Test Function No. 14 - Read Self Diagnostic Error Bytes

• This function is locked and needs to be unlocked via the procedure in Function Test No. 19. Errors are stored in the EEPROM in the form of bytes and are displayed in hexadecimal form. The maximum five errors can be scrolled through using the trip reset button and are displayed as follows:
  • 'DIAG: 1 90 84 040' - the first number shows the error location number 1 - 5. The following numbers show error source code, type of error and frequency of error occurrence.

T4 must be used to interrogate the EEPROM and convert the hexadecimal values into meaningful error descriptions.