Why is my check engine light on in my Jeep Grand Cherokee?

Why is my check engine light on in my Jeep Grand Cherokee?

2020 Jeep Grand Cherokee Check Engine Light Flashing Other common reasons for a Check Engine Light are dirty mass airflow sensor, a malfunction with the fuel injection system, damaged oxygen sensor, faulty emissions control part, faulty head gasket, or defective spark plugs to name a few.

How do I reset the check engine light in a 2011 Jeep Grand Cherokee?

To turn off the Jeep Grand Cherokee check engine light, turn the ignition switch to ON but don’t start the vehicle. Press the gas pedal 3 times within 10 seconds and turn the ignition off. Wait 10 seconds and start the engine.

Why is my Jeep check engine light on?

Jeep Wrangler Check Engine Light Flashing Other common reasons for a Check Engine Light are faulty head gasket, a malfunction with the fuel injection system, dirty mass airflow sensor, faulty emissions control part, damaged oxygen sensor, or defective spark plugs to name a few.

What does the engine light look like on a Jeep Cherokee?

If the check engine light in your Jeep Cherokee starts flashing, that means that the problem needs sudden attention and your Jeep should be brought in today. This blinking light mostly indicates a scrupulous engine misfire allowing unused fuel to be deposited into the exhaust system.

How do I turn off the check engine light on my Jeep?

Resetting the Check Engine Light:

  1. Make sure the engine is not running and key is out of the ignition.
  2. Disconnect the battery terminals.
  3. Wait 5 minutes.
  4. Reconnect battery terminals.
  5. Insert and turn the ignition key to the run position without starting.
  6. All error codes are cleared and CHECK ENGINE icon disappeared.

What causes the Check Engine light to come on on a Jeep Grand Cherokee?

The check engine light on your Jeep Grand Cherokee will usually shut itself off if the issue or code that caused it to turn on is fixed. For example, if the cause of your check engine light coming on was a loose gas cap, if it’s tightened, the light will turn itself off.

How can I troubleshoot my Jeep Grand Cherokee?

A problem has to repeat itself several times before the Grand Cherokee’s On-Board Diagnostic system will give it a “fault” status. There are ways to troubleshoot the system, and that involves examining the fault codes.

What is the code for the Jeep Grand Cherokee?

For instance, code 41 will be represented by four flashes, a pause, and then one pause. Look up the Chrysler’s flash codes online (See References). Since the Grand Cherokee’s diagnostic system predates Environmental Protection Agency standardization, other manufacturer’s codes will not help.

Where is the diagnostic outlet on a Jeep Grand Cherokee?

How to do that depends on the year the Grand Cherokee was manufactured. Open the driver’s side door and plug your OBD-II scanner’s cable into the Grand Cherokee’s diagnostic outlet. This Data Link Connection will be located on the driver’s sidde of the Jeep, beneath the steering wheel, somewhere between the left kick a panel and the gas pedal.