Circuit Description

The electrically erasable programmable read only memory (EEPROM) is part of the printed circuit board housed within the instrument cluster. It stores variables required in the operation of the instrument cluster and in the interpretation of the incoming data and can be programmed for different instrument levels. If a DTC 24 was set as a result of interrupted instrument programming then the following diagnostic table will need to be followed. DTC 24 will set if the EEPROM checksum is incorrect. The testing of the EEPROM checksum occurs every time the ignition is turned on. The DTC is reset when the EEPROM checksum is tested as being correct. The DTC is logged as a History DTC.