See also:

Readiness for Inspection/Maintenance (I/M) test
A vehicle equipped with All-Wheel Drive (AWD) should never be tested using a two wheel dynamometer (such as the dynamometers used by some states for emissions testing), or similar equipment. M ...

Engine oil pressure gauge (if so equipped)
Engine oil pressure gauge (if so equipped) The gauge indicates the engine lubrication system oil pressure while the engine is running. When the engine speed is high, the engine oil pressure ...

Side ventilators
Side ventilators Open or close, and adjust the air flow direction of ventilators as illustrated. ...