Have Jeep Questions? Ask a Jeep Repair Expert for Answers
Hello and welcome! My name is ***** ***** I would like to assist you with your question. Would that be OK or would you rather wait until Richard comes on line?
Ok, I would love to help you out! This will be easier than you think. With the starter relay removed, have an assistant hold the key in the CRANK position while you check for two powers going into the female pins of the starter relay. One power comes from fuse 8. It is a 40 amp fuse in the power distribution center under the hood. The other power to the relay comes from the ignition switch and then goes through the 20 amp AT fuse before coming to the starter relay.
If that checks out good and those tests pass, then yes, you are correct. Chances are there is no ground going to the starter relay. The ground comes from the park nuetral position switch when the transmission is in park or nuetral.
Here is a wiring diagram of this circuit.
And here is a picture of the park nuetral position switch.
I am glad I can help! Please dont forget to honor your good faith deposit by rating my answer as "excellent service" for assisting you today.
It has been a pleasure working with you!
Good morning! YES, the PNP switch is the same thing as the nuetral position swith. The diagram is a picture of the transmission with the transmission pan removed. I will see if I can get you another picture.
I cannot seem to find a picture.. however, this switch is located on the left side of the transmission
YES, you would just ground the wire going to the PNP switch and see if the engine will then start
Hello! If there are two powers going to the starter relay pins or cavities with the key in the crank position, all of the fuses for the starting circuit are good. That is why I am having you check this.
In addition, I am not telling you what is wrong with the vehicle.. because I am not there doing the testing myself. I am telling you how to diagnose it so that you can pinpoint the problem.
Right now, we dont know if the PNP switch is bad... hence the testing we need to do to get us to that point. Does that make sense?
Are you sure you are looking in the power distribution center under the hood?
If so, then something is not adding up. According to the information you gave me, that is the correct wiring diagram. But again, I would not be too concerned about it as long as there is two female pins at the starter relay with the key in the crank position. That is the important part.
Hello! Do you see the wiring diagram I have attached? The brown/light blue wire is the wire coming from the PNP switch. Again, all you need to do is disconnect this connector going to the PNP switch and ground this wire and see if the engine will start. If so, then you have verfied all of the other wiring in this circuit as working good or OK. That would only leave the PNP switch provided there is no internal transmission problems.
To do this, just run a jumper wire from this brown/light blue wire to ground. You could run it to battery ground or the side of the transmission case as this should be ground.
By the way, it would be fuse number 6 in your PDC. It is labled starter.
Now my wiring diagram could be wrong. If you send me your VIN, I will double check for you.
Sounds good, I am out running around now. Will check back with you a little later today.
Hello and sorry for the delay! I just got home. I did some more checking and found out that my wiring diagram I sent you was in fact wrong. Let me post the correct wiring diagram. This one seems to match up more with your vehicle.
Click on the link and you will see fuse number 6 is the one that powers up the starter relay. Not fuse 8 as in the other wiring diagram I sent you.
So sorry about that. Now everything is making sense and matching up to your pictures you sent me
Let me know when you are back on line and we can continue.
Maybe we should talk on the phone. That would be easier