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WL 2022 GC - Power Steering & Electrical Gremlins

31K views 78 replies 22 participants last post by  voxel  
Well, good news! They feel confident they found the issue and have addressed it. I picked the GC up yesterday afternoon. The tech was able to replicate the problem on short drives in the parking lot and around the dealership which helped with their trouble shooting. Here is a condensed version of the description off the invoice.

Perform DTC Inspection - Verified concern, found multiple loss of communication faults in the system, traced root cause to faults U110a and U0131. Performed diagnostic procedures. Per the fault diagnostics started by checking connector connections and pin ends. Checking C1 and C2 connections along w corresponding pin ends. All check good. Opened Star Engineering case. Was given main wiring connections in the front end of the vehicle to inspect. Those checked good. Test drove vehicle in a controlled area and vehicle died out while test driving. With the tech seeing what was actively happening, tech decided to start by checking / load testing the batteries. Both failed. Removed and replaced both batteries. While replacing batteries, checked ground connections. Found main ground to vehicle and IBS not seated fully, then found routing of the cable routed incorrectly (this created unnecessary tension on the connection) Removed ground cable and routed correctly. Made sure ground cable was securely mounted on ground post. Reassembled, cleared codes, tested, all ok.

See pics below from service manager:

Cables before their inspection, INCORRECTLY routed
View attachment 249879

Cables after inspection, CORRECTLY routed per Service Manager / Technician
View attachment 249880
Great Post - Unfortunate but at least they found the issue - Good Luck moving forward ✌
 
It’s crazy how much more complex vehicles have become these days. I’m hopeful the root cause of the issue has been found. I’m just happy I got lucky and was able to get the steering wheel unlocked and drove it about 50 miles back to the dealership by my home without incident and avoided a tow. Glad it happened to me and not my wife.
Agreed - Simply way too complicated - You know we are in trouble when you can’t even check the actual radiator without removing the lovely skirt that closes everything up in the engine bay - They don’t want us touching these vehicles and they are impossible to self service. ✌
 
That is so true. Probably 90% of the controls in an automobile are controlled by ground. All these systems are sensitive to any of the conditions you stated.

These vehicles are so complicated because people tend to be lazy and don't want to do things manually, so they add all of these "features" to make life easier but that comes at a cost of complexity.
How True it is - Great Post👍
 
Anecdotally, that did not appear to be the case with the previous generation JGC for the ten year run. Many folks got 5-6-7 years on the OEM battery and being inside the cabin didn't hurt, either.
Agreed - I am one of them and still have my 2011 JGC Hemi 5.7L Limited - Original battery was replaced in
2018 - Dealer replaced it for me at No Charge - 2nd OEM replacement battery is still going strong.
Fun Fact - You can also check your radiator since the cap is accessible without the protective shroud closing up the engine bay like the WL’s.
Much simpler vehicle, fairly easy to service and all around has been a fantastic vehicle - 205K miles plus and still going strong as my daily driver👍
Every time I drive my 2022 WL74 SR Hemi it makes me anxious with all this new tech - I guess it has its advantages, however it’s “Glitchy” for sure, but so far I can’t complain however I only have 1900 miles on the vehicle after one year.🫤
 
Yeah these new vehicles are definitely not DIY friendly.
There have been a few threads here when replacing the batteries the OP'er accidentally shorted those under seat battery's wiring to ground blowing the fuse and worse.

2 batteries + under the seat + replacement + tight work area = DIY PITA
100% Agreed - They don’t want these newer vehicles self serviced - As I stated before you can’t even truly check the radiator without removing the shroud covering the entire front engine bay / Sure looks nice but ends there. ✌