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Unfortunately, the definition of which signals were present on each pin varied between vehicle models. There were generally only three pins used for basic ALDL —ground, battery voltage, and a single line for data—, although other pins were often used for additional vehicle-specific diagnostic information and control interfaces.
For ALDL connections, pin 9 is the data stream, pins 4 and 5 are ground, and pin 16 is the battery voltage. An OBD 1.5 compatible scan tool is required to read codes generated by OBD 1.5. Additional vehicle-specific diagnostic and control circuits are also available on this connector.
English: OBD-II type B female connector shape and pinout (The pins inside the connector are female, while the connector itself —the plastic body— is male). Español: Aspecto y posición de los contactos en un conector OBD-II hembra (los contactos son hembra, pero el cuerpo del conector es macho).
OBD-II PIDs (On-board diagnostics Parameter IDs) are codes used to request data from a vehicle, used as a diagnostic tool. SAE standard J1979 defines many OBD-II PIDs. All on-road vehicles and trucks sold in North America are required to support a subset of these codes, primarily for state mandated emissions inspections .
The ELM327 is a programmed microcontroller produced for translating the on-board diagnostics (OBD) interface found in most modern cars. The ELM327 command protocol is one of the most popular PC-to-OBD interface standards and is also implemented by other vendors.
The role “ground” may be ambiguous in systems that isolate different kinds of grounds (typical isolated grounds are analog signal ground, digital signal ground, AC power ground, DC power ground, and chassis ground). If different kinds of ground paths are in separate paths in a connector, the analysis should treat them as separate signals.
Pin 13: RGB Red ground (pin 15 ground) Pin 14: Usually Data signal ground (pins 8, 10 & 12 ground) Pin 15: RGB Red up S-Video C up Component P R up: Pin 16: Blanking signal up RGB-selection voltage up 0–0.4 V → composite; 1–3 V → RGB; Pin 17: Composite video ground (pin 19 & 20 ground) Pin 18: Blanking signal ground (pin 16 ground) Pin ...
Ford has released fixes of the seals and updated clutch kits. There were also issues with the transmission control module such as faulty connector pins, shifter motors failing, and a poorly connected main ground wire due to paint on threads or an incorrect bolt being used during assembly. These transmissions were still installed into Focus and ...
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