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How to Reset Codes for the 2002 Chevy Tahoe

Todays vehicles use computers to monitor the functions of the vehicle. The 2002 Tahoes computer receives and stores trouble codes that, when read, will help you pinpoint the exact malfunction. After having the codes read and the vehicle serviced or repaired, you will need to reset the codes. If you dont want to spend the money on an OBD-II scan tool, you can make the adjustment from home using and adjustable wrench.

Instructions

1

Park the vehicle and turn off the ignition. Pop up and secure the vehicles hood and find the battery.

2

Loosen the nut on the negative battery cable with the adjustable wrench. The negative cable is black and marked with a "-" sign. Slip the clamp off of the negative battery terminal and do not to let it touch anything metal, especially the positive battery terminal.

3

Wait 30 minutes while the Tahoes computer resets.

4

Put the negative battery cable back in place and tighten the nut with the adjustable wrench.

5

Put the key into the ignition and start the vehicles engine. Verify all warning and service lights have shut off. Drive the vehicle. It will take a few trips for the computer to reset and get in sync with all of the vehicles functions.