Cellular, Entertainment, and Navigation

DTC B101D

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.

DTC Descriptor
DTC B101D 33
- ECU Hardware Performance Special Memory Failure

DTC B101D 34
- ECU Hardware Performance RAM Failure

DTC B101D 36
- ECU Hardware Performance EEPROM Failure

Circuit/System Description

When the ignition is turned ON, the radio performs a self test to verify if any critical malfunction exists within the system.

Conditions for Running the DTC

This DTC runs continuously

Conditions for Setting the DTC

The module has detected an internal electrical malfunction.

Action Taken When the DTC Sets

Radio functions are disabled

Conditions for Clearing the DTC

* A current DTC clears when the conditions for setting the DTC are no longer present.
* A history DTC clears after 50 malfunction-free ignition cycles.

Reference Information
Schematic Reference

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

Component Connector End Views (Connector Views)
Description and Operation

Radio/Audio System Description and Operation (Radio/Audio System Description and Operation)
Electrical Information Reference

* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)

Scan Tool Reference

Control Module References (Programming and Relearning) for scan tool information

Circuit/System Testing

Verify that DTC B101D is not set.

If the DTC is set, replace the radio.

Repair Instructions

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

Control Module References (Programming and Relearning) for radio replacement, setup, and programming