# Rear turn singal

**URL:** <https://community.cartalk.com/t/rear-turn-singal/47876>\
**Category:** Maintenance/Repairs\
**Tags:** sts, cadillac\
**Created:** [April 23, 2010, 5:35pm UTC](https://community.cartalk.com/t/rear-turn-singal/47876 "2010-04-23T17:35:08Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![giggaonefive](https://avatars.discourse-cdn.com/v4/letter/g/77aa72/32.png) [@giggaonefive](https://community.cartalk.com/u/giggaonefive)\
**Post date:** [April 23, 2010, 5:35pm UTC](https://community.cartalk.com/t/rear-turn-singal/47876/1 "2010-04-23T17:35:08Z")

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Right rear turn singal is showing dim when i activate it

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**Author:** ![missileman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/missileman/32/1366_2.png) [@missileman](https://community.cartalk.com/u/missileman)\
**Post date:** [April 23, 2010, 5:54pm UTC](https://community.cartalk.com/t/rear-turn-singal/47876/2 "2010-04-23T17:54:53Z")

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The turn signal indicator is dim or the bulb?

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**Author:** ![Roadrunner](https://avatars.discourse-cdn.com/v4/letter/r/d2c977/32.png) [@Roadrunner](https://community.cartalk.com/u/Roadrunner)\
**Post date:** [April 23, 2010, 6:00pm UTC](https://community.cartalk.com/t/rear-turn-singal/47876/3 "2010-04-23T18:00:51Z")

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You could have a poor ground in the bulb socket or just a bad bulb.

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**Author:** ![tardis](https://avatars.discourse-cdn.com/v4/letter/t/f0a364/32.png) [@tardis](https://community.cartalk.com/u/tardis)\
**Post date:** [April 23, 2010, 6:31pm UTC](https://community.cartalk.com/t/rear-turn-singal/47876/4 "2010-04-23T18:31:18Z")

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Or a bad socket.

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**Author:** ![ignoramus9](https://avatars.discourse-cdn.com/v4/letter/i/d07c76/32.png) [@ignoramus9](https://community.cartalk.com/u/ignoramus9)\
**Post date:** [April 23, 2010, 7:54pm UTC](https://community.cartalk.com/t/rear-turn-singal/47876/5 "2010-04-23T19:54:30Z")

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Time to remove the turn signal lense, pull out the bulb and check for rust/crud in the socket. It that is still nice and shiny, check the ground lead from the socket to the frame and see if it is rusty. Also, look at the filament in the bulb, as sometimes when one burns out, it will re-fuse but burn dim. Look at the little lead contact on the back of the bulb and see if it is dirty dull looking or gouged.

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**Author:** ![SteveF](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/stevef/32/2_2.png) [@SteveF](https://community.cartalk.com/u/SteveF)\
**Post date:** [April 23, 2010, 8:37pm UTC](https://community.cartalk.com/t/rear-turn-singal/47876/6 "2010-04-23T20:37:23Z")

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Swap left and right bulbs, see if this makes a difference. You will know whether the problem is due to the bulb or to socket/ground.