Description:

This error code, ECU 001347.06, is set when the ECU detects low resistance in the circuit of fuel pressure control valve 1, indicating a short to ground. This condition can cause the control valve to malfunction, affecting fuel pressure regulation.

Reaction:

The ECU may limit or adjust the operation of the control valve to prevent potential damage due to the low resistance.

Recommendations:

• Inspect for Short Circuits: Check the wiring and connectors for the fuel pressure control valve 1 for signs of short circuits to ground. Look for damaged insulation, frayed wires, or loose connections.
• Measure Circuit Resistance: Use diagnostic tools to measure the resistance in the control valve circuit. Low resistance readings confirm a short circuit.
• Repair or Replace Damaged Wiring: Fix any identified short circuits by repairing or replacing faulty wiring, connectors, or terminals. Ensure all connections are secure and properly insulated.
• Test Control Valve Operation: Verify that the control valve operates correctly when the ECU sends the signal. If the valve does not respond, it may be defective.
• Replace Faulty Control Valve: If the control valve is found to be defective, replace it with a new one to ensure proper operation.
• 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:

Proper maintenance of the control valve wiring and connections is essential to avoid short circuits and ensure reliable fuel pressure regulation. Regular inspections and timely repairs can help maintain the integrity of the electrical system.