I suck at electrical stuff!! - ZR-1 Net Registry Forums

yzpilot · 12-11-2013

Ok guys, Hopefully someone can shed some light on this for me. My 91 has a non operating high tail light. It was inop since I bought the car, so I figured maybe I would be lucky and the bulbs were bad! No such luck. Changed all four and no dice. I am referencing the FSM and it talks about checking for opens on ckt 20 or ground ckt 150. This is greek to me! Anyone care to offer some advice? I really am clueless...not afraid to admit. Also my backup lights arent working either!!

Thanks guys!

Schrade · 12-11-2013

Open means no 12V coming TO the light bulb socket. Bad ground means 12V is coming TO the socket, but 12V can't ground out to the frame.

You have a multimeter?

You need one, or you need a LOT of money to buy parts blindly, and hope to find a winner (NEVER works THAT way).

yzpilot · 12-11-2013

Thanks Schrade. Yeah, got a multimeter. Will troubleshoot tomorrow.

daviddu79 · 12-11-2013

For the reversing lights often conctateur gearbox

daviddu79 · 12-11-2013

For the reversing lights often conctateur gearbox

http://www.ecklerscorvette.com/corve...1989-1996.html

yzpilot · 12-11-2013

Thanks David! I'll troubleshoot the b/u switch!

Racinfan83 · 12-11-2013

My high mount brakelight was inop when I took the car for State Inspection. The dealer changed the bulb, ran the wires, etc. When I looked it up online on my phone and told them there were TWO brakelight switches - they were like "Oh yeah....we were gonna check that next"

(yeah right) Guess what the problem was... SO - check out the brakelight switches under the dash...

WVZR-1 · 12-11-2013

Quote:

Originally Posted by yzpilot

Ok guys, Hopefully someone can shed some light on this for me. My 91 has a non operating high tail light. It was inop since I bought the car, so I figured maybe I would be lucky and the bulbs were bad! No such luck. Changed all four and no dice. I am referencing the FSM and it talks about checking for opens on ckt 20 or ground ckt 150. This is greek to me! Anyone care to offer some advice? I really am clueless...not afraid to admit. Also my backup lights arent working either!!

Thanks guys!

CHMSL check first at the pedal and the second SL switch. The BU lights yes could be the connector at the switch, if you slap the shift lever a few times while entering reverse you can sometimes free the detent ball in the switch itself. Run it up to temperature and just exercise the shift lever through reverse a few times. It's a tough switch to remove but if you remove it and clean/soak the detent ball there's often nothing wrong with the switch, it just doesn't get the "exercise" it needs. Everything electrical needs a little exercise. the mirror, window switches, a/c control, DIC and the radio controls.

Your FSM will point you towards the correct switch.

yzpilot · 12-11-2013

Thanks so much guys!! Will check all these out and let you know what I find!

12-11-2013	#1
yzpilot Join Date: Jul 2013 Location: Oceanside, California Posts: 66	I suck at electrical stuff!! Ok guys, Hopefully someone can shed some light on this for me. My 91 has a non operating high tail light. It was inop since I bought the car, so I figured maybe I would be lucky and the bulbs were bad! No such luck. Changed all four and no dice. I am referencing the FSM and it talks about checking for opens on ckt 20 or ground ckt 150. This is greek to me! Anyone care to offer some advice? I really am clueless...not afraid to admit. Also my backup lights arent working either!! Thanks guys! __________________ Erik ________________________ 1991 #422 Blk/Blk

12-11-2013	#2
Schrade Join Date: Dec 2012 Location: NC Posts: 1,786	Re: I suck at electrical stuff!! Open means no 12V coming TO the light bulb socket. Bad ground means 12V is coming TO the socket, but 12V can't ground out to the frame. You have a multimeter? You need one, or you need a LOT of money to buy parts blindly, and hope to find a winner (NEVER works THAT way). __________________ I'm getting my snappics / threads removed blindly as fast as I can, to get in compliance with copyright / license TOS on the boards here (lots of FSM pages and other copyright / license violations on my part; sorry guys). And thanks to all the guys who didn't whine when I posted those FSM copyrighted / licensed stuff in my threads... ( :thumbsup: [b]and to think I complied with a mod's request to delete a pic of him in a Challenge Car in NCM Museum, so he wouldn't get in hot water)[/b] Thanks to several guys here for sending parts FREE; BearlyFlying, WeGone, Geezer, GoldCylon, and more there, TonyD, mike100, fletchusmc... 1990 #2794; 4L60e Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless, Power Effects 3" [IMG]https://lh5.googleusercontent.com/-GHpfzty7DVU/UQn-0Ru2xAI/AAAAAAAAA14/08mz1p4QLD4/s445/Screenshot-5.png[/IMG]

12-11-2013	#3
yzpilot Join Date: Jul 2013 Location: Oceanside, California Posts: 66	Re: I suck at electrical stuff!! Thanks Schrade. Yeah, got a multimeter. Will troubleshoot tomorrow. __________________ Erik ________________________ 1991 #422 Blk/Blk

12-11-2013	#4
daviddu79 Join Date: May 2011 Location: france Posts: 53	Re: I suck at electrical stuff!! For the reversing lights often conctateur gearbox __________________ ZR-1 Red and Black vin 1554

12-11-2013	#5
daviddu79 Join Date: May 2011 Location: france Posts: 53	Re: I suck at electrical stuff!! For the reversing lights often conctateur gearbox http://www.ecklerscorvette.com/corve...1989-1996.html __________________ ZR-1 Red and Black vin 1554

12-11-2013	#7
Racinfan83 Join Date: Apr 2013 Location: Eastern Missouri Posts: 773	Re: I suck at electrical stuff!! My high mount brakelight was inop when I took the car for State Inspection. The dealer changed the bulb, ran the wires, etc. When I looked it up online on my phone and told them there were TWO brakelight switches - they were like "Oh yeah....we were gonna check that next" (yeah right) Guess what the problem was... SO - check out the brakelight switches under the dash... __________________ [LEFT][SIGPIC][/SIGPIC][/LEFT] [CENTER][COLOR=Indigo][SIZE=4][I][B] Now Sold 1990 ZR-1 #2093, Black on Black..[/B][/I][/SIZE][/COLOR][/CENTER]