Specifications

Symptom List:
P2151-FUEL PRESS SOLENOID SIGNAL PLAUSIBILITY HIGH
P2151-FUEL PRESS SOLENOID SIGNAL PLAUSIBILITY LOW
P2500-FUEL PRESSURE SOLENOID CIRCUIT OPEN CIRCUIT
P2501-FUEL 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
SIGNAL PLAUSIBILITY HIGH.
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