2009 Pontiac G6 EPS

Tiny
ZELLERDEREK4
  • MEMBER
  • 2009 PONTIAC G6
  • 2.4L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 70,000 MILES
I am having a similar problem to this question i just read http://www.justanswer.com/pontiac/6qe56-pontiac-g6-daughters-07-g6-off-steering.html but , on cold mornings with out too long of Warm up the steering will stick on a quarter turn either way the only other differenece that i noticed is that mine is a 2009 4 cyl i removed the EPS fuse and the power steering message came up on the radio face but power steering never shut off also when the power steering shuts down (very occ. shuts down) it becomes solid and cannot turn it seems like unless its me going into panic b4 i bump into nutrual to shut down and restart the car and then power starts again and runs normal
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Wednesday, January 8th, 2014 AT 1:03 PM

33 Replies

Tiny
SATURNTECH9
  • EXPERT
I belive I already talked to you about this one pulling fuses will set false codes. You need To have the codes cleared in the power steering module then when the steering becomes inop see what codes set?Thats really where we have to start. The main things that fail on those are the motor and the module's.
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Wednesday, January 8th, 2014 AT 1:18 PM
Tiny
ZELLERDEREK4
  • MEMBER
Yea I beleive so that was one of the tests the dealership told me todo I took it to 3 dealers today and none of them came up with anything no codes no faults nothing at all they r stumped I am stumped do you think a bad ground from battery to body could cause an issue I changed that today bc it looks like it caught fire some how almost my best discription but didnt actualy
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Wednesday, January 8th, 2014 AT 4:06 PM
Tiny
SATURNTECH9
  • EXPERT
Highly doubt it the way you say the power steering is inoperable and you cycle the key and it works again that tells me that the computer senses a fault in the steering and shuts it down. Then you cycle the key and it works again because you reset it and will again till the computer senses a fault during that key cycle. Your going to have to wait till it fails and then go get the codes read. But the most common thing I have seen fail is the motors on the electric steering.
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Wednesday, January 8th, 2014 AT 4:27 PM
Tiny
ZELLERDEREK4
  • MEMBER
Alright thank u for the advice I was hoping that the problem would happen while I was at a dealer but it wouldnt bc I wouls have left it running and called someone to come look at it
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Wednesday, January 8th, 2014 AT 4:36 PM
Tiny
SATURNTECH9
  • EXPERT
What happens as time goes on is the motor will fail more and more frequently the problem is the newer the car the more computers etc. Also the newer cars takey expensive professional scan tools to check codes In all the computers read data special tests for diagnoses etc.
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Wednesday, January 8th, 2014 AT 4:41 PM
Tiny
ZELLERDEREK4
  • MEMBER
Yea I see that now my question for u with out starting another question topic process is would you be able to locate a wiring diagram for the abs system
bc I just got off the phone with my foreman that I used to work with and he is saying although the systems may not be directly connected they may communicate with each other and if and when the abs stops communicating (possibly due to a corrided connector ) it could send a signal to steering module since it is all electronic I still want to take car back to dealer and have them rescan it till they find a problembut in the mean time I want to check harness for any corrosin
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Wednesday, January 8th, 2014 AT 5:17 PM
Tiny
SATURNTECH9
  • EXPERT
I see where your going with this but even if the abs didn't send it's data the steering wouldn't shut down. The steering will only shut down when the steering computer see a problem Wit h the steering system. Let me see what I can find the code was U2105 correct?
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Wednesday, January 8th, 2014 AT 5:33 PM
Tiny
ZELLERDEREK4
  • MEMBER
Yes thats the code my foreman also said something along the lines that the steering shuts down like that bc it cant see what the bcm is doing ut I understand wat you are saying as well
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Wednesday, January 8th, 2014 AT 5:50 PM
Tiny
SATURNTECH9
  • EXPERT
The steering doesnt care what the bcm is doing lol unless the steering cant talk to it like a data line failure then it will just set a code saying it cant talk to it. Shutting the steering down is a safety feature if the computer cant control it correctly for safety. Like your throttle by wire if there is a failure it will go into limp mode reduced performance mode. Hope this helps you better understand whats happening.
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Wednesday, January 8th, 2014 AT 7:14 PM
Tiny
ZELLERDEREK4
  • MEMBER
I contacted judy wax out in las vagas from identifix who set me up wit a temp user name to try to trace the problems I am having so far I found 2 confirmed fixes with the codes I am having and wen and did one not too long ago wen I realized my battery (-) cable looked like sh*t the other fix was to replace BCM and ECM while I was looking at the modules under the hood I found the lower module mounted to frame but above and infront of trans with a blue connector I am not sure if I unplugg if anything has to be reset so I left intact but noticed that the blue houseing is very loose compared to what I believe is the ECM semi mounted to front of battery box with 2 black connectors along with the code u2105 I am now getting u2107
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Thursday, January 9th, 2014 AT 6:40 PM
Tiny
ZELLERDEREK4
  • MEMBER
I am still reading up on these problems thru identifix and might be up all night doing so bc I cant sleep if there is a problem with my car or if I remember I forgot to do something to a car as I was trying to see if I could purpousely get the steering to lock up solid again right before I came inside I got it to binde up doing 35-40 around another right hand 90 wide turn but never got a SERVICE POWER STEERING message on the DIC this time and it came right back as soon as I took my foot off the brake now if you are not familiar with the blue connector I am talking about while u read this a hard right in my mind the way the module is positioned the connector would try to wiggle out any thought on this?
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Thursday, January 9th, 2014 AT 6:45 PM
Tiny
SATURNTECH9
  • EXPERT
I'm not familiar with the blue connector maybe you have a poor ground to the brake lights and when stepping on the brakes its stealing the ground from somewhere else.
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Thursday, January 9th, 2014 AT 10:00 PM
Tiny
ZELLERDEREK4
  • MEMBER
I did find a bulb onthe high mount brake where the socket it was in was melted
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Friday, January 10th, 2014 AT 7:49 AM
Tiny
SATURNTECH9
  • EXPERT
Thats pretty common to see melted bulb sockets like that even melted switch connectors atleast on the gm vechiles.
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Friday, January 10th, 2014 AT 8:19 AM
Tiny
ZELLERDEREK4
  • MEMBER
This is the connector I was talking about located below the battery box connected to a module which I believe is the bcm
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Friday, January 10th, 2014 AT 8:41 AM
Tiny
ZELLERDEREK4
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This connector goes into a harness that is spliced I beleive is the word im looking for with the other module located above it and connected to the battery box this module has 2 harnesses and I cant seem to located the proper names for either
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Friday, January 10th, 2014 AT 9:03 AM
Tiny
ZELLERDEREK4
  • MEMBER
The blue clip is the trans control module and the double black infront of battery is ecm now I have a question concerning all modules if I remove any connectors to them will any have to be reprogramed or will all info be stored will I have to worry about any problems bc I would like to check all connections
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Friday, January 10th, 2014 AT 9:12 AM
Tiny
ZELLERDEREK4
  • MEMBER
Tests/Procedures:
1. Remove the glove box and the right side close out panel under the Instrument Panel (IP).

2. Locate the Vehicle Communications Interface Module (VCIM) right of the glove box.

3. Verify all the connectors at the module.

4. Place an ohmmeter between pins 14 and 6 of the DLC. A correct resistance value will be 60 ohms +/- 10%.

5. Pull, tug and wiggle all harnesses and connectors at each of the modules on the High Speed LAN Network.

This is to check for the code u2107 and my ohms reading was aprox 46 but kept jumping around
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Friday, January 10th, 2014 AT 11:04 AM
Tiny
SATURNTECH9
  • EXPERT
Yeah I was going to say I have never seen a bcm under the hood but ecm and tcm have seen a lot of them there. Sounds like the ohms readings are in spec can you get the loss of steering while stepping on the brake again?Was the steering disabled till the next key cycle?Thats when your going to get a code from the steering module when that happened. Sounds like you have a couple of problems going on.
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Friday, January 10th, 2014 AT 11:55 AM
Tiny
ZELLERDEREK4
  • MEMBER
Havent been able to get it to do anything since but its not reading evap sys o2s or cat? And while I was driving after 40 some mins I hooked up my scanner and the security sys flashed and stayed on on the dash like it was driving while factory auto start was running
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Friday, January 10th, 2014 AT 12:36 PM

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