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Back-up lights not working. #731449
January 02nd 2018 11:25 pm
January 02nd 2018 11:25 pm
Joined: Sep 2015
Posts: 83
So-Cal
C
chevydude1987 Offline OP
journeyman
chevydude1987  Offline OP
journeyman
C
Joined: Sep 2015
Posts: 83
So-Cal
New bulbs but still not working. Tail, brake, and signals work fine. No problem switching to R. Even wiggled the gear selector and nothing. All fuses are good. Wiring seems good. Any ideas?? Thanks.

Re: Back-up lights not working. [Re: chevydude1987] #731457
January 03rd 2018 9:27 am
January 03rd 2018 9:27 am
Joined: Dec 2011
Posts: 577
Ca. USA
SpaceTruckin Offline
addict
SpaceTruckin  Offline
addict
Joined: Dec 2011
Posts: 577
Ca. USA
Possibly a short in the bulb socket?


Steve
1967 Chevy 90 "Space Truckin"
350 SBC w 290hp/ 335tq, Sanderson Headers, Art Carr THM 200 4R, 3:36 posi

1973 Chevy 110 "Orange Bang" w emphasis on the BANG :-)
383 Stroker w 440hp/ 480tq, FiTech, Long Tube Headers, 700R4, 3:73/ Eaton Truetrac, "Cruiseaire" Original

Re: Back-up lights not working. [Re: chevydude1987] #731463
January 03rd 2018 10:42 am
January 03rd 2018 10:42 am
Joined: Feb 2012
Posts: 55
Fairfax Virginia
StanVan Offline
journeyman
StanVan  Offline
journeyman
Joined: Feb 2012
Posts: 55
Fairfax Virginia
I'd say the switch is bad.


Einstein, when describing radio said "Wire telegraph is like a very long cat. You pull his tail in NY and he meows in LA. And radio works the same way: you send signals here, they receive them there. The only difference is that there is no cat."
Re: Back-up lights not working. [Re: chevydude1987] #731484
January 03rd 2018 8:00 pm
January 03rd 2018 8:00 pm
Joined: Mar 2016
Posts: 314
Tucson,Az.
H
Hasan Ben Sobar Offline
enthusiast
Hasan Ben Sobar  Offline
enthusiast
H
Joined: Mar 2016
Posts: 314
Tucson,Az.
In this order:

1)Remove the "plug" from the switch.
2)Jump the two leads with a paper clip/ wire (or something similar).
3)Turn the key to the "on" position.
4)Check lights. If they're on-the switch is bad. If not , possible(probable) ground issue. If you end up searching for wiring issues , leave the jumper in so you can leave the trans in park and not have to explain why you got run over by your own van.

Remember this about electrical issues : the dumber the problem , the more likely it is a ground issue.

Last edited by Hasan Ben Sobar; January 03rd 2018 8:03 pm.

Tucson-it's a dry heat...like an oven
Re: Back-up lights not working. [Re: Hasan Ben Sobar] #731589
January 08th 2018 2:43 am
January 08th 2018 2:43 am
Joined: Sep 2015
Posts: 83
So-Cal
C
chevydude1987 Offline OP
journeyman
chevydude1987  Offline OP
journeyman
C
Joined: Sep 2015
Posts: 83
So-Cal
Originally Posted by Hasan Ben Sobar
In this order:

1)Remove the "plug" from the switch.
2)Jump the two leads with a paper clip/ wire (or something similar).
3)Turn the key to the "on" position.
4)Check lights. If they're on-the switch is bad. If not , possible(probable) ground issue. If you end up searching for wiring issues , leave the jumper in so you can leave the trans in park and not have to explain why you got run over by your own van.

Remember this about electrical issues : the dumber the problem , the more likely it is a ground issue.


I'm lost. What plug from what switch?? And what 2 leads do I jump?? Lol. I hope I dont get ran over by my own van!

Re: Back-up lights not working. [Re: chevydude1987] #731591
January 08th 2018 8:13 am
January 08th 2018 8:13 am
Joined: Dec 2000
Posts: 4,032
Eastpointe, MI ,yewessay
Vanner68 Offline
pooh-bah
Vanner68  Offline
pooh-bah
Joined: Dec 2000
Posts: 4,032
Eastpointe, MI ,yewessay
Get a wiring diagram.

Diagnosing wiring issues without one is like trying to drive from Prescott Michigan to Doyle Tennessee without a road map.


Gregg Groff

The right to bear vans

65 ChevyVan Pontiac OHC 6/TH2004R
68 ChevyVan 108 454/4L80E
86 Dodge "Yeah, it's got a 318"
83 ChevyVan Shorty- B2%B Pt II
Re: Back-up lights not working. [Re: chevydude1987] #731597
January 08th 2018 10:27 am
January 08th 2018 10:27 am
Joined: Feb 2012
Posts: 55
Fairfax Virginia
StanVan Offline
journeyman
StanVan  Offline
journeyman
Joined: Feb 2012
Posts: 55
Fairfax Virginia
It would help to know year/model you have, and then someone who has experience with that year/model/problem could help. But, I'll try.

Most likely, the switch is where the steering column goes through the floor. And also, depending on year, back up lights may be the only thing switched, so there would only be two wires, making it easy to know what to jump.

But,truthfully, I'm just guessing.



Einstein, when describing radio said "Wire telegraph is like a very long cat. You pull his tail in NY and he meows in LA. And radio works the same way: you send signals here, they receive them there. The only difference is that there is no cat."
Re: Back-up lights not working. [Re: chevydude1987] #731606
January 08th 2018 3:05 pm
January 08th 2018 3:05 pm
Joined: Sep 2015
Posts: 83
So-Cal
C
chevydude1987 Offline OP
journeyman
chevydude1987  Offline OP
journeyman
C
Joined: Sep 2015
Posts: 83
So-Cal
True. Year and model would be a good idea. 1987 G20.


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