CSM 523343.03 — Single Lever Control Trigger Sensor Circuit Voltage High

CSM 523343.03 (CSM )

Code: 523343.03



This error code, CSM 523343.03, indicates that the sensor voltage in the single lever control trigger circuit is too high. This can be due to a fault in the sensor, wiring issues, or a malfunctioning power supply.


The function of the single lever control is disabled to prevent incorrect operations due to erroneous sensor readings.


Inspect Sensor:

  • Examine the single lever control trigger sensor for any faults. Replace the sensor if it is found to be defective.

Check Wiring and Connections:

  • Inspect the wiring and connections in the sensor circuit for signs of damage, loose connections, or corrosion. Secure and clean all connections as needed.

Measure Circuit Voltage:

  • Use a multimeter to measure the voltage in the sensor circuit. Ensure that it is within the specified range. Identify and correct any sources of excessive voltage.

Evaluate Power Supply:

  • Check the power supply to the sensor circuit for proper operation. Replace or repair the power supply if it is causing high voltage.

Reset and Test System:

  • After resolving the issue, reset the system and perform tests to ensure the sensor voltage is within the acceptable range and the single lever control function is restored.


Maintaining the correct sensor circuit voltage is essential for accurate sensor operation. Regular checks and maintenance of the sensor, wiring, and power supply can prevent high voltage issues.

Control Units: John Deere

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