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Model code of a Toyota Yaris (XP150) written on the VIN plate. The following model codes have been used by Toyota. The letters of the model code is found by combining the letters of the engine code with the platform code. If the engine code and the platform code have two letters each, the middle letter is computed according to this formula: [1] [2]
Each of the EOBD fault codes consists of five characters: a letter, followed by four numbers. [26] The letter refers to the system being interrogated e.g. Pxxxx would refer to the powertrain system. The next character would be a 0 if complies to the EOBD standard. So it should look like P0xxx. The next character would refer to the sub system.
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.
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Every Toyota vehicle has a model code which describes the basic vehicle (e.g. Corolla), its generation and major options (engine type, gearbox type, body style, grade level). The model codes fall into three periods, 1937 to late 1950s, late 1950s to late 1970s and late 1970s to present.
Other manufacturers may modify the engine after it has left the Toyota factory but the engine still keeps the original Toyota designation. For example, Lotus added a supercharger to the 2ZZ-GE in some versions of the Lotus Elise and Exige, but the engine is still labelled 2ZZ-GE, not 2ZZ-GZE.
The Toyota Motor Corporation of Japan has been active in the North American market since 1957, [3] made its manufacturing investment in North America in 1972 with the establishment of a company now known as Toyota Auto Body California, [4] and established its first production line in the US in 1986 at NUMMI (New United Motor Manufacturing, Inc.), a joint-venture with General Motors.
Delco ECU used in General Motors vehicles built in 1996. An engine control unit (ECU), also called an engine control module (ECM), [1] is a device that controls various subsystems of an internal combustion engine.