Description:

This diagnostic trouble code (DTC) is generated when the control software measures a voltage of more than 4.5 V at the signal input from channel 1 of the hand throttle potentiometer. This high voltage reading indicates a potential problem with the signal lead or the ground connection of the potentiometer.

Reaction:

Limited or no function of the hand throttle potentiometer, affecting throttle control.

Recommendations:

Inspect Signal Lead and Ground Connection:

• Verify the integrity and connection of the signal lead and ground connection.
• Repair or replace any damaged or corroded wiring and connectors.

Measure Voltage at Signal Input:

• Use a multimeter to measure the voltage at channel 1 of the hand throttle potentiometer.
• Ensure the voltage is within the expected range (typically 0.5 to 4.5 V). If it exceeds 4.5 V, further investigation is required.

Check Potentiometer:

• Inspect the hand throttle potentiometer for any signs of wear or damage.
• Replace the potentiometer if it is malfunctioning.

Update Control Software:

• Ensure that the control software is up-to-date with the latest version from the manufacturer.

Consult Technical Support:

• If the issue persists, consult technical support for further diagnostic procedures or potential hardware issues.

Note:

Regular inspection and maintenance of the hand throttle potentiometer and its wiring can prevent high voltage issues. Environmental factors such as moisture or extreme temperatures can also affect electrical connections.