Description:

Error code ECU 001348.05 is triggered when the ECU detects that the circuit resistance for fuel pressure control valve 2 is too high, indicating an open circuit. This condition can prevent the valve from operating correctly, affecting fuel pressure regulation.

Reaction:

The ECU may limit or adjust engine performance to compensate for the improper operation of the fuel pressure control valve.

Recommendations:

• Inspect Wiring and Connectors: Check the wiring and connectors leading to fuel pressure control valve 2 for signs of damage, corrosion, or loose connections that could cause high resistance.
• Measure Circuit Resistance: Use a multimeter to measure the resistance in the control valve circuit. High resistance readings confirm an open circuit.
• Check for Open Circuits: Inspect the wiring for any breaks or disconnects. Pay close attention to the harness and connectors.
• Test Control Valve Operation: Verify that the fuel pressure control valve 2 is functioning correctly and responding to ECU commands.
• Repair or Replace Faulty Components: Address any identified issues by repairing or replacing damaged wires, connectors, or the control valve itself.
• Reset ECU and Verify Operation: After making the necessary repairs, reset the ECU to clear the error code and test the system to confirm that the control valve operates correctly and no further errors are detected.

Note:

Maintaining proper current and resistance levels in the fuel pressure control valve circuit is essential for reliable fuel pressure control. Regular inspections and timely repairs can help prevent open circuit issues.