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C0594 Engine Trouble Code

Meaning of C0594 engine trouble code is : When your car's 'C0594 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.

C0594 Possible Solution:

C0594 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.

C0594 Code Meaning :

C 0 5 9 4
OBD-II Diagnostic Chassis (C) Trouble Code For Engine Intake Valve Control Solenoid Circuit Low Fuel Composition Sensor Circuit Malfunction Crankshaft Position Sensor A Circuit Malfunction Timing Reference High Resolution Signal A Too Many Pulses

Is the fuel pump sometimes not priming when you turn the key to ON(II)? Start by measuring the fuel pressure and checking whether you have bright white-bluish spark at all four plugs. The mechanical timing is also something that you should check, as we mentioned above.

C0594 OBD-II Diagnostic Chassis (C) Trouble Code Description

C0594 engine trouble code is about Timing Reference High Resolution Signal A Too Many Pulses.

Reason For C0594 Code

The reason of C0594 OBD-II Engine Trouble Code is Fuel Composition Sensor Circuit Malfunction.

C0594 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.