The EOBD central diagnostic socket is built into Body Computer M001 connector C.It is supplied directly by the battery at pin 16 of the line protected by fuse F39 of underfacia control unit B002 ; pins 4 and 5 are earthed.Pin 1 is connected to the K line at the ABS/ESP control unit M051 (pin 6) See E7020 ABS See E7023 ESPPin 7 is connected via the K line to the engine management control unit M010 (pin 25 of connector A) and, on versions with automatic transmission, to the automatic transmission control unit M055 (pin 4 of connector A). See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENTPin 13 is connected to the tyre inflation pressure control unit M047 (pin 17 of connector B). See E7060 TYRE INFLATION PRESSURE CONTROL SYSTEMThe gas discharge headlamp control units F010 (left) and F011 (right), the additional heater control unit M075 (pin 5) and the electric steering control unit M086 (pin 2 of connector C) are connected at pin 12. See E2011 DIPPED HEADLAMPS See E6015 ADDITIONAL HEATER See E7045 ELECTRIC STEERINGPins 6 and 14 are connected to the B-CAN; the following are controlled and "diagnosed" via this network: the junction unit under the dashboard B002, the instrument panel E050, the driver''s door control unit M066, the passenger door control unit M067 and the luggage compartment control unit M063, the steering lock control unit M089, the radio (or built-in radio-telephone-navigator) P020, the climate control system control unit M070, the parking sensor control unit M084, the radio controls on the steering wheel control unit M093, the Air Bag control unit M060, the left seat position control unit M173, the right seat position control unit M175 and the T.E.G. Reader H003.