DaimlerChrysler Jeep Grand Cherokee 2002 Service Manual page 175

Symptom List:
P1131-FUEL PRESSURE SOLENOID OPEN CIRCUIT
P1131-FUEL PRESSURE SOLENOID POWERSTAGE ERROR
P1131-FUEL PRESSURE SOLENOID SHORT CIRCUIT
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be P1131-FUEL PRESSURE SOLE-
NOID OPEN CIRCUIT.
When Monitored and Set Condition:
P1131-FUEL PRESSURE SOLENOID 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.
P1131-FUEL PRESSURE SOLENOID POWERSTAGE ERROR
When Monitored: When the ignition is turned off.
Set Condition: The ECM detects engine speed does not fall below 650 RPM within 1.5
second after ignition off.
P1131-FUEL PRESSURE SOLENOID SHORT CIRCUIT
When Monitored: With the ignition on.
Set Condition: The ECM detects a short to voltage on the Fuel Pressure Solenoid Control
circuit.
INTERMITTENT CONDITION
ASD RELAY OUTPUT CIRCUIT OPEN
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
POSSIBLE CAUSES
167
DRIVEABILITY - DIESEL