Can we solve this WJ's Electrical Faults? Mice distract us - the cause was simpler than expected!
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- čas přidán 3. 08. 2024
- In this video we'll take you along as we troubleshoot a serious electrical gremlin on this 2004 Jeep Grand Cherokee WJ. On this truck, several items were failing - ABS light, Airbag light, brake light, no speedometer, no HVAC, no heated seats, no turn signals/multi-fuction switch, the list goes on!
When we got this WJ it had the issue, and it also had many mouse remnants. Nests, mouse crap, a half-eaten seatbelt, and more. Plus, a prior shop fired the parts cannon, replacing the main junction block/BCM.
This video is a great journey to find the fix - but it was simpler than we expected. A great lesson to look for the quick fix, but don't get caught up in what you see or what other shops did. Follow your diagnostic steps! Had I done that, I would have found the issue faster!
CHAPTERS:
00:00 Intro
00:40 Flasher Unit
01:38 Planning our Attack
02:23 Scanning Codes
04:40 Bulkhead Connector
08:32 Door Wires
09:28 More Dash Wiring Checks
16:00 Some New Data - Service Data
22:52 Remove the center console - Grounds
24:53 Checking Grounds G200 and G201
30:42 Quick check of the clockspring
32:01 Probing the AZC Wiring
36:20 Fuse 20 to AZC Wiring Check
37:14 Finding the culprit - we think!
40:19 Confirmation - Issue Identified!
42:46 Conclusion of Part 1 - Auta a dopravní prostředky
EXACT Problem I had. I did about 1/2 the work you did then found this video. You just saved me bunch of time!!!!
Thank you!
Chrysler products of the 90's and 00's had the best sounding warning chimes!
Good diagnosis. Thank you! Looking forward to pt 2
Thanks!!
Searching for electric faults is tricky. Work well done and a real pleasure to watch.
Thank you!
Those mice got tired of their hotel leaving... Sabotage to the ignition switch!
Amaziiiiiing job.
Thank's
watching this in March of 2024. Our 2002 Grand Cherokee is having Many wiring issues... on trouble shooting myself I made some issues myself that we didn't have before. I caused wire breaks in the driver's door stopping almost all functions in the driver's door. ( I have put a band aid temp. on those. ) on to the current issues: ( keep in mind the radio screen has died, and the Air bag light is always on ) OK, we can be driving and get a "flame out" and just stops running . It will re-fire and temporarily run for a while. The dilemma is what it would cost to troubleshoot the issues vs. what the vehicle is worth.. I can add that we do have a lot of "slop" in the key, and can actually pull out the key in any position...
My 04 has the seatbelt as well.
Seat belt is a collision anchor.
I have a DRB3 and even then it's sort of hard to know what data to trust. I have a wj in the shop with a dead PCM. Bus diagnostics on drb are labeled as CCD, but the vehicle has PCI bus.. so I threw out my original diagnosis because I didn't trust the data. Spent hrs going back through the test to come back to the same conclusion.. PCM inactive. Found no power from fuse 12 in interior pdc to PCM/TCM/ASD/fp.
My maxisys ultra has the ability to graph pin 2 PCI data, so I would say no single scanner has it all.
Do you recommend that Foxwell scanner for the WJ? Ive been looking into the NT510 Elite for my WJ.
Does your foxwell read abs codes? Trying to diagnose my abs light on my 2000
Sorry it took a bit to reply, but I hadn't used this Foxwell on a WJ before so today I gave it a try - and yes, it does appear to work to pull ABS data. To help show what it can do, I made a quick video in response - czcams.com/video/_eQwNn7TGcU/video.html
Also noted in this video's description, there's a possible alternative also via WJ Diag, while not made for V8 WJs, it apparently can access ABS data as well. May be a tad clunky, and requires and android device and an OBD2 bluetooth dongle, but it is a cheaper alternative that may work. See here: www.jeepforum.com/threads/wjdiag-pro-wj-scan-tool-app-for-android-it-works.4418263/
@@VortexGarage EXCELLENT! thank you.
Your videos have been invaluable in helping me with my WJ. Thank you
Nothing comes close to the DRB3 and if you ever priced one, you will understand. The scan tools that you don't want are mostly anything new. The OTC Genisys plays well with the WJ. Other then that look at scan tools the were the "it thing" in the WJ area. Like the Snap-on red brick.
I was recently at my local dealer and they had an old drb3. It has a loud fan and they barely remember how to use it. I was trying to buy it off em but they said they didn't want to give it up because not many dealerships still have one. I'm not giving up 😂.
Either way I have heard the old Snap ons were pretty good with em. I may look around for one. Fortunately I've made it through many wjs without one but there are some features that would be nice to be able to do. Esp if my local dealer can't use their drb3 anymore...
@@VortexGarage The fan is really loud on my DRB3 as well. I bought mine 15 years ago for my 96ZJ. It was a one off year for the under dash mounted ABS module. Nothing other then the DRB3 wanted to communicate with it.
Oh and no CAN-bus on this old beast. PCI-bus is what you will find.
I always forget it's PCI even after reading it in the svc manual - thanks!!