Description:

This error code, ECU 001172.04, is set when the ECU detects that the input voltage from the turbocharger compressor inlet temperature sensor drops below the specified low voltage limit. This condition suggests a potential short to ground or a malfunctioning sensor.

Reaction:

This error code, ECU 001172.04, is set when the ECU detects that the input voltage from the turbocharger compressor inlet temperature sensor drops below the specified low voltage limit. This condition suggests a potential short to ground or a malfunctioning sensor.

Recommendations:

• Inspect Sensor and Wiring: Check the turbocharger compressor inlet temperature sensor and its wiring for signs of damage, corrosion, or loose connections that could cause low voltage readings.
• Measure Sensor Voltage: Use a multimeter to measure the voltage at the sensor terminals and compare it to the expected range. Low readings indicate an issue.
• Check for Short Circuits: Inspect the wiring for any signs of shorts to ground. Pay close attention to the sensor’s harness and connectors.
• Replace Faulty Sensor: If the sensor is found to be defective, replace it with a new one to ensure accurate temperature readings.
• 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 sensor operates correctly and no further errors are detected.

Note:

Accurate temperature readings are crucial for optimal turbocharger and engine performance. Regular inspection and timely maintenance of sensors and wiring can help prevent voltage-related issues.