Steering - Insufficient Steering Assist, Warning Light ON
48 13 01March 18, 2013
2027277 *Supersedes T.B. V481102 dated November 17, 2011 to include additional model year applicability.*
Vehicle Information
Condition
Insufficient Steering Assistance - Warning Light ON
Note:
The condition as described does not affect the ability of the operator to control the vehicle.
Customer may comment about the following concern:
^ Steering is stiff.
^ Yellow and red power steering warning lights on.
The entries can be logged in the Power Steering Control Module -J500- :
Technical Background
Software-related deviation in the power steering control unit (-J500).
Production Solution
Improved software.
Service
Update-Programming Procedure:
Tip:
To Update-Programming using SVM, review and follow instructions in Technical Bulletin Instance 2014603 "Software Version Management".
The SVM Process must be completed in its entirety so the database receives the update confirmation response. A warranty claim may not be reimbursed if there is no confirmation response to support the claim.
Note:
Prior to launching VAS-PC or ODIS application and starting control module update process, confirm tester screen saver and power settings in accordance with Special Tools and Equipment - Service Information Circular # VVT-12-02. Failure to do so may result in the tester entering power save mode during data transfer, and subsequent control module failure.
When using a VAS 6150/5051B tester in conjunction with a VAS 5054A wireless transmitter head for a flash procedure, please connect a USB cable between the transmitter head and the tester. Failure to do so may lead to errors during the flash procedure.
^ Update the Power Steering Control Module -J500- using the SVM Unit code as listed in the table shown.
The procedure can be found in GFF under Functions/Component Selection, Software Version Management,
Adapting Software.
WARNING:
Tip:
The SVM Process must be completed in its entirety so the database receives the update confirmation response. A warranty claim may not be reimbursed if there is no confirmation response to support the claim or action is carried out that is not explicitly stated in the Technical Bulletin.
After performing the update process the functions/component selection in guided fault finding or in guided functions must be performed:
^ Adjustment of the power steering
^ Basic settings the steering end stops
^ Basic settings of the external steering angle sender -G85
^ Adjustment - J500 with power steering*
^ Adjustment - J500 parking assistant*
^ Adjustment - J500 for turning and steering torque compensation
^ Adjustment - J500 with damping control*
^ Adjustment - J500 with lane change assistant*
^ Update power steering control unit J500 software
^ Delete memory
^ The adjustment can differ depending on the vehicle equipment.
Tip:
Upon completion of basic settings, if prompted, answer the "was the power steering gear replaced"? with a "Yes" answer.
Warranty
Required Parts and Tools
No Special Parts required.
Additional Information
All part and service references provided in this Technical Bulletin are subject to change and/or removal.
Always check with your Parts Dept. and Repair Manuals for the latest information.