Will not start

Welcome to 2CarPros.

Does the starter engage when you try to start the vehicle? Have you confirmed that the battery is good and not weak? Take a look through these links. It shows how to load test the battery. Also, make sure the battery terminals are both clean and tight.

https://www.2carpros.com/articles/everything-goes-dead-when-engine-is-cranked

https://www.2carpros.com/articles/car-battery-load-test

Now, if the battery is good and the starter doesn't engage, I recommend testing the starter relay. It is located on the under hood fuse / relay box. It is item 31 in the relay box. See pictures 1 and 2.

You have two ways of testing the relay. First, locate another relay in the box with the same part number and switch them to see if that makes a difference. Or, follow this link that explains how to test a relay.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Here are a few general links which you may find helpful.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

https://www.2carpros.com/articles/how-to-use-a-voltmeter

https://www.2carpros.com/articles/how-to-check-wiring

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If the starter does engage but the engine fails to start, take a look through this link and let me know any of the specifics.

https://www.2carpros.com/articles/car-cranks-but-wont-start

Let me know if this helps or if you have other questions. Also, you didn't indicate an engine size. The attached pictures are related to a 3.5L V6. If that is incorrect, let me know. Also, the lid of the relay box should have a legend listed on it.

Take care,
Joe