PTH 000628.12 – Program Memory Bad Intelligent Device or Component

PTH 000628.12 (PTH 628.12)

Code: 000628.12

Shortcode: 628.12


This fault code indicates that the PTH software has either failed or does not exist on the PTH control unit. This can result from a faulty intelligent device or component within the control unit.


When this error is detected, the equipment may be unable to operate correctly due to missing or failed software, potentially leading to complete system shutdown or failure to start.


CAN System Diagnosis:

  • Conduct a thorough diagnosis of the CAN system.
  • Check for any communication errors, faulty nodes, or wiring issues.
  • Repair or replace any faulty components.

Programming Control Units:

  • Reprogram the PTH control unit with the correct software.
  • Ensure that the software is installed correctly and is the latest version.

Check Control Unit Hardware:

  • Inspect the control unit for any hardware faults.
  • Replace the control unit if it is found to be defective.

Consult Technical Support:

  • If the issue persists, contact technical support for further diagnostics and potential replacement of the control unit.

Monitor System Performance:

  • After addressing the issue, monitor the system to ensure normal operation and that the fault does not reappear.


Regular software updates and maintenance checks can prevent such issues. Ensuring the integrity of control unit hardware and software during installation is crucial for reliable operation.

Control Units: John Deere

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