CAN brake signal source Braking torque continuously greater than ZERO
|  | Description
|  | Effects on the driving operation
|  | Possible causes
|  | Place of action
|  | Instruction
|  | Setting conditions of the event
|  | Test conditions of the event
|  | Troubleshooting
|  | Final function check
|  | See also:
Description Braking torque continuously greater than 0 Effects on the driving operation No retarder activation Possible causes The brake torque received via CAN has never been inactive in the current operating cycle although it can be assumed that the vehicle was not permanently braked. Possible causes are: Defect at the brake switch that permanently causes a valid brake request. The sending control unit does not deliver a brake torque '0' via CAN. Place of action No description available. Instruction Check whether the brake switch provides a brake signal '0'. Check the CAN message and contact the manufacturer of the transmitting control unit if necessary. (With SAE J1939: TSC1 (torque/speed controller #1), 'override control mode'; TSC1 (torque/speed controller #1), 'requested torque' / 'torque limit' ). Setting conditions of the event No description available. Test conditions of the event No description available. Troubleshooting
|  | NOTE The following service work may only be performed by persons who are authorised by the vehicle manufacturer: Loading software and/or datasets into the transmission control unit. Service work at vehicle components which are not included in the VOITH delivery.
Check whether the brake switch can supply the signal identification "0". The CAN-message for the brake request is set in the dataset: Brake request via brake pedal position: EBC1 CAN signal brake pedal position Brake request via braking torque: TSC1 CAN signal override control mode; requested torque Contact the manufacturer of the sending control unit. 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 the function. After the fault has been eliminated, the following steps have to be carried out: Conduct a test drive with function check. Read out the fault memory. Check the transmission for leaks. Perform a final visual inspection. These steps are necessary to ensure the entire vehicle functions. See also:
|  | CAN SAE J1939 Voith specifics (SW E300-D2.3.0.0)
|  | CAN SAE J1939 Voith specifics (SW E300-D2.4.0.0)
|  | CAN SAE J1939 Voith specifics (SW E300.1-D5.0.0.0)
|  | Aftersales service index
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