# '86 Nissan Hardbody Pickup Warning Lights Malfunction

**URL:** <https://community.cartalk.com/t/86-nissan-hardbody-pickup-warning-lights-malfunction/76201>\
**Category:** Maintenance/Repairs\
**Tags:** nissan\
**Created:** [December 17, 2012, 9:48pm UTC](https://community.cartalk.com/t/86-nissan-hardbody-pickup-warning-lights-malfunction/76201 "2012-12-17T21:48:26Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![VG30Pauly](https://avatars.discourse-cdn.com/v4/letter/v/e274bd/32.png) [@VG30Pauly](https://community.cartalk.com/u/VG30Pauly)\
**Post date:** [December 17, 2012, 9:48pm UTC](https://community.cartalk.com/t/86-nissan-hardbody-pickup-warning-lights-malfunction/76201/1 "2012-12-17T21:48:26Z")

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After starting my truck the dash warning lights (oil, battery, brake, low fuel) stay lit and flicker for 20-30 seconds then go out with the exception of the battery light. It remains dimly lit for 2-3 minutes before finally going out. The battery and alternator have tested OK. I cleaned the battery ground connections and  
replaced the check light relay. Still the same situation. Any suggestions? Paul Halesworth

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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:** [December 17, 2012, 10:17pm UTC](https://community.cartalk.com/t/86-nissan-hardbody-pickup-warning-lights-malfunction/76201/2 "2012-12-17T22:17:55Z")

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If there is a external voltage regulator then that could be causing the issue otherwise, the alternator is most likely causing the trouble, even though it checks good on the bench.