Question about 2006 Pontiac G6

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Have an message that says error where the mileage should appear Also have a message in the radio dash the says Power Steering

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  • kprecruits Sep 05, 2010

    I need to know if there is anything I can do to remedy this situation.

    There is a message that says error in the field which should display the mileage

    A message is appearing in the radio dash that says Power Steering

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2 Answers

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  • Pontiac Master
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A fault has occurred in the power steering, the two messages are related, one alerts you to a fault in the system, the other gives the area of the fault, this car has electric assist power steering and it has a number of different sensors that can cause this fault, the system must be tested by the GM dealer to determine which fault is causing the error, each fault has its own fault code, the GM scanner can read these

Posted on Sep 05, 2010

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  • Master
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Hi,

This is a common problem and you need to be careful as it is dangerous to drive the car, if this message is being displayed.Below is the technical bulletin offered for 2006 Pontiac G6 :-

INFORMATION

Bulletin No.: 06-02-32-002C

Date: April 10, 2008
Subject:
Normal Operating Characteristics of Electric Power Steering (EPS) System During Extended Lock-to-Lock Turns (Maximum Steering Wheel Rotation) and/or DTCs C0176 and C0476 Set


Models:
2004-2008 Chevrolet Malibu, Malibu Maxx (excluding 2006-2007 SS and 2007 Maxx models)
2005-2008 Chevrolet Cobalt, Equinox
2006-2008 Chevrolet HHR
2005-2008 Pontiac G6 (excluding 2006-2007 GTP, 2006-2008 Convertible and 2007-2008 GT models)
2005-2006 Pontiac Pursuit (Canada Only)
2006-2008 Pontiac Torrent
2007-2008 Pontiac G5
2002-2008 Saturn VUE
2003-2007 Saturn ION



Supercede:

This bulletin is being updated with the 2008 model year. Please discard Corporate Bulletin Number 06-02-32-002B (Section 02 - Steering).

The purpose of this bulletin is to inform technicians of normal operating characteristics of the electric power steering system (EPS) when the steering wheel is turned in either direction for an extended period of time.

When the steering wheel is turned to its maximum rotation the power steering control module (PSCM) will command the maximum amount of current to the EPS motor. If the steering wheel is held in this position for an extended period of time the PSCM will go into overload protection mode to avoid system thermal damage. In this mode the PSCM will limit the amount of current commanded to the EPS motor which reduces steering assist levels.

If the PSCM detects a high system temperature and the overload protection mode is invoked DTC C0176 "System Thermal Error" may be set. On some models DTC C0476 "Electric Steering Motor Circuit Range/Performance" may also be set. These DTCs indicate normal PSCM action (reduced steering assist) to prevent thermal damage to power steering system components.

Refer to Power Steering System Description and Operation in SI or the appropriate Service Manual for more information about this and other vehicle-specific information on electric power steering systems.

For customer inquiries regarding this characteristic please refer to the Steering section under Driving Your Vehicle in the appropriate Owner Manual (reproduced below for reference).

Owner Manual Information

If you turn the steering wheel in either direction several times until it stops or hold the steering wheel in the stopped position for an extended amount of time you may notice a reduced amount of power steering assist. The normal amount of power steering assist should return shortly after a few normal steering movements.


Answers to the Questions you might be thinking :-

1. As of now, there is no RECALL for the same.
2. If it is not under warranty, the expense would be borne by you.

There are few other things that could cause this.Power Steering System Description and Operation (Electronic Power Steering)

The power steering system reduces the amount of effort needed to steer the vehicle. The system uses the powertrain control module (PCM), body control module (BCM), power steering control module (PSCM), discrete battery voltage supply circuit, steering shaft torque sensor, steering wheel position sensor, power steering motor, driver information center (DIC), and the serial data circuit to perform the system functions. The PSCM and the power steering motor are serviced as an assembly and are serviced separately from the steering column assembly. The steering shaft torque sensor and the steering wheel position sensor are not serviced separately from each other or from the steering column assembly. The steering column assembly does not include the power steering motor and module assembly.

Steering Shaft Torque Sensor
The PSCM uses the steering shaft torque sensor as it's main input for determining steering direction and the amount of assists needed. The steering column has an input shaft, from the steering wheel to the torque sensor, and an output shaft, from the torque sensor to the steering shaft coupler. The input and output shafts are separated by a section of torsion bar, where the torque sensor is located. The sensor is a 5 volt dual analog inverse signal device with a valid signal voltage range of 0.25-4.75 volts. When applying torque to the steering column shaft during a right turn, the sensor's signal 1 voltage increases, while the signal 2 voltage decreases within the valid signal voltage range. When applying torque to the steering column shaft during a left turn, the signal 1 voltage decreases, wile the signal 2 voltage increases within the valid signal voltage range. The PSCM recognizes this change in signal voltage as steering direction and steering column shaft torque.

Steering Wheel Position Sensor
The PSCM uses the steering position sensor to determine the steering system on center position. Since the power steering motor provides a slight amount of return to center assist, the PSCM will command the power steering motor to the steering system center position and not beyond. The sensor is a 5 volt dual analog triangle signal device with a valid signal voltage range of 0-5 volts. The sensors signal 1 and signal 2 voltage values will increase and decrease within the valid voltage range, and stay within 2.5-2.8 volts of each other as the steering wheel is turned.

Power Steering Motorr
The power steering motor is a 12 volt brushless DC reversible motor with a 65 amp rating. The motor assists steering through a worm gear and reduction gear located in the steering column housing.

Power Steering Control Module (PSCM)
The PSCM uses a combination of steering shaft torque sensor input, vehicle speed, calculated system temperature and steering tuning to determine the amount of steering assist. When the steering wheel is turned, the PSCM uses signal voltage from the steering shaft torque sensor to detect the amount of torque and steering direction being applied to the steering column shaft and then command the proper amount of current to the power steering motor. The PSCM receives a vehicle speed message from the PCM via the serial data circuit. At low speeds more assist is provided for easy turning during parking maneuvers. At high speeds, less assist is provided for improved road feel and directional stability. The PSCM nor the power steering motor are designed to handle 65 amps continuously. If the power steering system is exposed to excessive amounts of static steering conditions, the PSCM will go into a protection mode to avoid thermal damage to the power steering components. In this mode the PSCM will limit the amount of current commanded to the power steering motor which reduces system temperature and steering assist levels. The PSCM must also be setup with the correct steering tuning which are different in relation to the vehicles powertrain configuration, sedan, coupe, tire and wheel size etc.. The PSCM has the ability to detect malfunctions within the power steering system. Any malfunction detected will cause the DIC to display the POWER STEERING warning message and/or the service vehicle soon indicator.
if this is a hydraulic system then the rack is going bad if this is the electric then like I said could be any of the parts of the system,it might need just to be reprogrammed.I would suggest you to visit a dealer at the earliest for the same.

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Posted on Sep 05, 2010

  • taran_2005
    taran_2005 Sep 05, 2010

    Thanks for your response!!

    Unfortunately, this is not a DIY. The reason i offered you the complete procedure to explain you what should needs to be done at the dealer shop. There is no Quick fix for this problem. I wish i had a better solution.

    I am sorry, but that's the only solution.

    Let me know,if needed further assistance.

    Hope i helped you.

    Thanks for using ' Fixya ' and have a nice day!!

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