Crank no start?

Hi,

That makes sense. When you connect to the negative post, you are providing the ground path that isn't being provided by the ECM.

Let me know.

Joe

Hi Jerry, I can't guarantee it, but that sounds like where the problem is coming from. Keep in mind, the wire between the relay and the ECM could be open. The only way to check that is to check if there is continuity between the relay and the ECM. If you want to check that, I would have the ECM disconnected as well as the battery. That way there would be no interference.

Let me know what I can do to help.

Joe

Hi,

That makes sense. If the wiring is good, that is the likely cause. Is it the original ECM? Also, they are cooled via the air intake so make sure if you replace it, that it is properly together.

Let me know.

Joe

Jerry,

If it is a plug and play, already set up, you should be able to just install it. Did you find a new, old stock one or a remanufactured one online?

Joe

Hi,

Did it resolve the issue?

Joe

Jerry,

Wow, that is a tough one to answer. I'm not sure why they are different. What have they told you? Have all three been the same?

Let me know.

Joe

Let's go back to basics, please turn the ignition switch on and check all of the fuses, also while the switch is on check the positive side of the coil for power.

This guide can help:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Here are the engine and computer wiring diagrams so we can be on the same page and be able to see how the system works. Check out the images (below). Please upload pictures or videos in your response to the problem so we can see what's going on.

Code 42 - Auto Shutdown Relay Control Circuit: This code indicates a problem in the auto shutdown (ASD) relay circuit.

Code 45 - Turbo Boost Limit Exceeded (Chrysler vehicles with turbocharged engines)

Did you check the fuses and swap out the ASD relay?

There are fusible links near the battery, pull on them to see if they are connected. These are wires that burn up inside, you will need to replace them. Check out the images (below). Let us know how it goes.

The power to the coil comes from the auto shutdown relay, did you replace it? If so, I would swap out the ignition switch. Also, check the fusible links by the battery.