TIA 523953.02 – Potentiometer for Speed Control Lever, Voltages at Channel 1 and Channel 2 Not in the Correct Ratio

TIA 523953.02 (TIA )

Code: 523953.02

Shortcode:

Description:

This diagnostic trouble code (DTC) is generated when the control software detects a mismatch between the output signals of the potentiometer on the speed control lever. Specifically, the voltage at channel 1 must be exactly double the voltage at channel 2. When this condition is detected, it indicates that the voltages are not in the correct ratio, leading to a fault code.

Reaction:

Limited or no function of the transmission.

Recommendations:

Inspect Speed Control Lever Potentiometer:

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

Check Wiring and Connections:

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

Measure Voltage Outputs:

  • Use a multimeter to measure the voltages at channel 1 and channel 2 of the 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 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 potentiometer and its wiring can prevent issues related to voltage mismatches. Ensuring the system is properly calibrated is crucial for reliable transmission operation.


Control Units: John Deere