Brake switch signal source for service foot brake switch 3-stage Brake switch input 2 and 3 inadmissibly active
|  | 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 Brake switch input 2 and 3 inadmissibly active. Effects on the driving operation No retarder function. No brake pedal position, thus possible consequences are: No ANS. No engaging of gears. Possible causes Implausible brake switch signals have occurred which indicate that the input is never active. The following causes are possible: - Cable break. - Short-circuit to the 'inactive side' of the input signal. (The 'inactive side' is derived from the content of the dataset constant that is relevant for the signal configuration.) Place of action No description available. Instruction Check plug connections, cabling and brake switch, if applicable. 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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