Checking The Obd-Ii Codes. To reset the check engine light on a Jeep Grand Cherokee, you first need to check the OBD-II codes. Using an OBD-II scanner, locate the OBD-II port in the vehicle. Connect the scanner to the port and turn on the ignition without starting the engine. Follow the scanner’s instructions to retrieve the codes. It will require a little elbow grease, but once you have the battery disconnected, leave it out for about fifteen minutes. You will then need to put your key into the ignition and turn it to the “on” position about three times. Ideally, this will clear the data, turning off the light. You can then reconnect the battery and turn the ignition on. I recently pulled a few codes after the engine light came on, but didn't reset it at the auto parts store. Of the 4 codes, the one common recommendation was to just tighten the gas cap (4 EVAP codes). how to reset check engine light. May 25, 2011 at 08:10 AM about the 2007 Chevrolet HHR LS FWD. Question type: Maintenance & Repair. 6 Answers. Report. buccaneerz89 answered 12 years ago. Either use a scan tool from your local parts store, or just disconnect you negative battery terminal for about 5 minutes. 20 people found this helpful. If the check engine light doesn’t go away after trying the above solutions, you can manually reset the check engine light. One way to do it includes disconnecting the positive battery terminal for 15-20 minutes and then reconnecting it. This method will erase the fault codes causing the CEL to illuminate, making the light go off.
A loose gas cap makes the check engine light come on. With the check engine light on, cars are made to work in limp mode. This mode effectively decreases the overall performance of the car but with a tightened gas cap, you have increased performance. 4. Prevents Gunk from Getting into the Fuel Tank
Store codes or write them down. Research the codes and what could be causing the problem in your VW. Reconnect the scanner [2] and select Clear Codes to reset the VW engine light. Turn the ignition off and wait for several seconds. Turn the engine on and check to ensure the check engine light is off.
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    • how to reset check engine light