Check PCS System? (1 Viewer)

[Itsky]

So I installled an OME suspension system and new UCAs, upon starting the truck, I got a “Check PCS system” error, along with center diff lock blinking, “brake” and “abs” and the slippery road icon.

Assuming I damaged an abs wire during install, today I visually checked all of them and they all look fine. I thought the front right was most likely damaged, so I took it out and tried to do a continuity test with a multimeter, but I couldn’t any results. The connector has two male pins and 6-8 female. The male pins rendered no reading to the other end of the abs wire and the female pins were too small for my multimeter to penetrate. I tried taking the connector apart, but that didn’t work and I didn’t want to destroy them so I stopped.

I then did the following:
- disconnect the battery for 1 hour
- cleaned the camera in the grill
- did the “reset” button under the dash for for the tpms

I don’t think my abs wires were damaged, I took precaution during the install, and there is no visible evidence of damage.

But maybe?

Any thoughts or suggestions?i would like to try my options before I visit the dealer.

Thanks!

-

 

[Itsky]

Anybody?

 

[indycole]

Any specific error codes? Able to pull those?

 

[Itsky]

Any specific error codes? Able to pull those?

Sadly, I’m not able to. Need to remedy that.

Thanks!

 

[Itsky]

Photo. The center diff is also blinking (not pictured)

 

[ethernectar]

I'll get an occasional PCS sensor message when moving between altitude levels, I think normally around 2500'. It goes away after some time and some further altitude change.

Once I've had the center diff light/etc flash after 50 miles of dirt. Detached the battery for 10 minutes and it all reset.

 

[TonyP]

If you're not getting continuity, it's damaged. There was no observable damage on mine either, yet it was.

Stick one of the multimeter probes in one end and start poking along the length of the wire until you get a beep. Isolate the spot(s) that are damaged, bust out the soldering iron or butt connectors and start doing surgery.

Or buy new harnesses. They aren't cheap though.

 

[Itsky]

Thanks @TonyP , I am such a rookie!

 

[TonyP]

Thanks @TonyP , I am such a rookie!

Worst case, just looked it up. They're $100 or so a piece. Depending on who you go through.

RH: 8951660200
LH: 8951660220

Edit: First thing I'd do is pull the codes.

 

[Itsky]

$100 isn’t so bad, thank you for the info! At lunch break, I may just try the continuity test.

 

[indycole]

Just a tip...

Electronics debugging is one of those areas where having the right tool for the job can alleviate some of the frustration. Check out the variety of multimeter testing tools to see if anything would be helpful.

Amazon.com : multimeter probes

 

[40Man]

The gauge on the abs wire is very thin, and will break very easily, just by letting the wire stretch at all can cause it to stop working. I had the same thing happen when putting a lift on my 03 4Runner. Used a continuity tester and spliced in some wire.

 

[indycole]

To the point above, I'd also exhaustively test all wires in that harness not just for continuity but also for resistance. If one wire needs spliced there's a decent chance at least one additional one does as well.

 

[Itsky]

Made some progress on this today.

Turns out I hosed BOTH ABS wires during install, despite my best effort to protect them and awareness going in.

I tried my luck at fixing one, still had the dash lights. Went to dealer and they told both looked broken after a scan. So I bought two new wires still thinking it was only one and I just did an ineffective fix.

Today I installed the new right wire, no dice.

Then the left, and boom. Problem solved! Dealer was right.

Moral of the story, remove the abs wires after the wheel when installing a lift, if you’re a rookie.

 

[TonyP]

Those wires are as brittle as uncooked spaghetti.
Glad it's solved.

 

[Heimdall 60]

Mine is doing this as well, but I have not altered the truck in anyway? I found some dirt near me to just put it in 4low tonight, neutral and stopped, it shifted into low just fine, then when shifting back to 4 high I could physically feel it shift but then the same error code as OP came up with the other lights. Tried turning the truck on and off, shifting back into 4low, with no changes. The truck is a 2013 new to me at 120k, could the abs wires have suddenly become a problem in literally a dirt lot?

 

[Heimdall 60]

Here's the dash.

 

[Itsky]

Tough to say, my dealer was able to diagnose it with their reader. In the meantime i was able to drive it. The tough thing about the wires is they don’t look damaged when they are.
they are pretty easy to replace, I did both sides without even taking off the tires, although I wouldn’t recommend that.

 

[elk]

I recently had this issue resulting from rodent damage in the engine bay. Check for a nest by the fuse box as well.