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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.
Service / Mode $03 lists the emission-related "confirmed" diagnostic trouble codes stored. It either displays numeric, 4 digit codes identifying the faults or maps them to a letter (P, B, U, C) plus 4 digits. See #OBD-II_diagnostic_trouble_codes. Service / Mode $04 is used to clear emission-related diagnostic information. This includes clearing ...
A good example to start with is the Nissan VG30DETT engine. It belongs to the VG engine family, displaces 30 deciliters (3.0 liters), and the feature letters describe an engine with dual overhead camshafts, electronic port fuel injection and two turbochargers. The next example is the Nissan VQ35DE engine.
The first Nissan/Jatco transmission, the Jatco 3N71 transmission, used a simple naming scheme: the "3" meant "3-speed", and the remainder was the series number.
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.
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1939–1941 Nissan Type 50; 1941 Nissan Type 30; 1941 Nissan Type 53; 1941–1952 Nissan 180 Truck (based on the 1937–1941 Chevrolet 133/158 trucks) 1941–1949 Nissan 190 Bus; 1949-1951 Nissan 290 Bus; 1952–1953 Nissan 380 Truck 1952-1953 Nissan 390 Bus; 1953–1955 Nissan 480 Truck 1955 Nissan 482 Truck; 1953–1955 Nissan 490 Bus 1955 ...
Clears diagnostic trouble codes (DTC's) from ECU memory. DTC grouping is used to loosely identify fault locations in undocumented ECU's. 0x14 00 00 00 to FF FF FF clears specific powertrain DTC's; 0x14 40 00 00 to 7F FF FF clears specific chassis DTC's; 0x14 80 00 00 to BF FF FF clears specific body DTC's