# Lights

**URL:** <https://community.cartalk.com/t/lights/37113>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet, s-10, lights\
**Created:** [September 25, 2009, 2:11am UTC](https://community.cartalk.com/t/lights/37113 "2009-09-25T02:11:45Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Anderson](https://avatars.discourse-cdn.com/v4/letter/a/85f322/32.png) [@Anderson](https://community.cartalk.com/u/Anderson)\
**Post date:** [September 25, 2009, 2:11am UTC](https://community.cartalk.com/t/lights/37113/1 "2009-09-25T02:11:45Z")

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in the dark when the light senser turns on the lights, when I use the left turn signal the flasher is real fast and the backup lights blink. This is only in the dark during the day when the senser is off the turn signal works fine.  
  
 Thanks  
  
 Anderson

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**Author:** ![Joseph\_E\_Meehan](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/joseph_e_meehan/32/21_2.png) [@Joseph\_E\_Meehan](https://community.cartalk.com/u/Joseph_E_Meehan)\
**Post date:** [September 25, 2009, 10:23am UTC](https://community.cartalk.com/t/lights/37113/2 "2009-09-25T10:23:36Z")

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Replace the left back turn signal lamp. Easy fix.

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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:** [September 25, 2009, 1:04pm UTC](https://community.cartalk.com/t/lights/37113/3 "2009-09-25T13:04:41Z")

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It doesn’t sound like a filament to filament short to me. It sounds like you have a bad ground on your left rear light assembly.