Description:

This diagnostic trouble code (TCU 524233.03) is generated if the control unit detects that the voltage at the signal input from channel 1 of the hydrostatic speed sensor (B62, lead 6089) is too high. This indicates that the sensor’s circuit is open or shorted to a positive lead. If diagnostic trouble code TCU 523917.03 is also stored, a problem with the sensor supply voltage is indicated. The diagnostic trouble code must be processed first.

Reaction:

When this error code is detected, the equipment may experience issues with accurate hydrostatic speed readings, leading to potential performance problems. The system might display warnings or enter a protective mode to prevent further issues.

Recommendations:

1. Address Related DTCs:

• Process TCU 523917.03 First: Resolve any issues related to the sensor supply voltage before addressing this code.

2. Inspect Sensor Circuit:

• Check for Shorts to Positive Lead: Inspect the wiring for any signs of shorting to a positive lead.
• Ensure Secure Connections: Make sure all connections are secure and free of corrosion.

3. Test the Sensor:

• Measure Voltage: Use a multimeter to measure the voltage at the signal input of channel 1 of the hydrostatic speed sensor.
• Replace if Faulty: Replace the sensor if it is providing high voltage readings.

4. Examine Wiring and Connectors:

• Inspect for Damage: Check the wiring and connectors associated with the sensor for damage or disconnection.
• Repair or Replace: Repair or replace any damaged components.

5. Verify Control Unit Functionality:

• Test Control Unit: Ensure that the control unit is correctly processing the sensor signals.
• Update Software: Update the control unit software if necessary.

Note:

Maintaining the sensor and its associated circuitry is crucial for accurate hydrostatic speed readings. Regular inspections and prompt repairs can help prevent issues related to high voltage readings.