OBD II Fault Code P1057 :

Description of OBD II Fault code P1057

FUEL RAIL PRESSURE CONTROL VALVE CIRCUIT OPEN

Possible failuer of OBD II Fault code P1057

• Metering Unit Actuator internal open
• M-PROP Actuator harness open

Diagnostic Procedure using AutoHex auto Scan tool tester

• When minute current is drawn on the inactive drive circuit, the open which can't be drawn the current is detected for a set period of time.

Test Conditions using AutoHex Scan tool tester

• IG ON (II) and when the OFF direction of Metering Unit energization

Clear Fault codes Conditions

• When minute current is drawn on the inactive drive circuit, the open which can't be drawn the current is detected for a set period of time.

MIL Status

• Check Engine Light ON

Note:

• AutoHex is a professional OBD /OBD II diagnostic scanner / scan tool tester.
• This fault code is a GERENRIC fault code, some cars may change the meaning of this fault code.
  To get the accurate fault code description you may use AutoHex OBD scanner

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