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Here at Power Probe TeK, we would like to always fulfill our promise of Lifetime Tech Support. We receive calls every day about our Power Probe products, every once in a while, we get calls about problems with vehicles that technicians run into. I received a call a few months back, our customer called in using an ECT3000 (Short / Open Tracer) to track down a short to ground and wanted to verify the tools functionally. This customer was working on a 2016 Dodge Charger SRT HellCat with a 6.2 Supercharged Hemi. I Love this car and being a Chrysler Technician myself this came into the right person.
The concern that the customer called in for was the CEL (Check Engine Light) was on. The ECT3000 kept showing a short to ground at the CAC pump.
I asked if any codes were on the vehicle and he said a few codes. One stood out Code P023B it states: Charge Air Cooler Coolant Pump control circuit low also some U codes of communication failure.
Our customer said he had been going back and forth with a Chrysler Engineer for a few days now with this issue the going through the pages of the case the Chrysler engineer wrote: “PCM is driving the components too”. Going back to the code P023B I read the theory it said “The charge air cooler pump assembly monitors for internal systems circuit and performance failures. If a fault occurs the CAC pump module sends the fault information to the PCM through the dedicated LIN Bus”.
The tool was working as it should and found that the short was internal to the pump. I suggested it may be quite possible that the pump had an internal short. I recommend replacing it. I knew this would only fix part of the problem. We still had the U codes to address.
The Customer was a great sport for understanding what I was explaining to him. He agreed to order one and call me back once he has the pump was replaced. He was working on it, Friday we stay here until five-o-clock and I told him I would wait here until he got finished, so I could still be of assistance. As I was getting ready to leave I hadn’t heard from him, so I called him before I left for the weekend, but no answer. I was on my way out and I heard the phone ring, it was my customer and the pump was now working…YES!!! But I knew we still had the U codes. The first U code U02A9 stated: Lost communication with charge Air Cooler Coolant pump. I asked him to check all power, ground, the lin-bus, ASD control output along with all the fuses once more to just be safe. Since it was after five-o-clock I told him how to reach me if he had any problems come up. I remember being at the grocery store when I got a call. I asked what the problem was, he said it was a fuse (22) (10amp) that had blown. Once he replaced it and cleared all codes, that baby was running like the Hellcat it was meant to be Rawr!
Our Tech Support team is staffed with trained, experienced technicians. Technicians, by their very nature, like to fix problems. Most of the calls we receive are routine support for tools, tracking orders, arranging repairs, etc., but helping you is what is really satisfying to us. The fun calls are when we can help our customers solve their problems. We may be stuck behind our desks and not out under hoods every day, but we can assist you with whatever problem you are working on. Sometimes you just need another tech to confirm a reading, or need to know how to perform a certain test, or maybe your stuck and just need a fresh perspective. Call or email Power Probe Tek’s Tech Support Department at 1-800-655-3585 M-F 6:00 am to 5:00 pm PST or Support@pp-tek.com