Description:

Error code ECU 000110.03 is triggered when the input voltage for the engine coolant temperature sensor exceeds the highest specified rating, typically indicating a short to a 12-volt power source. This malfunction can lead to erroneous high temperature readings, which may mislead the engine control system.

Reaction:

The ECU might react to these incorrect readings by activating cooling measures prematurely or unnecessarily, potentially affecting engine performance.

Recommendations:

• Inspect Wiring and Connections: Check for any signs of damage or shorts in the sensor wiring that could lead to high voltage readings.
• Measure Sensor Voltage: Utilize a multimeter to confirm the voltage at the coolant temperature sensor.
• Replace Faulty Wiring or Sensor: If a short to voltage is confirmed, repair or replace the affected wiring or sensor to restore accurate temperature readings.
• Reset ECU and Clear Fault Codes: After repairs, ensure the ECU is reset and all fault codes are cleared to enable accurate monitoring.

Note:

Maintaining electrical integrity is crucial for accurate sensor performance. Regular checks can prevent issues caused by electrical faults.