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C2556 Engine Trouble Code

Meaning of C2556 engine trouble code is a kind of chassis trouble code and 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.

C2556 Fault Symptoms :

  1. Check engine light comes on
  2. Engine stalling or misfiring
  3. Engine performance issues
  4. Car not starting
If one of these reasons for C2556 code is occuring now you should check C2556 repair processes.
Now don't ask yourself; What should you do with C2556 code ?
The solution is here :

C2556 Possible Solution:

C2556 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.

C2556 Code Meaning :

C 2 5 5 6
OBD-II Diagnostic Chassis (C) 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.

C2556 OBD-II Diagnostic Chassis (C) Trouble Code Description

C2556 engine trouble code is about Ignition Coil A Primary/Secondary Circuit Malfunction.

Main reason For C2556 Code

The reason of C2556 OBD-II Engine Trouble Code is Fuel Composition Sensor Circuit Malfunction.

C2556 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.