This diagnostic trouble code, PTQ 521925.31, indicates that the operator’s seat is not occupied for at least 3 seconds while a range is selected. The system requires the operator to be seated to ensure safe operation.

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This diagnostic trouble code, PTQ 004309.14, indicates that when a range change is initiated, the vehicle unexpectedly changes direction. This issue may occur when driving on a slope, potentially due to unintended movement or control unit responses.

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This diagnostic trouble code, PTQ 002833.31, indicates that the vehicle continues to move at a speed over 1.75 km/h even though the park lock is engaged. This situation can be dangerous and requires immediate attention.

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This diagnostic trouble code, PTQ 002824.02, is generated when the switch position of the not-neutral switch and the position of the reverse drive lever are not logical. This could indicate an operator error or a malfunction in the switch or drive lever mechanism.

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This diagnostic trouble code, PTQ 002145.09, is generated when a data transfer problem occurs between the FCC control software and the PTQ control software. This could involve intermittent or nonexistent reception of CAN messages, which may be caused by a loose wire or other connection issues.

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