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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.
The fuel tank filler pipe has a seal, either mechanical or liquid, to stop vapors from escaping the filler tube. A mechanical seal is usually an annular elastomeric material through which the nozzle must pass during refueling, preventing vapors from escaping alongside the nozzle.
A group of tell-tales showing lights for "brake fluid", "stop lamp" and "check engine" Graphical tell-talesA tell-tale, sometimes called an idiot light [1] or warning light, is an indicator of malfunction or operation of a system, indicated by a binary (on/off) illuminated light, symbol or text legend.
The investigation, which involves 1.3 million Jeep Cherokees from 2014 through 2020 model years, is looking into 80 reports of problems with the vehicle's electronic parking brake module.
A check engine light or malfunction indicator lamp (MIL), is a tell-tale that a computerized engine-management system uses to indicate a malfunction or problem with the vehicle ranging from minor (such as a loose gas cap) to serious (worn spark plugs, engine problems or a faulty oil valve, etc.).
1995 Cadillac Seville disengaged emissions controls whenever heat or air conditioning was on. In 1995, General Motors was ordered to recall 470,000 model year 1991 through 1995 Cadillacs and pay an $11 million fine for programming the car's electronic control unit (ECU) to enrich the fuel mixture any time the car's air conditioning or cabin heat was operating, since the EPA tests are conducted ...
In "4-Lo" mode, the input shaft drives through a 2.72:1 reduction planetary gear set and the front and rear axles are locked together through the clutch pack. This same NV247 transfer case is the foundation for the Quadra-Drive system described below. In 2005 Jeep replaced the New Venture Gear NV247 transfer case with the NV245 transfer case ...
In semiconductor devices, parasitic structures, irrelevant for normal operation, become important in the context of failures; they can be both a source and protection against failure. Applications such as aerospace systems, life support systems, telecommunications, railway signals, and computers use great numbers of individual electronic ...