B2543 Engine Error Code
When you check engine light came on code B2543 the reason should be . However your vehicle's manufacturer may have a different definition for the B2543 OBD-II Diagnostic Body (B) Trouble Code. So you should chech it on your car models.
Reason For B2543
B2543 OBD2 specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.
B2543 OBD-II Diagnostic Body (B) Trouble Code DescriptionB2543 Aux A/C Control Switch Reference Circuit Short to Ground so you have to check ODB-II Engine Error Code list.
B2543 Code Review :The reason of B2543 OBD-II Engine Error Code is B2543 Aux A/C Control Switch Reference Circuit Short to Ground.
How To Recognise B2543
Overheating can be caused by a few different factors. The simplest cause may be that your car needs more coolant. Yet depleted coolant can be caused by bigger problem, like leaks or faulty hoses, so always check for the underlying cause before simply filling it up with more. Another common reason for overheating may be that the radiator fan which keeps your engine cool is faulty, so check your fan motor connection and fan thermostat.