Wednesday, May 21, 2014
How to Reset the Computer on a 1992 GMC Jimmy
Starting in the late 1970s, vehicles were equipped with on-board computers that were specific to each vehicle. This often meant a trip to the dealership service center for diagnosis and computer resets. The 1992 GMC Jimmy was no exception. A GM-specific computer scan tool must be used to read and clear codes as well as reset the computer. In 1996, the second phase of on-board diagnostics standardized the equipment needed to perform this task so most all repair stations could do this for every type of later model vehicle.
Instructions
- 1
Open the hood of your 1992 GMC Jimmy.
2Remove the black, negative battery terminal bolt from the batterys side post with an 8 mm box-end wrench turned counterclockwise.
3Detach the red, positive battery terminal bolt from the batterys side post with the wrench.
4Turn on the headlight switch inside the passenger cab to discharge any stored voltage in the capacitor. Wait five to 10 minutes.
5Reconnect the red, positive battery terminal bolt to the batterys side post first and tighten it with the wrench.
6Reattach the black, negative battery terminal bolt to the batterys side post and tighten it with the wrench.
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