Chrysler Repair Questions? Ask a Mechanic for Answers ASAP
Hi, I'm Chad. Welcome to JustAnswer. I'm reviewing your question and I will be posting your reply ASAP.
you are completing the circuit plug the reader .
tell me what are you readings on the obdII plug pins , probe it from the rear of the plug
look behind the plug on the wires are they touching each other
Please let me know
ASE Certified Technician
i m going to open up the question for another expert to help you on it.
Hi There, This is Clay, I'm a certified master automobile technician with 30 years of automotive repair and diagnostic experience.
From your description most likely the ground to the Powertrain Control Module (PCM) is open/broken. Make sure the grounds at the negative battery terminal are secure. From the wires attached to the negative battery terminal make sure one grounds to the frame under the battery tray (very common place for failure), leaky batteries have a tendency for corroding this connection. The link below is the ground connection under the battery tray.
G100 Battery Ground Location
You can also use one jumper cable from the negative battery terminal to the frame to check this circuit. Another ground from the negative terminal is beside the transmission dipstick tube, this can be checked the same way with one jumper cable from the negative terminal to the engine block. Check these 2 connections, give them a good tug to make sure there is a good connection. Let me know if the vehicle will run without a tester plugged into the OBD2 connector.
What is happening is the OBD2 tester is completing a path to ground for the PCM circuit. If the grounds at the battery don't solve the problem(s) there could be problem(s) with the power and ground supplies at the PCM, we'll get to them later if need be.
I hope this information is helpful. If you have any questions let me know. You can reply back to me through this thread at any time.Let me know what all you find.Thanks.
I noticed you had viewed my answer, and I hope the information I gave was helpful. Let me know if you have followed through with my recommendations. There are several other powers and grounds for the PCM, I need to know if you found anything at the battery before proceeding to the powers and grounds to the PCM. If you have any questions, please let me know.
Let me know.Thanks