Topic: '71 back-up lights stopped working
in Forum: C3 Electrical
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Hello All,
My back-up lights have decided to stop working. Bulbs appear to be fine. Where's the best place to begin looking for the problem? I've wiggled & giggled the gear shifter but no obvious short found there. Thanks in advance for the advice!
~ Joe
My back-up lights have decided to stop working. Bulbs appear to be fine. Where's the best place to begin looking for the problem? I've wiggled & giggled the gear shifter but no obvious short found there. Thanks in advance for the advice!

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moro, IL - USA
Joined: 2/11/2002
Posts: 406
Vette(s): 1979 Black coupe. 11256 original, documented, miles on it when I bought it in April of 2000. It now has 13100 on it. Oyster interior, like new. Everything original, everything works, except the clock. Paint has a couple of minor flaws.
|QUOTE|fun71 said: Hello All,
My back-up lights have decided to stop working. Bulbs appear to be fine. Where's the best place to begin looking for the problem? I've wiggled & giggled the gear shifter but no obvious short found there. Thanks in advance for the advice!
~ Joe|/QUOTE|
Joe,
The switch for the back up lights is inside the console, on the passenger side of the gearshift. If you take out the passenger side seat, there is only 3 screws holding the side of the console on. You might be able to see if the wire is off, or check to see if you have power in there. i won't guarentee that you can get to everything by just taking off one side, but you might get lucky.

Evidently I made a mistake. My switch is inside the console. 71's must be different.
|UPDATED|8/20/2002 11:49:10 PM|/UPDATED|
My back-up lights have decided to stop working. Bulbs appear to be fine. Where's the best place to begin looking for the problem? I've wiggled & giggled the gear shifter but no obvious short found there. Thanks in advance for the advice!

Joe,
The switch for the back up lights is inside the console, on the passenger side of the gearshift. If you take out the passenger side seat, there is only 3 screws holding the side of the console on. You might be able to see if the wire is off, or check to see if you have power in there. i won't guarentee that you can get to everything by just taking off one side, but you might get lucky.

Evidently I made a mistake. My switch is inside the console. 71's must be different.

|UPDATED|8/20/2002 11:49:10 PM|/UPDATED|
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Former Member
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Castle Rock, CO - USA
Joined: 4/21/2002
Posts: 179
Vette(s): 1973 T-Top
1993 Coupe
Hi Joe,
The Switch for the backup lights is on the transmission.
If you have a four speed, the switch is activated by the reverse linkage bellcrank via a small link to the switch on the drivers side of the tranny. It is common for the small linkage to lose a keeper and dangle from the bell crank or switch. It is also possible the wire has broken, most commonly at the switch at the solder joint. The wire is actually a pair. Green and black as I remember. There is a connection in the engine compartment that may have come loose, follow it from the tranny up. Rarely the switch is bad. Usually it falls apart before it fails internally but a simple continuity check should verify that.
If you have an automatic, the switch is internal to the tranny. It is the only electrical lead on the tranny but I cannot remember which side. The lead is most commonly the bad item. It is a little harder to verify the switch as it is activated by hydrolic pressure. Best to have a helper and LONG leads to your test meter.
Both switches are "gound side" meaning the test should be for continuity not power.
Alex
The Switch for the backup lights is on the transmission.
If you have a four speed, the switch is activated by the reverse linkage bellcrank via a small link to the switch on the drivers side of the tranny. It is common for the small linkage to lose a keeper and dangle from the bell crank or switch. It is also possible the wire has broken, most commonly at the switch at the solder joint. The wire is actually a pair. Green and black as I remember. There is a connection in the engine compartment that may have come loose, follow it from the tranny up. Rarely the switch is bad. Usually it falls apart before it fails internally but a simple continuity check should verify that.
If you have an automatic, the switch is internal to the tranny. It is the only electrical lead on the tranny but I cannot remember which side. The lead is most commonly the bad item. It is a little harder to verify the switch as it is activated by hydrolic pressure. Best to have a helper and LONG leads to your test meter.
Both switches are "gound side" meaning the test should be for continuity not power.
Alex

Wow!
Now that's what I call an answer! I need to set aside some time to work on this but you can rest assured that I'll have a copy of that post by my side when I do!
~ Joe
Now that's what I call an answer! I need to set aside some time to work on this but you can rest assured that I'll have a copy of that post by my side when I do!

~ Joe

in Forum: C3 Electrical
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