Polo Mk3
|
Definitions
Definitions
These explanations refer only to this assembly group: Self-diagnosis for ABS. These definitions are not necessarily generally valid. ABS Anti-locking brake system. Further information on the ABS can be found in the relevant self-study programmes. Display group number => Read measured value block TCS Traction control system Data bus Transportation of data. To do this the electrical signals are brought into a certain format (BUS). Further information on this can be found in Self-study programme No.180 and186. Data bus low (high) The voltage used to transport the data is low (high). Further information on this can be found in self-study programme no. 186. Speed sensor Sends speed signals to control unit. EBD Electronic brake pressure distribution EDL Electronic differential lock Self-diagnosis The capability of the control unit:
to register faults and make them available in the read measured value block. Further information on this can be found in Self-study programme No.180 and test unit instruction manual. Performing self-diagnosis Connecting the fault reader to be able to interrogate the fault memory. Further information on this can be found in Self-study programme No.180 and test unit instruction manual. Performing electrical check A targeted check of the electronic components by performing certain measurements. ESP Electronic stability programme No communication There is no connection for exchanging information between the control units. Further information on this can be found in Self-study programme No. 180. Yaw rate sender -G202 Recognises the rotational movement of the vehicle along its vertical axis in relation to vehicle speed. Steering angle sender -G85 Registers the course and direction driver wishes to take. Data transfer to control unit is via data bus wiring. Short to earth Current flows -incorrectly- to earth without supplying a consumer. Short to positive Current flows -incorrectly- to a live component without supplying a consumer. Brake pressure solenoid trip switch -F84 The trip switch is installed in the brake servo and is required by the control unit to recognise the braking desired by the driver. Brake pressure solenoid -N247 The brake pressure solenoid is installed in the brake servo and ensures that a pre-pressure of 10 bar is available for the ABS/ESP pump. Read measured value block The control unit can transfer a considerable amount of test data. This test data delivers information on the operational condition of the system and/or sensors connected to it. In many cases the transferred test data supports fault finding and fault rectification. The test data has been summarized into single display groups because all the information cannot be evaluated at the same time. The information can be selected via display group numbers. EBC Engine braking control Lateral acceleration sender -G200 The lateral acceleration sender is used to register the speed through curves/bends in the road and decides which side of the vehicle the ESP is to brake. Brake pressure sender -G201-/-G214 Recognises the pressure exerted by the driver and is required to control the pressure of the pre-pressure system. Programme card version Always use the most up-to-date programme card. Further information can be found in the test unit operating instructions. Sporadic Happens occasionally Infinity ω The resistance is infinite, open circuit. ω = Ohm |