B0997

DTC B0997

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.

* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptor

DTC B0997 3A

-
Auxiliary Electronic Control Unit (ECU) 2 Performance Incorrect Component

Circuit/System Description

The EEPROM (Electrically Erasable Programmable Read Only Memory) is part of the printed circuit board housed within the radio/HVAC control assembly. It stores the variables required for the operation of the entertainment system.

Conditions for Running DTC

* Ignition is ON or in the ACC position

* The system voltage is 9-16 V

* The test is run once during radio wake up

Conditions for Setting the DTC

* The radio display internal EEPROM has failed or is corrupt.

* An incompatible radio/HVAC control assembly is installed to the radio.

Action Taken When DTC Sets

The radio will set the DTC and the infotainment system will not function.

Conditions for Clearing the DTC

The radio detects that a compatible radio/HVAC control assembly is installed to the radio.

Reference Information

Schematic Reference

Radio/Navigation System Schematics Radio/Navigation System Schematics

Connector End View Reference

Component Connector End Views Fuel Pump and Level Sensor Assembly

Description and Operation

Radio/Audio System Description and Operation Radio/Audio System

Electrical Information Reference

* Circuit Testing Circuit Testing

* Connector Repairs Connector Repairs

* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections

* Wiring Repairs Wiring Repairs

Scan Tool Reference

Control Module References Control Module References for scan tool information

Circuit/System Verification

If this DTC is retrieved as a current DTC, replace the radio/HVAC control assembly.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.

Radio Control Assembly Replacement Radio Control Assembly Replacement