• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides an overview of each diagnostic category |
The EEPROM (Electrically Erasable Programmable Read Only Memory) is part of the printed circuit board housed within the DVD screen. It stores variables required for the operation of the rear seat entertainment system.
The DVD screen runs the program to detect an internal fault or compatibility concern when power up is commanded. The only requirements are voltage and ground. This program runs even if the voltage is out of the valid operating range.
DTCs B0998 and B0999 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.
DTC B0999 is only applicable to level 5 vehicles with DVD screens mounted within the rear seats and applies to the second of the two screens.
The system will set the DTC and disable itself.
• | The condition for setting the DTC is no longer present. |
• | The history DTC will clear after 50 fault-free ignition cycles. |
Radio/Navigation System Schematics
Radio/Audio System Description and Operation
Control Module References for scan tool information
⇒ | If either DTC B0998 or B0999 is set to current, replace the appropriate DVD screen. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.