Evaluation of gear selection range The transmission control unit contains no information about the selected gear
|  | Description
|  | Effects on the driving operation
|  | Possible causes
|  | Place of action
|  | Instruction
|  | Setting conditions of the event
|  | Testing conditions of the event
|  | Final function check
Description The transmission control unit does not receive any information from the CAN-pushbutton on the selected gear. At least one of the CAN signals ´Requested Gear´ or ´Requested Range´ is not available. Effects on the driving operation Driving is not possible. The transmission shifts to neutral. The optional limp-home switch allows continuing the drive. Possible causes CAN communication disturbed. Defect of the Voith CAN-pushbutton or defect of the MAN-FFR (vehicle control computer) for systems without Voith CAN-pushbutton. Message TC1 is affected. Place of action No description available. Instruction Check cabling. Check control units. Setting conditions of the event No description available. Testing conditions of the event No description available. Final function check If the defective component cannot be clearly identified, you should try to reproduce the fault: Reinstall the component in the vehicle. Test function. After the fault has been eliminated, the following steps have to be carried out: Conduct a test drive with function check. Read the fault memory Check transmission for leaks. Perform a final visual inspection. These steps are necessary to ensure the entire vehicle functions correctly.
© by Voith Turbo GmbH & Co. KG, S. Brunnengräber send remarks to stefan.brunnengraeber@voith.com (documentation department)