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OBD code of: "P1250- PRC Solenoid Circuit Malfunction. Which malfunction of Fuel Pressure Regulator Control unit. PRC is located
by the fuel pump by the left side on the bottom rail under some plastic you will find it. PRC costs about $90.
Code P1250 is PRC malfunction, Which is for Fuel Pressure Regulator Control unit. I have answered this question already. PRC is on the Bottom fuel rail by the fuel pump by the left side under some plastic covers.
Diagnostic Test Code (DTC) P1250 is a manufacturer - specific code which has a general description of "Pressure Regulator Control (PRC) Solenoid Circuit Malfunction".
The PCM monitors input voltage at Pin number 44 when the ignition is turned on. DTC P1250 sets when less than .44 volts are present. The possible causes are: > PRC Valve malfunction (open or shorted internally) > Open or short circuit between the PRC valve and the PCM (control circuit) > Open or short circuit in the solenoid ignition voltage supply circuit > Failed PRC valve (stuck open) > Malfunctioning PCM
Yes, some systems (newer PowerEdge Servers, generally 6/7th Generation and above) have onboard VRMs.
1600sc is a 6th gen PowerEdge (with Simple Computing). I can checked and be absolute certain from within Dell. I'm on VAC until Saturday.
In the meantime, check the PRC model and revision and ensure that they match. Given that a single PRC POST/Boots, try upgrading (if not already) the system BIOS to latest revision.
If the PRC model/revision does match and you have the latest BIOS version, also if the VRMs are not needed, then from the Troubleshooting you have already done, we may conclude that the PRC 2 slot is faulty.
I will confirm the VRM query on Saturday.
PowerEdge 1600SC, BIOS A12 Update Package for Microsoft Windows - http://ftp.us.dell.com/bios/PE1600SC-BIOS-WIN-A12.exe
PowerEdge 1600SC, BIOS A12 Floppy Update Package - http://ftp.us.dell.com/bios/PE1600SC-BIOSA12.exe
Mike
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