Description:

This diagnostic trouble code (DTC) is generated when there is a mismatch between the signals of speed band 1 and the potentiometer on the speed control lever. The signal for speed band 1 is received even though the speed control lever is set to speed band 2.

Reaction:

Limited or no function of the speed control lever in speed band 1.

Recommendations:

Inspect Speed Control Lever:

• Verify the physical condition and operation of the speed control lever.
• Replace the speed control lever if it is faulty or damaged.

Check Potentiometer:

• Inspect the potentiometer for the speed control lever for proper function.
• Ensure the potentiometer is correctly calibrated and replace if necessary.

Inspect Wiring and Connections:

• Check the wiring and connectors between the speed control lever, potentiometer, and control unit for damage, corrosion, or loose connections.
• Repair or replace any damaged or faulty wiring and connectors.

Verify Signal Integrity:

• Use diagnostic tools to monitor the signals from the speed control lever and ensure they match the expected values for the selected speed band.

Update Control Software:

• Ensure the control software is up-to-date with the latest version provided by the manufacturer.

Consult Technical Support:

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

Note:

Regular inspection and maintenance of the speed control lever and associated sensors can prevent issues related to signal mismatches. Ensuring the system is properly calibrated is crucial for reliable operation.