# Speedometer on 91 Corolla

**URL:** <https://community.cartalk.com/t/speedometer-on-91-corolla/2903>\
**Category:** Maintenance/Repairs\
**Tags:** corolla, speedometer\
**Created:** [August 10, 2007, 4:22pm UTC](https://community.cartalk.com/t/speedometer-on-91-corolla/2903 "2007-08-10T16:22:32Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![speedometer](https://avatars.discourse-cdn.com/v4/letter/s/ea5d25/32.png) [@speedometer](https://community.cartalk.com/u/speedometer)\
**Post date:** [August 10, 2007, 4:22pm UTC](https://community.cartalk.com/t/speedometer-on-91-corolla/2903/1 "2007-08-10T16:22:32Z")

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I’ve got a 91 Corolla with 44K (belonged to my parents in Florida). The speedometer stopped working, but the odometer is working fine. I’ve been told that I’ve got to replace a computer “chip” or processor. Anyone know if that makes sense?

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**Author:** ![mcparadise](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mcparadise/32/32_2.png) [@mcparadise](https://community.cartalk.com/u/mcparadise)\
**Post date:** [August 10, 2007, 4:38pm UTC](https://community.cartalk.com/t/speedometer-on-91-corolla/2903/2 "2007-08-10T16:38:46Z")

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If the car has a vehicle speed sensor (VSS), a new one might fix the problem. The speedometer is not connected to the car’s computer.

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**Author:** ![speedometer](https://avatars.discourse-cdn.com/v4/letter/s/ea5d25/32.png) [@speedometer](https://community.cartalk.com/u/speedometer)\
**Post date:** [August 10, 2007, 7:58pm UTC](https://community.cartalk.com/t/speedometer-on-91-corolla/2903/3 "2007-08-10T19:58:24Z")

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Thanks for the reply McParadise - would a 91 have a VSS? (never heard of that myself) How would I find out?

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**Author:** ![galant](https://avatars.discourse-cdn.com/v4/letter/g/77aa72/32.png) [@galant](https://community.cartalk.com/u/galant)\
**Post date:** [August 11, 2007, 6:11am UTC](https://community.cartalk.com/t/speedometer-on-91-corolla/2903/4 "2007-08-11T06:11:30Z")

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I might be wrong but on my '89 Corolla the speedo was mechanical. A cable from the top of the tranny goes to the Speedo unit. Disassembly of the unit is not that difficult. Look on [autozone.com](http://autozone.com) under vehicle specific repair guides, your car is listed and see if you can find the info. You might end up buying a recycled speedo. Look on [car-parts.com](http://car-parts.com). You have to be careful with state laws re speedo change esp if you ever plan to sell the car.