How to reset the OBD check Engine Light of a Chevrolet Lumina

The Chevrolet Lumina was manufactured by General Motors in 1990 and ran until 2001. This model had two different OBD (on-board diagnostic) systems.
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* Obd
* Obd2
* OBD 2
* OBD Diag

* Automotive

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Dec. 16, 2011 - PRLog -- The Chevrolet Lumina was manufactured by General Motors in 1990 and ran until 2001. This model had two different OBD (on-board diagnostic) systems. The model before 1996, OBD was integrated to help detect check engine codes. The model after 1996, the OBD 2 phase standardized and simplified the troubleshooting system. There is different procedure to reset the check engine light on each OBD and OBD 2 system. Remember that resetting the light does not repair your Lumina. You should diagnose why the light comes on and troubleshoot the problem or it will simply come back on once the IM monitors of the computer retests itself.
You'll need Box-end wrench set and OBD 2 code reader and reset tool.
OBD: For the model of 1990-1994 Chevrolet Lumina
Step 1: Open the hood of the Chevrolet Lumina.
Step 2: Put the negative battery terminal on the battery. This has a black wire and is identified by a negative "-" stamped on the battery housing.
Step 3: Unplug the negative battery terminal using a box-end wrench and isolate it so it does not come back into contact with the negative battery post.
Step 4: Leave the negative battery terminal disconnected for about 12 minutes. Connect the negative battery terminal again and make sure the service engine soon or check engine light by launching the car.
OBD 2: For the model of 1995-2001 Chevrolet Lumina.
Step 1: Put the diagnostic link connector (DLC) under the driver's side instrument panel. Insert the OBD 2 code reader and reset tool into the DLC. The battery of the Lumina will activate the scan tool, so no on or off button is required. But some other scanner may not be activating automatic, it depends on the tool.
Step 2: Use the OBD 2 tool buttons and screen to scroll through the command items. While there are different tools with deferent buttons, operating the tool is fairly standardized. Most employ up and down scroll buttons to select different options displayed on the screen. Use the buttons to scroll to "Erase Codes" or similar button.
Step 3: Press the "Enter" or "Send" key on the tool. The display will notice you that it is sending the information to the computer. Wait until "Command Sent" or the default screen appears on the screen display of the tool.
Step 4: Launch the Lumina and check to make sure the check engine light is off. Disconnect the scan tool from the DLC.
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