Logo

P0556 Engine Trouble Code

P0556 Engine

When you check engine light came on code P0556 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 P0556 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P0556 code can be about replacing a broken oxygen sensor can eventually lead to a busted catalytic convertor which can cost upwards of $2,000. Taking your car into a shop will cost you around $200 depending on the car. However, an oxygen sensor is easy to replace on many cars and is usually detailed in the owner's manual. If you know where the sensor is, you only have to unclip the old sensor and replace it with a new one. Regardless of how you approach it, you should get this fixed right away.

P0556 Code Meaning :

P 0 5 5 6
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Intake Valve Control Solenoid Circuit Low Fuel Composition Sensor Circuit Malfunction Turbocharger Boost Sensor A Circuit Low Reverse Input Circuit

Regarding the P0556 code, it would probably be worthwhile to carefully inspect the wire harness near the intake manifold bracket. This is done most easily from below the car in the area near the oil filter.

P0556 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P0556 OBD-II Trouble Code Brake booster pressure sensor is connected to brake booster by a hose. It detects brake booster pressure and sends the voltage signal to the Engine Control Module ( P0556 code.

Reason For P0556 Code

The reason of P0556 OBD-II Engine Trouble Code is Fuel Composition Sensor Circuit Malfunction.

Parts or components should not be replaced with reference to only a P0556 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.