# 93 mustang

**URL:** <https://community.cartalk.com/t/93-mustang/26851>\
**Category:** Maintenance/Repairs\
**Created:** [February 23, 2009, 1:55am UTC](https://community.cartalk.com/t/93-mustang/26851 "2009-02-23T01:55:32Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![bob\_cumbers](https://avatars.discourse-cdn.com/v4/letter/b/90db22/32.png) [@bob\_cumbers](https://community.cartalk.com/u/bob_cumbers)\
**Post date:** [February 23, 2009, 1:55am UTC](https://community.cartalk.com/t/93-mustang/26851/1 "2009-02-23T01:55:32Z")

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My 93 mustang low beams flash on and off every 5 to 10 seconds after warming up. if it is a fuse, where would it be located?  
  
 this is a 4 cyl.

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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:** [February 23, 2009, 12:13pm UTC](https://community.cartalk.com/t/93-mustang/26851/2 "2009-02-23T12:13:11Z")

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Do both sides do it? Are they turned on, as opposed to them turning themselves on? My guess is a relay not a fuse. In fact if it were a fuse, you would need to replace the fuse each time. It could be a automatic resetting thermal breaker, but my money is on a relay or a connector somewhere along the line, maybe even a problem on the ground side.