# Problem with electrical system

**URL:** <https://community.cartalk.com/t/problem-with-electrical-system/47273>\
**Category:** Maintenance/Repairs\
**Tags:** nissan, sentra, lights\
**Created:** [April 11, 2010, 1:28am UTC](https://community.cartalk.com/t/problem-with-electrical-system/47273 "2010-04-11T01:28:50Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![mercalb](https://avatars.discourse-cdn.com/v4/letter/m/76d3ee/32.png) [@mercalb](https://community.cartalk.com/u/mercalb)\
**Post date:** [April 11, 2010, 1:28am UTC](https://community.cartalk.com/t/problem-with-electrical-system/47273/1 "2010-04-11T01:28:50Z")

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Need help! Have no tail lights and no dashboard lights. All fuses under the dashboard look good. Have signals and hazards . Replaced Headlights and tail lights.

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**Author:** ![Triedaq](https://avatars.discourse-cdn.com/v4/letter/t/65b543/32.png) [@Triedaq](https://community.cartalk.com/u/Triedaq)\
**Post date:** [April 11, 2010, 2:27am UTC](https://community.cartalk.com/t/problem-with-electrical-system/47273/2 "2010-04-11T02:27:24Z")

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On many cars, the tail lights and the dash lights are on the same circuit protected by the same fuse. Check your owner’s manual for the correct fuse and replace it. You can’t always tell if a fuse is good by looking at it. If the new fuse blows right away, you have a short circuit someplace.

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**Author:** ![BadaBing2010](https://avatars.discourse-cdn.com/v4/letter/b/c0e974/32.png) [@BadaBing2010](https://community.cartalk.com/u/BadaBing2010)\
**Post date:** [April 11, 2010, 2:49am UTC](https://community.cartalk.com/t/problem-with-electrical-system/47273/3 "2010-04-11T02:49:38Z")

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I second T’s advice. You MUST replace the fuse (quite cheap). You can’t always tell if it is blown just by looking at it.

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**Author:** ![ok4450](https://avatars.discourse-cdn.com/v4/letter/o/e9bcb4/32.png) [@ok4450](https://community.cartalk.com/u/ok4450)\
**Post date:** [April 11, 2010, 3:08am UTC](https://community.cartalk.com/t/problem-with-electrical-system/47273/4 "2010-04-11T03:08:43Z")

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Sounds like a failed main lighting switch, or headlight switch if you will. The taillamps and dashlights usually operate off of a separate circuit in the switch.

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**Author:** ![Cougar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cougar/32/21348_2.png) [@Cougar](https://community.cartalk.com/u/Cougar)\
**Post date:** [April 11, 2010, 4:06am UTC](https://community.cartalk.com/t/problem-with-electrical-system/47273/5 "2010-04-11T04:06:54Z")

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Also look for a relay that may be bad going to the dash lights.