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post #1 of 60 (permalink) Old 08-09-2009, 10:18 AM Thread Starter
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TSB : Power Steering Inoperative

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.

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2009 General Motors Corporation. All rights reserved

Last edited by Admin; 08-09-2009 at 12:16 PM.
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post #2 of 60 (permalink) Old 10-29-2009, 08:19 PM
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I called GM to tell them i have problems with that Electronic Power Steering on my Cobalt 05. They told me they had never heard about this problem before, what i think is bullsh*t. I argued with the girl that was supposed to "help" me. She had me doing a 150$ diagnostic at my dealer where i've been told the Electric Engine of the Steering was faulty. She then called me back after speaker with the dealer and tells me that they are still not going to pay for this. I told them that i've heard and read many stories,seen many forums about there crappy Steering System and she almost hung up on me. There are a lot of forum concerning people that get the same problem with this Electronic System and i am about build up a big file to go againts them and get this problem as a recall. They tried to save a couple of HP by removing there Hydraulic Pump and they messed it up. Now anybody can have their Power Steering fail in a curve and get an accident. What do u guys think about this? I might be a young men that is able to handle a steering without power steering but lets say I lean my car to my mom or sister and it fails, they could get my car wrecked because of this problem. It could happen with a normal hydraulic pump but I mean we know there is obviously a problem with their system and fails often and i am staring to get very mad about all this.I think it's a dangerous problem and major problem with Cobalts that should require more attention from GM. Anybody else experienced this problem? Thnks
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post #3 of 60 (permalink) Old 10-29-2009, 08:58 PM
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theres an online petition against it somewhere, has like 3000 electronic signatures, mainly against the steering issues, as well as the key getting stuck and the airbag sensor issue.
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post #4 of 60 (permalink) Old 10-30-2009, 05:05 PM
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Ok thanks, I found one already but it was closed already. Look at this link and see how many people are having trouble with that Electronic Power Steering. It is totally ridiculous that GM doesnt do nothing about it.

2005 Chevrolet Cobalt Consumer Complaints
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post #5 of 60 (permalink) Old 11-03-2009, 04:50 AM
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Originally Posted by clearthebuffer View Post
I called GM to tell them i have problems with that Electronic Power Steering on my Cobalt 05. They told me they had never heard about this problem before, what i think is bullsh*t. I argued with the girl that was supposed to "help" me. She had me doing a 150$ diagnostic at my dealer where i've been told the Electric Engine of the Steering was faulty. She then called me back after speaker with the dealer and tells me that they are still not going to pay for this. I told them that i've heard and read many stories,seen many forums about there crappy Steering System and she almost hung up on me. There are a lot of forum concerning people that get the same problem with this Electronic System and i am about build up a big file to go againts them and get this problem as a recall. They tried to save a couple of HP by removing there Hydraulic Pump and they messed it up. Now anybody can have their Power Steering fail in a curve and get an accident. What do u guys think about this? I might be a young men that is able to handle a steering without power steering but lets say I lean my car to my mom or sister and it fails, they could get my car wrecked because of this problem. It could happen with a normal hydraulic pump but I mean we know there is obviously a problem with their system and fails often and i am staring to get very mad about all this.I think it's a dangerous problem and major problem with Cobalts that should require more attention from GM. Anybody else experienced this problem? Thnks
I too have this problem and did a www.safecar.gov complaint called gm was told I needed to get a diagnostic done at the dealership signed a complaint on a website. I have tried everything I can but to no luck. If you haven't already go to safecar.gov and file a complaint there. Hopefully in the near future we will get satisfaction.
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post #6 of 60 (permalink) Old 11-03-2009, 09:24 AM
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affects all Delta-body cars, i.e. chevy hhr, saturn ion and pontiac g5 as well as the cobalt
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post #7 of 60 (permalink) Old 11-06-2009, 05:51 PM
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this motor sucks to change... thats all i did at work when i first started....



mods... tinted taillights, 1000 watt alpine mono amp, 2 10 inch alpine type "r" subs, basspro slot ported box, xm radio, alpine 6x9 rear speekers, alpine 6.5 front speekers (both type "s",09SS front bumper and lip,black factory headlights, 12k foglights, 10k headlights, slp catback,fe5 suspension with sportlines,black carpet, painted plastics (black) huge custom pink monster sticker... and ofcourse.... BLACKED OUT!
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post #8 of 60 (permalink) Old 11-06-2009, 05:53 PM
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and btw... from what i understand.. in order for there to be a recall... D.O.T has to get involved



mods... tinted taillights, 1000 watt alpine mono amp, 2 10 inch alpine type "r" subs, basspro slot ported box, xm radio, alpine 6x9 rear speekers, alpine 6.5 front speekers (both type "s",09SS front bumper and lip,black factory headlights, 12k foglights, 10k headlights, slp catback,fe5 suspension with sportlines,black carpet, painted plastics (black) huge custom pink monster sticker... and ofcourse.... BLACKED OUT!
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post #9 of 60 (permalink) Old 11-06-2009, 06:04 PM
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post #10 of 60 (permalink) Old 11-06-2009, 06:07 PM
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u got me bro.... someone at work was tellin me.. cuz mine went too, last week and i work for a chevy dealer so i swapt it myself.. i asked for a recall and i was told DOT's gotta get involved...



mods... tinted taillights, 1000 watt alpine mono amp, 2 10 inch alpine type "r" subs, basspro slot ported box, xm radio, alpine 6x9 rear speekers, alpine 6.5 front speekers (both type "s",09SS front bumper and lip,black factory headlights, 12k foglights, 10k headlights, slp catback,fe5 suspension with sportlines,black carpet, painted plastics (black) huge custom pink monster sticker... and ofcourse.... BLACKED OUT!
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