CAN-pushbutton switch E330 No access authorization for the write access of the transmission control unit
|  | 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 A fault has occurred while the transmission control unit was writing data into the gear range selector. The transmission control unit has no authorization for the write access. Effects on the driving operation Modifications of gear range selector specifications could not be finished successfully. Possible causes CAN communication fault. Software fault: wrong transmission control unit software. Place of action No description available. Instruction Check whether the two components gear range selector and transmission control unit are compatible with each other. 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.
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