H3 SERVICE STAB SYS code after rack and pinion replacment

[kevdog]

just replaced my rack and pinion on my 2006 H3 Hummer and now it is throwing a SERVICE STAB SYS code? Any idea why and how I can clear it?

 

[alrock]

Check the ABS sensors at the wheels. Did you disconnect, break or otherwise damage one?

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[amrg]

As i recall you need to have your steering wheel set and locked using a gm tool so that it doesnt turn while replacing the steering rack (the stabilitrack sensors are associated with your steering wheel and any turning of the steering wheel while replacing the rack ends up giving you errors). Do a search you should find someone telling you what needs to be fixed for this exact issue.

 

[4speedfunk]

One of two things...
Either your wheel is crooked or you have rotated the wheel with the rack disconnected. There is a yaw sensor located at the base of the column and you must pull the column to recalibrate it.
All instructions say you must replace the sensor but that is not entirely true. It can be fixed with a paper clip. Usually...there is a second problem that can occur by rotating the wheel while disconnected. The smart switch (turn signals, horn, brights, cruise control) has a ribbon cable inside it, and if any of these functions are not working....the entire smart stick must be replaced. PM me and I can get deeper into it.

 

[amrg]

One of two things...
Either your wheel is crooked or you have rotated the wheel with the rack disconnected. There is a yaw sensor located at the base of the column and you must pull the column to recalibrate it.
All instructions say you must replace the sensor but that is not entirely true. It can be fixed with a paper clip. Usually...there is a second problem that can occur by rotating the wheel while disconnected. The smart switch (turn signals, horn, brights, cruise control) has a ribbon cable inside it, and if any of these functions are not working....the entire smart stick must be replaced. PM me and I can get deeper into it.

Bringing out an old thread,

My 06 failed inspection due to loose steering rack so I had a mechanic instal the steering reinforcement kit/bushings. I made sure to inform him about not turning the steering wheel. Anyway, I now have the service stabil msg which started the second I picked up the truck. Tried to pull codes using obd2 but nothing.
Signal lights/horn everything work and had the mechanic check the abs sensors at the front hubs and they are fine so is there a way to recalibrate that sensor?

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[4speedfunk]

Yes and no. You cannot "recalibrate" the steering wheel sensor with any sort of software or diagnostic tool. It's a hard part and it must be physically reset by hand. New sensors (and turn signal smart switches) come out of the box with a lock pin installed in them. The installation procedure requires that the front wheels, the steering wheel, the rack, and the sensor...must be perfectly centered. Then AFTER the column is reinstalled, you can pull the lock pin on the sensor, the smart switch, and the column itself.

On the H3, a crooked steering wheel will set a code.


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[amrg]

Tbh my steering wheel was crooked slightly before removing the rack and now its back in the same crooked position.
I did go for an alignment today but the shop told me my 10K miles old DORMAN UCA ball joints are shot while the inner tie rods need replacing.

Pretty disappointed with the DORMAN UCAs since those 10K where strictly street driving good roads with very worn out stock 32" tires!


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[brash47]

Just had a shop replace alot of my parts including steering rack. The truck rides amazing now.

The shop let me know that I'm throwing the stabilitrak error. They couldn't figure it out at end of day.

I took the vehicle because I need it lol.

So, it does not throw and code or any other error, just the stabilitrak.

The code is c0710, swps is out of alignment etc.

I reset it a few times. The code doesn't come back if it turn the wheel in park or go back/forward. It only triggers if I have the vehicle in motion and turn the wheel.

The shop said they didn't turn the wheel when they replaced the rack. Abs sensors are all connected.

Any thoughts, just the swps? And if so, instead of $100 is there a way to actually do the physical reset by hand on the existing one and what is the procedure?

And the shop is awesome, they said they would make it right.

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[4speedfunk]

Yes, you can reset it but, it’s a very involved procedure. It’s a 1000 word essay on a forum. I’ve done it using a paper clip and fiddling with the sensor for about ten minutes. Entire steering column must be pulled to access it.

BTW...there is no other way for it to loose its center position. The wheel had to be rotated during the rack swap. Most likely the wheel is one turn out in either direction.

If you have access to a full size diagnostic machine, I believe you can actually read the degrees of rotation and determine which direction it is sitting at. The range is something like +720 to - 720 (four turns lock to lock). Obviously the wheel needs to read 0 when centered. So you can disconnect the clamp at the rack and rotate the shaft the correct direction, then reconnect it and re-check the electronic position. I think it needs to be within 15 degrees of 0 to pass without setting a code.

That’s the short version.


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[4speedfunk]

Track down the Russian guy from Kamchatka. He just did this re-centering procedure for the same reason.


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[brash47]

Awesome thanks, in just wanna make sure the ribbon to the smart stick doesn't get yanked

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[4speedfunk]

Yes. That is a valid concern.


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[napalmsticks]

As i recall you need to have your steering wheel set and locked using a gm tool so that it doesnt turn while replacing the steering rack (the stabilitrack sensors are associated with your steering wheel and any turning of the steering wheel while replacing the rack ends up giving you errors). Do a search you should find someone telling you what needs to be fixed for this exact issue.

This is probably it. When I replaced my head I had to remove the steering rack and the same thing happened to me. I had to rotate and restab my steering linkage a few times to get it correct.

 

[08H3]

Pretty disappointed with the DORMAN UCAs since those 10K where strictly street driving good roads with very worn out stock 32" tires!

I'm not one to repeatedly bash a product at every opportunity, but Dorman parts are the exception. I had about the same longevity from my Dorman UCAs.

 

[lsv_palana]

Hello dear friend. Here is my story about recentering. i have tech2. h3 have two sensors for steering angle on tech2. analog and digital. do not look on one of them. i dont remember, but digital show wrong position and it correspond with analog with every ing on. so.. remove shaft from rack and using tech2 turn wbeel. look on analog sensor. it must be 0. digital can show anything. ok. when you reach 0 put shaft on rack. restart car. drive 200 meters or so.. stab sys error will gone. you no need to buy steering rack sensor.

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