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The oil pressure idiot light lights when engine oil pressure drops below a predetermined level. The light normally appears when the vehicle ignition is turned on, but the engine is not running, as it detects no oil pressure due to the oil pump not operating (the oil pump is powered off the crankshaft, so only operates when the engine is running ...
A check engine light or malfunction indicator lamp (MIL), is a tell-tale that a computerized engine-management system used 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.).
When one of these errors occurs, usually it will turn on the "check engine" light on the dashboard. The PCM is one of potentially several on-board computers, or essentially the "brain" of the engine control system.
I am having an electrical problem with my 2008 Nissan Altima — all the lights on the dashboard flicker on and off at random times.
Even more advanced devices allow users to reset engine DTC codes, effectively turning off engine lights in the dashboard; however, resetting the codes does not address the underlying issues and can in worst-case scenarios even lead to engine breakage where the source issue is serious and left unattended for long periods. [36] [37]
Pushing the clutch pedal disengages the engine from the powertrain like wheels, drive shafts and gearbox. Releasing the accelerator makes the engine slow down to idle. Turning off the ignition has further effects. Pulling the key causes locking of the steering wheel. Some vehicles switch off headlights or brake lights when the ignition is ...
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Light guides are commonly used to distributively light dashboard displays, [155] and premium vehicles are beginning to use distributive systems for lighting such items as door locks, window controls, and cup holders. [156] Distributive exterior lighting has also been explored, with high-intensity central light sources. [157]