69 coupe sb powerglide trans shifter backup light switch - Team Camaro Tech
Electrical & Wiring Troubleshooting electrical.

 
LinkBack Thread Tools Display Modes
post #1 of 10 (permalink) Old Sep 19th, 09, 02:33 PM Thread Starter
Senior Tech
bigsteve
 
Join Date: Mar 2007
Location: massachusetts
Posts: 1,077
69 coupe sb powerglide trans shifter backup light switch

The backup lights on my car are not working. I opened up the shifter plate and all connections look goog. It doesn't look like there is any adjustment just 2 screws mount it forward and aft. So would it be safe to say if its not working it needs to be replace or is there a way to test it?
bigsteve is offline  
Sponsored Links
Advertisement
 
post #2 of 10 (permalink) Old Sep 19th, 09, 03:32 PM
Senior Tech
 
Join Date: May 2004
Location: Southeast PA
Posts: 8,303
Re: 69 coupe sb powerglide trans shifter backup light switch

Well, the pink wire coming into the switch is the 12 V feed, so that is the first thing to check with key in run (or acc). If you have 12V, you can then connect a jumper wire between the pink and light green, then turn the key and see if the lights are on. If they come on, then the switch may be bad. If you have a multimeter, you can put it into "continuity" mode, hook to both switch terminals, and move the shifter back and forth and see if you get a tone.

Eric
69 'vert project big block/TKO 600 RR
68 'vert driver RS clone -- gone!
Eric Kammerer is offline  
post #3 of 10 (permalink) Old Sep 19th, 09, 04:04 PM Thread Starter
Senior Tech
bigsteve
 
Join Date: Mar 2007
Location: massachusetts
Posts: 1,077
Re: 69 coupe sb powerglide trans shifter backup light switch

I have 12v at the pink wire.
Did the jump wire and had nothing at the light.
Used a multi metter on the switch and I did get a tone.
I also cecked the bulbs in another socket and they worked.
What would be the next step?
Also the pink wire goes to the rear of the swith and the green in front correct?
bigsteve is offline  
 
post #4 of 10 (permalink) Old Sep 19th, 09, 07:15 PM
Gold Lifetime Member
Jeff
 
yellow69RS's Avatar
 
Join Date: Jul 2007
Location: Aurora, IL
Posts: 5,005
Send a message via Yahoo to yellow69RS
Re: 69 coupe sb powerglide trans shifter backup light switch

Check to see that you have power thru the switch to the green wire then follow the green wire and see where it loses power. I would probably quickly check at the socket just to see if the socket is bad before tracing it all the way.

Jeff
yellow69RS is offline  
post #5 of 10 (permalink) Old Sep 20th, 09, 07:33 AM Thread Starter
Senior Tech
bigsteve
 
Join Date: Mar 2007
Location: massachusetts
Posts: 1,077
Re: 69 coupe sb powerglide trans shifter backup light switch

I plugged in the pink wire and tested for power at the switch where the green wire connets and it had power. I checked the connector (interior harness to tail light harness) and it has power. removed the bulbs from the sockets and they both had power with car in reverse and none in park. Can ant one tell me why the bulb sockets have power but the lights will not work?
bigsteve is offline  
post #6 of 10 (permalink) Old Sep 20th, 09, 07:48 AM
Gold Lifetime Member
Jeff
 
yellow69RS's Avatar
 
Join Date: Jul 2007
Location: Aurora, IL
Posts: 5,005
Send a message via Yahoo to yellow69RS
Re: 69 coupe sb powerglide trans shifter backup light switch

Poor ground, bad bulbs, bad sockets. in that order. IMHO

Jeff
yellow69RS is offline  
post #7 of 10 (permalink) Old Sep 20th, 09, 08:41 AM Thread Starter
Senior Tech
bigsteve
 
Join Date: Mar 2007
Location: massachusetts
Posts: 1,077
Re: 69 coupe sb powerglide trans shifter backup light switch

I have already cleaned the ground in the trunk the one that attaches to the trunk lock bracket, is there another I should look at. I have checked the old bulbs and tried now 1156 and nothing. Also if I'm getting 1v at the socket with out the car running with a v meter why wouldn't it light the back up bulbs when all the other tail light bulb are working?
bigsteve is offline  
post #8 of 10 (permalink) Old Sep 20th, 09, 09:48 AM
Gold Lifetime Member
Jeff
 
yellow69RS's Avatar
 
Join Date: Jul 2007
Location: Aurora, IL
Posts: 5,005
Send a message via Yahoo to yellow69RS
Re: 69 coupe sb powerglide trans shifter backup light switch

Steve, it sounds like you have elimnated two of the three in my post leaving bad sockets.
The sockets may not make contact with the bottom of the bulb or the side. If no contact on the side the ground is not complete thru the socket and if you put a test light to the basr of the bulb the test light will likely light and the bulb glow dim.

Jeff
yellow69RS is offline  
post #9 of 10 (permalink) Old Sep 20th, 09, 09:59 AM Thread Starter
Senior Tech
bigsteve
 
Join Date: Mar 2007
Location: massachusetts
Posts: 1,077
Re: 69 coupe sb powerglide trans shifter backup light switch

I just checked the ground in the trunk and it broke off the connector so I will repair that but I doubt thats the problem.

I put a test light to the dase of the socket and clipped the other end to the ground tab and had no light. I did the same thing to a working light and the test light lit up. I then ran the test light from the interior harness green wires to ground with the shifter in reverse and the light came on like it should. Also put test light from center socket and cliped it to harness ground bolt and nothing.

Last edited by bigsteve; Sep 20th, 09 at 02:15 PM.
bigsteve is offline  
post #10 of 10 (permalink) Old Sep 21st, 09, 02:46 PM Thread Starter
Senior Tech
bigsteve
 
Join Date: Mar 2007
Location: massachusetts
Posts: 1,077
Re: 69 coupe sb powerglide trans shifter backup light switch

Now when I attached a ground wire from the side ground terminal on the socket to a metal ground screw in the trunk the light work. I take it the black wire going to the sockets are corroded or something and not giving a good ground?
bigsteve is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome