Description:

The error code ECU 000103.05 is triggered when there is abnormally low current in the turbocharger speed sensor’s wiring, suggesting high circuit resistance or an open circuit. This condition can result from damaged wires, poor connections, or a fault within the sensor itself, affecting the sensor’s ability to accurately relay turbocharger speed data.

Reaction:

The ECU may not receive reliable data, which can affect the control and performance of the turbocharger, possibly leading to decreased engine efficiency or increased emissions.

Recommendations:

• Inspect Wiring and Connections: Check for breaks, damage, or corrosion in the sensor wiring. Repair or replace wiring as necessary.
• Test Sensor and Circuit: Use a multimeter to measure resistance and current in the circuit. Abnormal readings may indicate where the issue lies.
• Replace Sensor if Required: If testing confirms sensor or circuit issues, replace the turbocharger speed sensor.
• Clear Codes and Reset ECU: After repairs, clear any error codes and reset the ECU to ensure all system parameters are restored to normal.

Note:

Regular inspections can prevent issues due to environmental factors like vibration, heat, and moisture, which can deteriorate wiring and connections over time.