subject: Walk The Car Open [print this page] Unclear if the judge can try to walk the car open, conscious of the curve on the rotating steering wheel, steering systems work, testing can somewhere under the steering response and occurrence of abnormal sound judgments steering system failure. For the engine failure, we must check the functioning of the engine, test persons with different speed or acceleration and deceleration operation of the engine, to use their experience to observe the functioning of the engine, the sound of the engine to use their experience to auscultation, normal faults can be found.
When a photo is not on, doubt no power when the circuit can be used to end a wire short-circuit test program on the fire inspection, and fire can be judged as an electric circuit, without further investigation the fire. However, many lines with fuse and relay, test fire must be cautious. The normal operation of motor vehicles and engines have a certain regularity, is not the normal occurrence of a fault, can not test out the normal, normal and abnormal for the judge, should have done theoretical and empirical guidance.
Auto voltmeter indicating the vehicle electrical system voltage, the road also can accurately determine the power generator and battery charge situation; when using an electrical switch when the voltage meter has to reflect, that can be used to judge electrical equipment works properly.
Automobile non-contact tachometer, you can more accurately measure the real-time engine speed, driving instructed the engine speed, engine speed time to time direct gear changes, with the engine tachometer, engine can be some glitches from the tachometer reflected.
