by Marc Lucas
Your Dodge Grand Caravan, like all vehicles built after 1996, has an on-board diagnostic system. When one of your Grand Caravan’s sensors indicates that a system is not working properly, it will activate the vehicle’s “check engine” light. Sometimes the cause of the error can be as simple as tightening a loose gas cap. To verify that the cause of the problem has been fixed, it will be necessary to restart your Grand Caravan’s computer. This process is simple and takes less than 10 minutes.
Pull the hood release lever under the dash to open the hood.
Locate the hood latch under the center of the hood and push the latch to the left. Raise the hood and open it fully.
Locate the battery in the driver’s side of the engine compartment above the front wheel.
Loosen the bolt on the negative battery cable with the adjustable wrench.
Remove the negative battery cable from the terminal post. If it does not come loose easily, you may need to rotate the end of the wire from side to side until the end of the wire comes free from the post.
Reconnect the end of the negative battery cable to the negative battery post by pressing it firmly against the post.
Tighten the bolt on the negative battery cable until you cannot move the cable on the battery post.
Close the hood of the Grand Caravan.