PTR 524160.02 – Not Valid Neutral/Not Neutral Switch

PTR 524160.02 (PTR )

Code: 524160.02



This error code, PTR 524160.02, indicates that the Power Train Reverser (PTR) control unit has detected a conflict between the neutral signal and the not neutral signal. This can occur due to faulty switches, wiring issues, or problems within the control circuitry.


When this error is detected, the PTR control unit may disable certain functionalities to ensure safe operation. The system may display a warning message to alert the operator.


Inspect Neutral and Not Neutral Switches:

  • Check the neutral and not neutral switches for proper operation.
  • Ensure the switches are not physically stuck or damaged. Replace if necessary.

Check Wiring and Connections:

  • Inspect the wiring and connectors related to the neutral and not neutral switches.
  • Ensure all connections are secure and free from corrosion, damage, or short circuits.

Test Switch Circuitry:

  • Use a multimeter to test the switch circuitry for proper functionality.
  • Ensure there are no short circuits or open circuits causing the conflict.

Examine Control Unit:

  • Verify that the PTR control unit is functioning correctly.
  • Check for any diagnostic trouble codes in the control unit that might relate to the neutral/not neutral signal conflict.

Update Software:

  • Ensure that the PTR control unit software is up-to-date.
  • Apply any available software updates or patches from the manufacturer.

Monitor Signal Operation:

  • After addressing the issue, monitor the neutral and not neutral signal operation during use.
  • Ensure that the signals are accurate and do not conflict with each other.


Proper detection and differentiation of neutral and not neutral signals are essential for safe vehicle operation. Regular inspection and maintenance of the switches and related components can help prevent such issues.

Control Units: John Deere

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