Diagnostic Instructions
| • | 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. |
DTC Descriptor
DTC B0997 3A: Auxiliary Electronic Control Unit (ECU) 2 Performance Incorrect ComponentDTC B0997 33: Auxiliary Electronic Control Unit (ECU) 2 Performance Special Memory Failure
DTC B0997 36: Auxiliary Electronic Control Unit (ECU) 2 Performance, EEPROM Failure
DTC B0997 42: Auxiliary Electronic Control Unit (ECU) 2 Performance Calibration Data Set Not Programmed
DTC B0997 45: Auxiliary Electronic Control Unit (ECU) 2 Performance Variant Not Programmed
Circuit/System Description
The EEPROM (Electrically Erasable Programmable Read Only Memory) is part of the printed circuit board housed within the radio display. It stores variables required for the operation of the entertainment system.
Conditions for Running DTC
The radio display runs the program to detect an internal fault or compatibility concern when the radio changes from OFF to ON.
Conditions for Setting the DTC
| • | The radio display internal EEPROM has failed or is corrupt. |
| • | An incompatible radio display is installed to the radio. |
| • | The radio display that is installed is compatible but a different type of radio display from the current learned type. |
Action Taken When DTC Sets
The system will set the DTC and not function.
Conditions for Clearing the DTC
The condition for setting the DTC is no longer present.
Diagnostic Aids
This DTC may be an indication that the radio display was installed in the vehicle, or that the radio display was replaced without reprogramming with the new information.
Reference Information
Schematic Reference
Radio/Navigation System Schematics
Connector End View Reference
Description and Operation
Radio/Audio System Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
- Verify that DTC B0997 is not set.
| ⇒ | If the DTC is set, reprogram the radio. If the DTC resets, replace the radio display. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for radio display replacement, and for radio setup, and programming
