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B2556 Engine Trouble Code

Meaning of B2556 engine trouble code is : Theoretically you can drive for a few weeks or even months with a broken MAF sensor. You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. At a shop, the replacement cost is between $200-$300 depending on the car, but that's usually the cost of parts because the labor is relatively simple.

B2556 Possible Solution:

B2556 Engine

Power Steering Pressure (PSP) Switch Malfunction In Key On, Engine Off Self-Test, this DTC indicates the PSP input to the PCM is high. In Key On, Engine Running Self-Test, this DTC indicates that the PSP input did not change state. Steering wheel must be turned during Key On, Engine Running Self-Test PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged.

B2556 Code Meaning :

B 2 5 5 6
OBD-II Diagnostic Body (B) Trouble Code For Engine Fuel And Air Metering (Injector Circuit Malfunctions Only) Fuel Composition Sensor Circuit Malfunction Cylinder 1 Injector Circuit Low Ignition Coil A Primary/Secondary Circuit Malfunction

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.

B2556 OBD-II Diagnostic Body (B) Trouble Code Description

B2556 engine trouble code is about Ignition Coil A Primary/Secondary Circuit Malfunction.

Reason For B2556 Code

The reason of B2556 OBD-II Engine Trouble Code is Fuel Composition Sensor Circuit Malfunction.

B2556 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.