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Symptom List: P2151-FUEL PRESS SOLENOID SIGNAL PLAUSIBILITY HIGH PRESSURE SOLENOID CIRCUIT SHORTED TO GROUND OR B+ Test Note: All symptoms listed above are diagnosed using the same tests. The title for the tests will be P2151-FUEL PRESS SOLENOID When Monitored and Set Condition: P2500-FUEL PRESSURE SOLENOID CIRCUIT OPEN CIRCUIT When Monitored: With the ignition on. Set Condition: The ECM detects an open or short to ground on the Fuel Pressure Solenoid Control circuit. P2501-FUEL PRESSURE SOLENOID CIRCUIT SHORTED TO GROUND OR B+ When Monitored: With the ignition on and the ECM attempting to actuate the Fuel Pressure Solenoid. Set Condition: The ECM detects excessive current on the Fuel Pressure Solenoid Control circuit when attempting to actuate the Fuel Pressure Solenoid. POSSIBLE CAUSES CHECKING THE ENGINE CONTROL RELAY SYSTEM INTERMITTENT CONDITION FUEL PRESSURE SOLENOID CONTROL SHORTED TO VOLTAGE FUEL PRESSURE SOLENOID CONTROL CIRCUIT SHORTED TO GROUND FUEL PRESSURE SOLENOID CONTROL CIRCUIT OPEN FUEL PRESSURE SOLENOID ENGINE CONTROL MODULE 173 DRIVEABILITY - DIESEL |