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 B1243 00: CD-Player Load or Unload PerformanceDTC B1248 00: CD Changer Load/Unload mechanism Performance
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
The CD player/changer recovers from loading/ejecting error.
Conditions for Setting the DTC
The CD player/changer experiences a loading/ejecting error.
Action Taken When the DTC Sets
The radio displays a "Mechanism Error" message temporarily.
Conditions for Clearing the DTC
| • | The condition for setting the DTC is no longer present. |
| • | The history DTC will clear after 50 fault-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
| • | Circuit Testing |
| • | Wiring Repairs |
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
- Ignition ON, with a scan tool clear all DTCs.
- Radio ON, play a known good CD. Eject and reinsert the CD several times and verify the DTC does not reset.
| ⇒ | If B1243 or B1248 resets, replace the radio. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for radio replacement, setup, and programming
