July Frequently Asked Questions Now Available

The July Premium Tech Tool Frequently Asked Questions are now available for viewing. This document covers the most important need-to-know information about Premium Tech Tool.

***To view the July Frequently Asked Questions, click here.

For a summary of our top five most asked questions, click here.

Tip of the Month

Volvo Dynamic Steering and Mack Command Steer System

Active Steering Calibration Operation

An improvement to the Active Steering Calibration operation in Tech Tool was released with Tech Tool version 2.7.107 Network Update. For dealers working with vehicles equipped with this system, it is important that you update to Tech Tool version 2.7.107. Details regarding the background for this calibration and improvements are below.

The recently-introduced Volvo Dynamic Steering and Mack Command Steer System (which from here will be referred to as “FAS” – Front Active Steering) requires calibration when certain actions have taken place.

These actions include:
• Front wheel alignment has been performed.
• Steering angle sensor (SAS) has been replaced or calibrated.
• Electric steering motor has been replaced or re-calibrated.
• The FAS or (Bendix) ABS ECU has been replaced or reprogrammed.

Calibration for Front Active Steering (FAS)
The calibration for the FAS system requires calibration of the Steering Angle Sensor (SAS) and the FAS. Since the SAS is part of the Bendix stability control system, calibration must be performed first using the Bendix ACom application or the Noregon JPro application. After calibration of the SAS, the FAS is calibrated using the Tech Tool calibration operation 6476-07-03-01 Active Steering Calibration (found within the Calibrate menu).
There have been reports of issues regarding the functionality of the FAS system following calibration of the system. In these cases, the FAS system was reported to have been inactive, meaning that the vehicle simply had normal power steering following the calibration rather than the light, highly-assisted steering feel that the customer may expect from a vehicle equipped with active steering.
This issue has been caused by the FAS control unit not properly resetting after the calibration. When this occurs, the active steering function remains inactive until a reset occurs. The Active Steering Calibration in Tech Tool version 2.7.107 has been updated with improvements to the ECU reset that is performed during the calibration.