For 1990-2009 cars only
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 B101D 33: ECU Hardware Performance Special Memory FailureDTC 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
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 Testing
Verify that DTC B101D is not set.
| ⇒ | If the DTC is set, replace the radio. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for radio replacement, setup, and programming
