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P0256 Engine Trouble Code

P0256 Engine

When you check engine light came on code P0256 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 P0256 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

When your car's 'P0256 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off.

P0256 Code Meaning :

P 0 2 5 6
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Intake Valve Control Solenoid Circuit Low Ambient Air Temperature Sensor Circuit Low Turbocharger Boost Sensor A Circuit Low Reverse Input Circuit

The poor running symptoms are consistent with a MAP sensor malfunction. In addition, in some cases, a bad MAP sensor will not throw a code. Again, the ELD code likely represents a separate wiring issue.

P0256 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P0256 engine trouble code is about Reverse Input Circuit.

Reason For P0256 Code

The reason of P0256 OBD-II Engine Trouble Code is Ambient Air Temperature Sensor Circuit Low.

P0256 DTC 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.