<Tr> <Td> $3 E </Td> <Td> $7 E </Td> <Td> Tester Present </Td> <Td> If no communication is exchanged with the client for a long time, the control unit automatically exits the current session and returns to the "Default Session" back, and might go to sleep mode . Therefore, there is an extra service which purpose is to signal to the device that the client is still present . </Td> </Tr> <Tr> <Td> $83 </Td> <Td> $C3 </Td> <Td> Access Timing Parameters </Td> <Td> In the communication between the controllers and the client certain times must be observed . If these are exceeded, without a message being sent, it must be assumed that the connection was interrupted . These times can be called up and changed . </Td> </Tr> <Tr> <Td> $84 </Td> <Td> $C4 </Td> <Td> Secured Data Transmission </Td> <Td> </Td> </Tr> <Tr> <Td> $85 </Td> <Td> $C5 </Td> <Td> Control DTC Settings </Td> <Td> Enable or disable the detection of any or all errors . This is important when diagnostic work is performed in the car, which can cause an anomalous behavior of individual devices . </Td> </Tr>

The sensor and output status data stored when a dtc is set is called