Table of Contents
How do you clear the codes on a GMC Sierra?
Hold the negative battery clamp and wait for one minute. This waiting period will clear the computer’s codes.
How do you clear the codes on a Chevy truck?
How to Clear Codes on a Chevy Silverado
- Locate the data link connector (DLC) port that is the same size and shape as the OBD scan tool’s connective end.
- Plug the handheld scan tool into this port.
- Wait for the scan tool to retrieve the codes, then press “Erase Codes.”
How do you reset the computer on a GMC Sierra?
How to Clear a GMC ECM
- Loosen the bolt on the black battery cable until the connector opens enough to come off the battery stud.
- Turn the headlights on for several seconds to use up any stored power, then return them to the “off” position.
How do I clear stored engine codes?
Turn your ignition switch to “On.” Turn off all accessories. Press the “Read” button on your scan tool to view the engine’s error codes. Remember the code or codes in the order they were received for future repairs if necessary. Press the “Erase” button on your scanner to clear the error code.
How do you reset the check engine light on a GM?
Steps to Reset Check Engine Light
- Turn off the ignition and put on safety glasses and gloves.
- Locate the negative terminal on your car battery.
- Loosen the nut on the negative terminal with a wrench and pull the negative connector from the battery.
- Reconnect the negative cable and tighten it with your wrench.
How do I reset my Chevy computer?
Remove the nut off the negative battery cable with a socket set or wrench. Slide the cable off of the battery and put it aside. Turn the headlight switch to the “on” position to drain the ecm of any remaining power. Wait at least 10 minutes, then turn it back to the “off” position.
How do you clear a check engine light code?
Simply place your key into the ignition and turn it on for 1-2 seconds, then turn it off for 1-2 seconds. Repeat this step three or four times. If the check engine light remains after the reset, you might still have a problem with your vehicle.
How do I clear a GM diagnostic code?
Diagnostic trouble codes may be cleared by disconnecting the battery ground cable for at least 20 seconds. Reconnect negative battery cable and recheck codes to confirm the repair.
Where is the trouble code on a GMC?
These are listed in numerical order for easy searching. When retrieving GMC trouble codes with an OBD II scan tool, proceed as follows: 1. Connect scan tool to the 16-pin data link connector (DLC) located underneath the steering column. The connector may have a removable cover. 2. Turn the ignition on. 3.
Where is the DLC outlet on a 1997 Chevy truck?
All 1997 Chevy truck models positioned the DLC on the lower side of the dashboard to the left of the steering column. Attach the trapezoid-shaped plug of the pocket scanner to the DLC outlet. Because of its shape, there is only one proper way to connect the plug to the DLC.
Where do I find the DTC code on my BMW?
Connect scan tool to the 16-pin data link connector (DLC) located underneath the steering column. The connector may have a removable cover. 2. Turn the ignition on. 3. Follow scan tool manufacturer’s operating instructions to access the Diagnostic Trouble Codes (DTC’s).