Brake signal source 3-stage foot brake pedal Brake switch input 1 and 2 inadmissibly inactive
|  | Description
|  | Effects on the driving operation
|  | Possible causes
|  | Place of action
|  | Instruction
|  | Setting conditions of the event
|  | Test conditions of the event
|  | Final function check
|  | See also:
Description Brake signal input 1 and 2 inadmissibly inactive Effects on the driving operation No retarder activation. No brake pedal position available, thus possible consequences are: * No ANS. * No gear accepted (no drive mode). 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-in contacts, cabling and brake switch. Setting conditions of the event No description available. Test 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 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:
|  | Aftersales service index
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