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 00
- Info Display Module Malfunction

Circuit/System Description

The radio communicates with the information display via serial data. This DTC indicates a fault in the information display. No external circuits are involved. The radio and display may continue to operate normally when this DTC is set.

Conditions for Running the DTC

* Ignition is ON or in the ACC position.
* The system voltage is at least 9.5 V and no more than 15.5 V.
* All the above conditions are present for greater than 10 seconds.

Conditions for Setting the DTC

The radio receives an improper status response indicating an internal ECU fault in the information display.

Action Taken when the DTC Sets

No action is taken.

Conditions for Clearing the DTC

* A current DTC clears when the radio receives a proper status response message back from the information display.
* A history DTC clears after 50 malfunction-free ignition cycles.

Diagnostic Aids

* This DTC may be stored as a history DTC without affecting the operation of the information display.
* If stored only as a history DTC and not retrieved as a current DTC, do not replace the information display.
* If this DTC is retrieved as both a current and history DTC, replace the information display.

Reference Information
Schematic Reference

Radio/Navigation System Schematics (Radio/Navigation System Schematics)
Connector End View Reference

Component Connector End Views (Connector End Views By Name)
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 (Programming and Relearning)for scan tool information

Circuit/System Verification

If this DTC is retrieved as a current DTC, replace the information display.

Repair Instructions

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

Driver Information Display Replacement (UAG) (Driver Information Display Replacement (UAG))Driver Information Display Replacement (UDN) (Driver Information Display Replacement (UDN))