No Start? Battery cranks starter, fuel gauge goes to 1/2 when key is on?

Hi,

I didn't realize the immobilizer was flashing or staying on. To reset the immobilizer/smart key requires a scan tool that has the correct programming specific to this vehicle.

Is that something you have or have access to?

Let me know.

Joe

Hi,

The tools that can perform this are very expensive. By chance, do you have anyone that can scan the can-bus? That will provide diagnostic trouble codes regardless of the module storing them.

Here is a link that explains how to test the can-bus:

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Let me know.

Joe

Hi,

I had a feeling it was going to be expensive. The only way I know to determine the source of the problem is by scanning the can-bus. If we get codes, then we have the means to pinpoint an issue or at least a direction to go. Without that, it becomes a guessing game.

Let me know. I wish I had a better answer. From experience, I've learned not to guess.

Please let me know if there is anything I can do to help.

Joe

Hi,

If you have to jump the relay to get power to the fuse, either we are not getting power to the primary side of the relay or the PCM isn't providing a ground path to the primary side.

Take a look at this link:

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

The power to the relay secondary side is from the fusible link box. See pic 1

Let me know.

Joe

See pic below.

Hi,

As far as testing the ECU, you would need a scan tool that can communicate directly with it. However, with the issue you are having, you should be able to tell if there is an issue with the ECU. It needs to provide a ground path to complete the relay primary circuit and engage the secondary. That is what I would suggest.

If you look at the link above that discusses how to test a relay, it explains how to do it.

Let me know what I can do to help.

Joe

Hi,

Just to confirm I understand. From the outside of the vehicle, you locked the door with the key. Then, reached in through an open window to open the door from the interior door handle, correct?

That is a tough one to answer. If the vehicle was locked, it should have set the alarm when the door opened. Did that happen?

Joe

The only thing I can think of would be if the key and immobilizer would need to be reset.

I have information on registering a new key, but to reset the original key, a scan tool is needed that can communicate with the ECM.

Did we try disconnecting the battery, tying the neg and pos battery cables together to drain any capacitors, and then seeing if that resets the system?

Joe