Description:

This fault code indicates that the hand throttle sensor is out of calibration, which can lead to inaccurate throttle control and engine performance issues.

Reaction:

When this error is detected, the equipment may experience throttle control problems, leading to poor engine performance or unstable speed regulation. The system might enter a safe mode to prevent damage.

Recommendations:

System Calibration (Power Train Hydrostatic Control Unit – PTH):

• Perform a system calibration for the PTH control unit to ensure accurate sensor readings.
• Follow the manufacturer’s guidelines for calibration procedures.

Inspect Hand Throttle (P03) Without ECU:

• Check the hand throttle for proper operation.
• Ensure the throttle is not damaged and is correctly positioned.

Test Power Train Hydrostatic Control Unit (PTH):

• Perform diagnostic tests on the control unit to identify any faults.
• Verify all electrical connections to the control unit are secure and corrosion-free.

Update Control Software:

• Ensure the control unit software is up-to-date with the latest calibration data and improvements.

Consult Technical Support:

• If the fault persists, contact technical support for further diagnostics and possible sensor replacement.

Monitor System Performance:

• After addressing the issue, closely monitor the throttle system to ensure normal operation and that the fault does not reappear.

Note:

Regular calibration of the throttle sensor and maintenance of the associated wiring can help prevent this fault. Environmental conditions such as extreme temperatures or exposure to moisture can also impact sensor calibration, so these factors should be considered during troubleshooting.