P2296-FUEL PRESSURE SOLENOID SHORT CIRCUIT

For a complete wiring diagram Refer to Section 8W

When Monitored:
With the ignition on and the ECM Fuel Pressure Solenoid command on.
Set Condition:
The ECM detects excessive current on the Fuel Pressure Solenoid Control circuit for 0.28 second.

Possible Causes

FUEL PRESSURE SOLENOID CIRCUIT(S) SHORTED TO GROUND

FUEL PRESSURE SOLENOID CIRCUIT(S) SHORTED TO VOLTAGE

FUEL PRESSURE SOLENOID CIRCUIT(S) SHORTED TOGETHER

FUEL PRESSURE SOLENOID OPEN CIRCUIT(S)

INTERMITTENT CONDITION

FUEL PRESSURE SOLENOID

ENGINE CONTROL MODULE

Diagnostic Test

1.CHECK FOR ACTIVE DTC

NOTE: If the ECM detects and stores a DTC, the ECM also stores the engine/vehicle operating conditions under which the DTC was set. Some of these conditions are displayed on the scan tool at the same time the DTC is displayed.

NOTE: Before erasing stored DTCs, record these conditions. Attempting to duplicate these conditions may assist when checking for an active DTC.

WARNING: HIGH-PRESSURE FUEL LINES DELIVER DIESEL FUEL UNDER EXTREME PRESSURE FROM THE INJECTION PUMP TO THE FUEL INJECTORS. THIS MAY BE AS HIGH AS 23,200 PSI (1600 BAR). USE EXTREME CAUTION WHEN INSPECTING FOR HIGH-PRESSURE FUEL LEAKS.

WARNING: FUEL UNDER THIS AMOUNT OF PRESSURE CAN PENETRATE SKIN CAUSING PERSONAL INJURY OR DEATH. INSPECT FOR HIGH-PRESSURE FUEL LEAKS WITH A SHEET OF CARDBOARD. WEAR SAFETY GOGGLES AND ADEQUATE PROTECTIVE CLOTHING WHEN SERVICING FUEL SYSTEM.

Did this DTC set again?

Yes

Go To2

Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)

2.CHECKING FOR OTHER DTCS

NOTE: An open ASD power supply to the ECM will cause multiple DTC's including this DTC to set.

NOTE: Check the ECM for other DTC's. If other DTC's are set with this DTC refer to the symptom list and perform the CHECKING THE ECM POWER AND GROUND CIRCUITS test before continuing.

Are the ECM power and ground circuits functioning properly?

Yes

Go To3

Refer to the *CHECKING THE ECM POWER AND GROUND CIRCUITS Diagnostic Procedure. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING) .

3.FUEL PRESSURE SOLENOID CIRCUIT(S) OPEN

Is the resistance below 10.0 ohms for each measurement?

Yes

Go To4

Repair the circuit(s) that measured above 10.0 ohms for an open.
Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).

4.FUEL PRESSURE SOLENOID CIRCUIT(S) SHORTED TO GROUND

Is the resistance above 1000 ohms for each measurement?

Yes

Go To5

Repair the circuit(s) that measured below 1000 ohms for a short to ground.
Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).

5.FUEL PRESSURE SOLENOID CIRCUIT(S) SHORTED TOGETHER

Is the resistance above 1000 ohms?

Yes

Go To6

Repair the Fuel Pressure Solenoid circuits for a short together.
Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).

6.FUEL PRESSURE SOLENOID CIRCUIT(S) SHORTED TO VOLTAGE

Is the voltage below 1.0 volt for each measurement?

Yes

Go To7

Repair the circuit(s) that measured above 1.0 volts for a short to voltage.
Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).

7.FUEL PRESSURE SOLENOID

NOTE: The scan tool should display P2294-FUEL PRESSURE SOLENOID OPEN CIRCUIT.

NOTE: The scan tool should display P2296-FUEL PRESSURE SOLENOID SHORT CIRCUIT.

Does the scan tool display the appropriate DTC for each condition?

Yes

Replace the Fuel Pressure Solenoid in accordance with the Service Information.
Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).

Replace and program the Engine Control Module in accordance with the Service Information.
Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).