
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1969 Chevy C10 Shortbox SB/TH350(SOLD)
1971 GMC Sierra Grande BBC(SOLD)
1972 Chevy C20 Longbed SBC/4Speed(Sold)
1972 Chevy C10 LWB-SWB/Bagged(ALMOST)
1972 Chevy C10 Shortened/SBC(DONE)
1981 Chevy C10 SWB 383/TH350(SOLD)
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Old 06-23-2015, 06:20 AM   #2
ranger danger
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Re: New Painless Harness NO turn Signal Blinkers

This might sound really dumb but try replacing the flasher. Also make sure the emergency flashers are off. My 69' emergency flashers don't work and when they are turned on, neither do the turn signals.
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Old 06-23-2015, 08:59 PM   #3
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Re: New Painless Harness NO turn Signal Blinkers

painless has 2 flashers; turn and hazards
try your hazards and then swap out the flashers
also sometimes with the hazard button partially in the blinkers won't work or the front lights come on with the brakes
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Old 06-23-2015, 09:11 PM   #4
1971_402
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Re: New Painless Harness NO turn Signal Blinkers

Tried swapping flashers and replaced them completly.. same result
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1969 Chevy C10 Shortbox SB/TH350(SOLD)
1971 GMC Sierra Grande BBC(SOLD)
1972 Chevy C20 Longbed SBC/4Speed(Sold)
1972 Chevy C10 LWB-SWB/Bagged(ALMOST)
1972 Chevy C10 Shortened/SBC(DONE)
1981 Chevy C10 SWB 383/TH350(SOLD)
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Old 06-24-2015, 12:56 AM   #5
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Re: New Painless Harness NO turn Signal Blinkers

Just replaced turn signal switch and now iam popping hazard fuse's.. it's late and I'll continue tomorrow. any ideas...
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1969 Chevy C10 Shortbox SB/TH350(SOLD)
1971 GMC Sierra Grande BBC(SOLD)
1972 Chevy C20 Longbed SBC/4Speed(Sold)
1972 Chevy C10 LWB-SWB/Bagged(ALMOST)
1972 Chevy C10 Shortened/SBC(DONE)
1981 Chevy C10 SWB 383/TH350(SOLD)
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Old 06-25-2015, 10:57 PM   #6
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Re: New Painless Harness NO turn Signal Blinkers

A splayed wire was hitting steering colunm housimg.. fixed that but still no turn signal lights. still searching
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1969 Chevy C10 Shortbox SB/TH350(SOLD)
1971 GMC Sierra Grande BBC(SOLD)
1972 Chevy C20 Longbed SBC/4Speed(Sold)
1972 Chevy C10 LWB-SWB/Bagged(ALMOST)
1972 Chevy C10 Shortened/SBC(DONE)
1981 Chevy C10 SWB 383/TH350(SOLD)
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Old 06-26-2015, 07:17 PM   #7
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Re: New Painless Harness NO turn Signal Blinkers

look at the steering column connector and check for 12 volts on the purple wire with the key on. Since your key switch is burnt up you probably won't have any voltage there. This is probably why the turn signals don't work. your wipers and heater fan are on the same circuit. There is a 12 gauge brown wire on the accessory terminal of the key switch that sends power to the fuse panel. this wire must have 12 voltage on it to power the turn signals.
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Old 06-26-2015, 11:25 PM   #8
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Re: New Painless Harness NO turn Signal Blinkers

Checked the purple wire in the steering column connector and also the accessorie brown wire on the switch and they both have 12volts .. also was checking the flashers connection and they have 12 volts with the key on and the turn signal switch in the neautral position and left or right position. doesnt seem right.. I appreiciate all the help guys
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1969 Chevy C10 Shortbox SB/TH350(SOLD)
1971 GMC Sierra Grande BBC(SOLD)
1972 Chevy C20 Longbed SBC/4Speed(Sold)
1972 Chevy C10 LWB-SWB/Bagged(ALMOST)
1972 Chevy C10 Shortened/SBC(DONE)
1981 Chevy C10 SWB 383/TH350(SOLD)
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Old 06-27-2015, 03:07 PM   #9
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Re: New Painless Harness NO turn Signal Blinkers

purple is turn flasher, should be hot with key on only
brown is hazard flasher, should be hot with key on/off

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