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Jim Grant Tech Tips Jim Grant Tech Tips
A collection of helpful articles based on reader submissions
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  Jim Grant's Tech TipsJim Grant's Tech Tips
Below is a collection of Jim Grant's Tech Tips sorted by Vehicle Make. These Tech Tips were answers to questions submitted to Jim by ALLDATAdiy.com users over the course of many years.
If you have any questions, please feel free to email us.
 
 

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  Jim Grant's Tech Tips

'94 Geo Prizm, ABS Diagnostics

Q: I've got a '94 Prizm and the ABS light stays on. This model differs from Corolla in that you supposedly can't retrieve the engine codes unless you bring the car to a shop with a computer code reader. Is there anyway to clear the codes so that I can try, by process of elimination, to repair it or is there a tool that I can buy to retrieve these myself?

- Jeff P.

A: I would first suggest checking all the fuses. There are 4 fuses that supply power to the ABS system. Only one is marked ABS the rest are supplies for other systems as well. Example the interior light and radio fuses also provide electrical power to the ABS system. From the information I have there is no way to extract the codes from the ABS computer in your vehicle except with a scan tool. Also you should know that there are several aftermarket scan tools that have the ability to retrieve the information you desire. The computer scan tools with ABS software are a bit pricey. My suggestion is to locate a shop that has the equipment to retrieve the ABS codes and ask them to do just that and that alone. Once you have this information you're better equipped to perform the repair. Using the process of elimination to repair your ABS system is just short of check book suicide. There are many components to the ABS system on your vehicle. It would be a shame to spend many hours and dollars if a $35 to $70 scan tool check would head you in the right direction the first time. Then there is another concern. Just how well do you understand, and what are your abilities to correctly service, an ABS system? There are a surprising number of repair facilities that will not perform ABS system service due to a lack of training. Hurting yourself is not a good thing, but injuring someone else, due to a lack of knowledge, is a bad thing. Be sure you know what you're getting into when working with computerized braking systems.

 
     
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