CAN-pushbutton switch E330 Operating voltage outside tolerance limit
|  | 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 operating voltage of the gear range selector is outside the allowed tolerance compared to the operating voltage of the transmission control unit. The admissible deviation is +/-5V. Effects on the driving operation The flexible inputs and the flexible output at the gear range selector are non-functional. Possible causes Ground potential difference between the transmission control unit and the gear range selector. Smaller operating voltage of the gear range selector than the transmission control unit. The analog-to-digital converter in the gear range selector is defective. Place of action No description available. Instruction Check voltage difference between gear range selector and transmission control unit. The operating voltage difference measured against the respective ground potential of the control unit must not exceed 5V. Check cabling. 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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