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TSB : Power Steering Inoperative

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65K views 59 replies 29 participants last post by  steve333  
#1 · (Edited)
Service Information Document ID: 2322970
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#07-02-32-007B: Diagnostic Tips for Power Steering Inoperative/Steering Wheel Hard to Turn, Power Steering Message Displayed on DIC, DTCs C0176, C0475, C0476, C0550, U2105, U2107 Set - (Aug 6, 2009)

Subject: Diagnostic Tips for Power Steering Inoperative/Steering Wheel Hard to Turn, Power Steering Message Displayed on DIC, DTCs C0176, C0475, C0476, C0550, U2105, U2107 Set

Models:
2005-2010 Chevrolet Cobalt
2006-2010 Chevrolet HHR
2005-2006 Pontiac Pursuit (Canada Only)
2007-2009 Pontiac G5
2003-2007 Saturn ION

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This bulletin is being revised to update the information for DTC C0475. Please discard Corporate Bulletin Number 07-02-32-007A (Section 02 -- Steering).

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The following diagnostics might be helpful if the vehicle exhibits the condition(s) described above. Use the appropriate recommendation based on what symptom has occurred.

No DTCs
Review Corporate Bulletin Number 05-02-32-002D to assure you do not have a blown 60 amp steering fuse. The fuse can be blown during improper jump starting of the vehicle on the HHR and ION. Check for this particularly for tow in conditions. DO NOT replace the steering column unless an internal short has been identified in the column that is causing fuse to blow.

Power Steering Warning Message on DIC with DTCs C0176 and C0476
This condition is often the result of excessive lock-to-lock turns of the steering wheel, causing the thermal protection in the power steering control module (PSCM) to take the steering motor temporarily off line. This is a normal operating characteristic of the system. DO NOT replace the steering column for this condition. Refer to Corporate Bulletin Number 06-02-32-002C for additional information.

Power Steering Warning Message on DIC with DTC C0550 in the PSCM
Inspect the motor harness connection to the PSCM. If no connector problems are found, replace the steering column ONLY as this is an internal controller issue.

Power Steering Warning Message on DIC with DTC C0475 in the PSCM
Check the connection between the EPS motor and the power steering control module (PSCM) by ensuring the harness connector is properly seated. If the connection is normal, replace ONLY the EPS motor.

Note: If the DTC resets immediately following motor replacement, replace the steering column.

Power Steering Warning Message on DIC with DTC U2105 and/or U2107 in the PSCM with any other U codes. Although the code(s) appear in the PSCM, these are communication codes and are not the result of a problem with the column operation or the control module. If the codes are in history, clear the codes and re-key the vehicle a few times to see if they come back. If they reappear, look for a communication issue from the BCM U2107 or ECM U2105 (wiring, connector, etc.) as the root cause. If the codes do not reappear after a test drive, return the vehicle back to the customer. DO NOT replace the steering column.

Warranty Information, Labor Operation, Description, Labor Time

E8434
Power Steering Assist Motor Replacement
Use Published Labor Operation Time

E7680
Steering Column Replacement

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.

WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
© 2009 General Motors Corporation. All rights reserved
 
#38 ·
now if they do something about the steering shaft ill be set
 
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#39 ·
article on the mass recall:

GM is recalling 1.3 million compact cars for steering problem

and yeah, looks like it's free with or w/o warranty

"The automaker will fix older models first because it usually takes 20,000 to 30,000 miles of driving for the condition to develop"

"GM told the National Highway Traffic Safety Administration about the recall on Monday. NHTSA began an investigation into 905,000 of the models on Jan. 27 after getting 1,100 complaints that the cars lost their power steering assist. The complaints included 14 crashes and one injury."
 
#42 ·
you know... kind of funny that I'm reading this right now. I was backing into a parking spot saturday night and I heard "DING" and I looked at the dash and the message center says "power steering". I was like WTF is going on here, checked under the hood... had fluid.... so I just went into the bar and figured I'd deal with it later. I come back out and its fine.... then I read this. I guess that would explain it. If I take my 06 to the dealer are they gonna fix it?
 
#44 · (Edited)
GM spokesman Alan Adler said it will take time for the automaker to get 1.3 million new power steering motors from the supplier, JTEKT Corp., and GM will notify car owners when the parts are available.

Adler said the failures are rare and the cars can still be driven until motors can be replaced by dealers. Drivers will see a warning light and hear a chime if the power steering fails, but they could be surprised when the steering becomes more difficult.


1.3 million motors!!!!!!!!!!!!!!! my god. Its gonna take 50 years to get all the cobalts fixed!!!!


RARE MY AZZ!!!!!!! It happens to me multiple times every time I drive my car. My wife was driving it the other day and almost ran off in a ditch cause she is so tiny and couldnt hardly steer the car!!! No more excuse GM get it fixed!!! Thank you!!! :)

---------- Post added at 10:30 AM ---------- Previous post was at 10:26 AM ----------



From what I hear, we dont have fluid. Its all electronic. I dont know what fluid you checked but it wa the wrong one.... Glad its full though hahahaha
 
#43 ·
This might be a dumb question, but can we just bring our cars in for the recall even if we're not having problems, just to get the replacement and be on the safe side? Or do we have to wait until it actually breaks?

I never had to deal with a vehicle recall before... lol
 
#48 ·
I work for chevy. I don't remember if I posted yet. But the dealership has no fix for it as of this moment. I checked all my resources. So wait like a week or two. Ill update you guys if I receive any information.
 
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#51 ·
I read it, and bookmarked it in case GM decided not to do the recall. The thing is that I would rater have them fix it than do it myself given that when the recall comes out they will do it for free. That sounds better than spending $100.00 on a new one to put in myself.
 
#53 ·
recall is official as of today, just saw it on the news.
 
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#56 ·
I have had the power steering go out on me twice now and am getting ready to take it in to get it fixed. So i will post back to let you know what happens. I have read many forums that say many people have had problems with power steering. I am also taking in papers from forums to the dealership to show them about it. I really think gm needs to recall all the cobalts and fix them free of charge since they are the ones who approved of the crappy parts and are using the same company toyota uses.
 
#58 ·
Cobalt Steering Problems

We have had our Cobalt at the dealer several times over the last year for the power steering going out while driving. Dealer refused to fix it saying they can't find a problem. Talked to 3 different dealers yesterday and got 3 different answers. Apparently a service bulleten is out that they can begin fixing the problem on 3/19/2010 under the recall. Another dealer told me the recall notices will be mailed on 3/31/2010. The car goes back in on 3/18/2010 at 4pm. I'll keep ya'll posted
 
#60 ·
Just dropped mine off for the fuel module recall-no EPS Motors so I have to go back.
I mentioned poor mileage and he said they will check the throttle body to see if it needs cleaning. My guess is that they will recommend it (50,000 miles).
How much should it cost for a throttle body/fuel injector cleaning? He said it would be $229. Is it necessary?
 
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