Description:

This diagnostic trouble code (DTC) is generated when the control software detects a mismatch between the output signals of the hand throttle potentiometer. The voltage at channel 1 must be double the voltage at channel 2. A discrepancy in this ratio indicates a problem with the potentiometer or its associated wiring.

Reaction:

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

Recommendations:

Inspect Hand Throttle Potentiometer:

• Verify the physical condition and operation of the hand throttle potentiometer.
• Replace the potentiometer if it is faulty or damaged.

Check Wiring and Connections:

• Inspect the wiring and connectors between the hand throttle potentiometer and the control unit for damage, corrosion, or loose connections.
• Repair or replace any faulty wiring or connectors.

Measure Voltage Outputs:

• Use a multimeter to measure the voltages at channel 1 and channel 2 of the hand throttle potentiometer.
• Ensure that the voltage at channel 1 is exactly double the voltage at channel 2. If not, replace the potentiometer.

Update Control Software:

• Ensure the control software is up-to-date to handle the correct potentiometer signals and ratios.

Consult Technical Support:

• If the issue persists after performing the above checks, consult technical support for further diagnostic procedures or potential software issues.

Note:

Regular maintenance and inspection of the hand throttle potentiometer and its wiring can prevent issues related to voltage mismatches. Ensuring the system is properly calibrated is crucial for reliable throttle control.