Jump to content

Problem solved 22 silverado with NHT and multiple codes

flattop
 Share

Recommended Posts

flattop Enthusiast

flattop

Posted
Posted

Hello all,

 

My 2022 silverado 4X4 crew cab with NHT (Max Tow) out of the blue last month threw a check engine light. The truck has 110k and had basically been trouble free besides the A/C compressor that extended warranty covered at 99k. Anyways the check engine light came on around 1/1/26 and these were the codes, U01B0,U0623,U0632,U0633 and U1345. 

 

A reset only gave me about 80 miles and they all returned. So before I really started to dig in to this issue, the radiator plastic end cap decided to crack about 3" on the drivers side a few inches from the top! Crazy, a 4.5 year old radiator goes bad!  So this problem takes precedence and I find a NHT radiator, not easy, but get it ordered and begin the disassembly process. 

 

New Radiator was 3 business days out, so i did some research on those codes. One of them referenced communications with battery module and one was talking about the radiator shutters and electric fans. So as I was looking in front of where the radiator goes I see a connector that would be right where the shutter drive motor would go. The NHT trucks have the shutter system deleted from the factory, but they left this 3 conductor female connector, open to the elements, no safety block off plug.

 

Well it was loaded with green corrosion and road salt residue. The Hot Rodder in me wanted to just cut off the connector and tape them up, but I got a pick and with wd-40 cleaned all the residue and put some dielectric grease on them.

 

Re installed radiator and began putting miles on the truck and to my surprise the check engine codes have all disappeared! As of today the truck is at 112k with no issues.

 

Something to look for if you get this set of codes.

 

Flattop

 

 

 

 

 

 

 

  

  • Like 4

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • JohnRoy
      2020 Sierra 2500 windows rolling down

      By JohnRoy · Posted

      Hey thanks yall for the info. It apparently was the key fob - the "reserve" key fob works just fine. Yall were all over it. Great input! JRD
    • PunchT37
      Wow I'm in a pickle. (Broke down truck) and a story.

      By PunchT37 · Posted

      I just bought one of these.   https://www.topdon.us/collections/diagnostic-tools/products/artidiag-pro   Yeah, it`s got a cable. $250/year after 2 years. Do I want more? Yep. But, I`m not working any more and can`t afford a whirlpool in my tool box.
    • Atlas
      Wow I'm in a pickle. (Broke down truck) and a story.

      By Atlas · Posted

      Why don't I have a good scanner? I've always wanted one when I've needed one.   My latest reading says I don't need to do a relearn on the ckp sensor on a 1995 with OBD 1.5. The relearn is prescribed for the later-model 1995's which shipped with actual OBD II when GM completed the transition in prep for the 1996 MY. I need to confirm that. Did you know forums are disappearing? Knuckleheads on Facebook... it's not the same. It's just not.   So, scanners. Again, shooting myself in the foot for having eBayed my Snap On MT2500 "brick" with all the adapters. Not that I couldn't buy another but those are getting quite old, and mine wasn't new enough to work on 2000's vehicles.   Damn it (as I'm scanning my email between paragraphs here). Did you know there's a 2000 Jimmy 2-door on BaT that's ending this morning? It's local. I want it. 14k miles. Absolutely beautiful.   Back to scanners. MT2500's are old. Solus, now that could be a contender. There's a ~2008 Verus with a system error that's basically new in box for cheap. Hmm...I'm not sure about a scanner that runs an archaic version of windows (95 or CE, I can't tell).   I want the ability to reset and rotate TPMS, test individual modules, bleed ABS, electronic parking brake controls for servicing brakes, relearn procedures and other bidirectional controls.   Snap On does an MT2600. It's a new model as of last year, marketed as their "entry" scanner. Entry? Only where $1900 gets you through the doorway plus, I'm guessing, $1000/year if you wish to keep it current. So goes scan tools actually designed for production environments. Want decent products with excellent support, you pay for it.   Everyone is raving about Autels and TopDons and Foxconns and all these newer brands that are selling the $500 "prosumer" scanners for backyard hacks like me. They're tempting...honestly. Updates are cheaper, base prices are remarkably cheaper... And you get to deal with bugs and translation whoopsies and, well, just don't use it on anything expensive, OK? Having a dealer replace an ECU because it needs to be re-imaged after an adventure in scanning is no joke. But I think most people are getting by OK with these units.   eBay on a scratch-and-sniff pro-model oldie, a shiny new TopDon, or???   God dang it, I can't stop looking at this Jimmy. I'm ready! I'll Bring The TRailer! It's beautiful.
    • Texasdeere
      What have you done to your K2 today?

      By Texasdeere · Posted

      I removed the OE running boards.  It looked so much better.  I wish I took them off a long time ago.     I had to put something back on for my wife.  I wanted Westin Sure Grip Running Boards but they are very pricey, like $600 plus.  I was going to go with the Ionic 41's like I had on the 2019 Silverado but went with Westin Outlaw Drop Steps instead, about $200 cheaper.  They are sturdy and functional but not super crazy about the look, but it works.  
    • Atlas
      Gas Prices

      By Atlas · Posted

      It's all a crock of 💩

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...