Description:

Error code ECU 000676.06 is triggered when the ECU detects a current that is too high in the circuit of the relay for the electric starting aid, indicating a short circuit to ground. This can cause the glow plugs to receive excessive current, potentially leading to overheating or damage.

Reaction:

The ECU may limit or disable the starting aid function to prevent potential damage due to the excessive current.

Recommendations:

• Inspect for Short Circuits: Check the wiring and connectors for the glow plug relay 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 relay circuit and locate the short. 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.
• Verify Relay Operation: After repairs, test the relay to ensure it functions correctly and the short circuit issue is resolved.
• Reset ECU and Conduct System Tests: Reset the ECU to clear the error code and perform tests to confirm that the relay operates correctly and no further errors are detected.

Note:

Proper maintenance of the starting aid system wiring and connections is essential to avoid short circuits and ensure reliable engine start-up. Regular inspections and timely repairs can help maintain the integrity of the system.