Check P0503 Fault Code

When you check engine light came on code P0503 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However your vehicle's manufacturer may have a different definition for the P0503 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

Parts or components should not be replaced with reference to only a P0503 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.

P0503 Possible Fix :

There are a number of reasons which can cause a car engine not to start, the most common, of course, being a dead battery. Pay special attention to the noise it makes when you turn the key. Is the car completely silent? If so, there may be a problem with your battery terminal cable connections. Does your car crank over but not start? Then it may be your spark plugs or fuel supply to your engine. In any case, if you're out on the road, try jumpstarting your car then investigating the cause further when you're safely back at home.

P0503 OBD-II Diagnostic Powertrain (P) Trouble Code Description P0503 OBD-II Trouble Code The vehicle speed sensor outputs a 4 pulse signal for every revolution of the rotor shaft, which is rotated by the transmission output shaft via the driven gear. After this signal is converted into a Reason For P0503 Code The reason of P0503 OBD-II Fault Code Check is P0503 Vehicle Speed Sensor A Intermittent/Erratic/High.

P0503 Solution:

The firing order is an important part of the overall design of the engine and is determined during the design of the engine to eliminate as much engine vibration as possible. If the firing order is changed or adjusted, the ignition from the spark plug is delivered at the wrong time and the engine functions poorly or does not run. The firing order for a particular engine is typically found in the repair manual specific to that model.

What does fault code P0503 mean ? What does a diagnostic reading P0503 mean ? How to fix OBD2 Code P0503 ? What do we know about P0503 code ?

How to Clear P0503 Trouble Code

An OBD 2 scanner is the best and safest way to erase a DTC from your car's system. This scanner communicates with the car's computer and instructs the computer to erase the code. It does not change or tweak the settings from inside the car or its systems.