tailight stop light issues
Thread Starter
3rd Gear
Joined: Mar 2022
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tailight stop light issues
hello all i have some issues on 69 corvette when i put on tailights i have one rh side stoplight comes on without pressing brake pedal ,when i press brake pedal lh side is dim but rh side seems stuck on,when tailights off it goes off too but stoplights very dim when brake pedal pressed
Race Director
Joined: May 2006
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hello all i have some issues on 69 corvette when i put on tailights i have one rh side stoplight comes on without pressing brake pedal ,when i press brake pedal lh side is dim but rh side seems stuck on,when tailights off it goes off too but stoplights very dim when brake pedal pressed
It has two pins and it is possible to reverse the bulb causing the brake filament to come on when the lights are turned on.
the other possiblity is bad ground connection.
Instructor
Joined: Nov 2020
Posts: 139
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From: Colorado Springs
Ground?
Check the resistance from inside the socket to the ground lug on the left side of the rear crossmember (for a 78 that is). My 78 was doing weird things like yours. Found a corroded mechanical ground connection inside the socket itself. Spliced in 2 new sockets and all good now
Thread Starter
3rd Gear
Joined: Mar 2022
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i had a go at it today looks like someone before me had a play i reversed the 2 wires going into bulb socket basically swapped them over no more stuck stoplight,i have tailights working but only one stop light lh and lh turn signal.
no stoplight at rh ,will look at wiring at rear cross-member tmrw or sat
no stoplight at rh ,will look at wiring at rear cross-member tmrw or sat
Le Mans Master
Joined: Aug 2006
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From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
Hi and welcome
You may have a bad ground in the bulb socket. After checking that the 1157 bulbs are installed correctly, attach a wire to a good ground and touch the other end of the wire to the brass part of the socket.
Thread Starter
3rd Gear
Joined: Mar 2022
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ground wire is good ,i think someone fitted the 2 prongs that connects to bulbs wrong way around hence my stoplight on with tailight, i flipped the wires stoplight no longer comes on with the tailight i will investigate some more
