A whole lota yellow lights on.....

[bcbender]

Well I knew one day it'd be my turn... I drove my truck a few weeks ago, was out of town on business, came back and bam.... everything is unhappy. Started by a "remote start canceled" I assumed it was because the DEF was low and light on... but then the chimes came... Service 4WD.. 4WD unavailable, followed by Service Antilock Brake System, Service Stability Control System, etc... takes it about 2 min to cycle through all the stuff that is out of service.
Lights on:
ABS
Trac Control
Forward Collision
Adaptive Cruise
MIL

Codes I pulled with the MX+:

Pending:
U0415 Invalid Data from ABS control module
U0415-00Invalid Data from ABS control module (A)

Permanent:
U0415 Invalid Data from ABS control module (A)

Current:
C0037-1D Left rear wheel sensor circuit out of range
U0415-00 Invalid Data from ABS control module (A)
P203F reductant level low (but I knew this and filled the DEF tank so should be gone now)

So looking around it would make sense that wheel sensor may be bad, but I've read around that some have had a similar issue and replaced the sensor with out resolution... I have max care so since the sensor is about $60,... I do not want to throw parts at it and then still have to do a deductible if its something bigger... any thoughts... I was leaning on taking it in as it was fine one day and then not the next.. I did check batteries, they are good and less than a yr old, I did pull grounds and let is completely reset... I learned on this that the camera systems take a bit to "come back"...
I welcome your views.

Brian

 

[Diesel85]

Just take it in on the MaxCare. You got too many bells and whistles and lights blowing off.

I just went through trials and tribulation with my EcoD. Service manual said replace MAF sensor so I did. Didn't fix it. Returned "new" MAF sensor, put in original and headed straight for the dealer because it's under warranty. Whole point of me getting that warranty was to NOT wrench on a newer vehicle.

Simple stuff OK, like a MAF sensor that is easier to change than the air filter itself is one thing. But anything more involved than that is a waste of an extended warranty.

 

[BigPapa]

What is the state of charge on your batteries?

 

[Topzide]

What is the state of charge on your batteries?

Just what I was thinking since, it had been sitting a couple of weeks. These trucks have a lot of trickle draw loads when not on a charger or being driven. Hope it's just a low state of charge and not everything on that list!

 

[BigPapa]

Low voltage does freaky things to these trucks.

 

[Turbo Terry]

I tend to agree. Whenever my trucks not being driven its on a noco 2.0 trickle charger. Inactive use just seems to kill batteries now days

 

[PRS]

I had the same issue but included “service 4wd”. Pulled the grounds and disconnected the trailer because it had a battery too. Still no difference until I drove it 100 yards, then everything cleared. The right rear wheel speed sensor was replaced. Never came back.

 

[Ozymandias]

Take it to MaxCare and do not delete these Codes - they are crucial for the tech to fix it. Once deleted they are gone, no freeze frame data anymore, no nothing.

 

[brucejohnson]

MaxCare is your friend. You paid for it, use it.
Our 2011 Jeep Patriot had a very similar issue, lit up lights for all kinds of stuff. All wheel drive dropping out into FWD only, with a clunk, more lights coming on everywhere in the dash, messages indicating the end of the world was at hand. It was the left rear ABS sensor that caused all the angst, clunks, beeps and light shows. Small deductible for the fix with the Lifetime MaxCare. Covered as long as the value of the little beast is more than the repair.

 

[Hoefler]

Have the batteries tested, OE batteries never last past 2 years. All of my RAms needed atleast one battery before the 2 year mark. And you have all the classic signs of bad batteries.

 

[bcbender]

Batteries are good, and full charged, I mentioned that I did try a disconnect and reset.. Thanks for the words of encouragement, I'll call my service tech today and schedule it... The way I see it, If its only a sensor, I'll pay for an hour of shop labor and the part and be done, If its more... that $200 will be all I pay

 

[bcbender]

Have the batteries tested, OE batteries never last past 2 years. All of my RAms needed atleast one battery before the 2 year mark. And you have all the classic signs of bad batteries.

New batteries 6 months ago..

 

[BigPapa]

Is an hour labor and a sensor not more than $200? It is around here.

 

[bcbender]

I'm sure it is.. that's why I figure that is the most I'll pay regardless of what the issue is. (lol)

 

[bcbender]

Are there any AISIN updates out there? I figure if its going in for this repair, and likely the tailgate recall, they can update the T/M at the same time. Also, If I get the map update does it update the whole system? I had a 23' 1500 a few months ago for a rental and the NAV had red light cameras on the map (with a warning)! I totally would update the map and system if that comes with it!

 

[Hoefler]

Just because they were new 6 months ago, doesn't mean they aren't bad. New batteries fail too

 

[Signal73]

Open your engine compartment fuse box and push down on each fuse and make sure they are all fully seated. Anyone with a 2019+ should really do this. You would be amazed.

 

[bcbender]

Thank you,.. Ima disconnect batteries again today and check resting voltages... I don't have a load tester, not sure who can do it, but called Costco and they dont. The batteries are new and I have had zero issues with startability or anything like that.

 

[bcbender]

Anyone out there have a battery tester, I dont really want to have to take them out to run them "somewhere" for someone who doesnt know what they are doing.. but also kinda want to put this possibility to bed before taking it to the dealer

EDIT [ was wondering if purchasing one would be worth while, what brand, type, etc ]

 

[Hoefler]

..