B1240
DTC B1240
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 B1240 00
- CD Mechanism Malfunction
Circuit/System Description
The radio monitors the CD mechanism for any errors or malfunctions during operation.
Conditions for Running the DTC
This test runs continuously.
Conditions for Setting the DTC
A malfunction is detected in the CD mechanism.
Action Taken When the DTC Sets
CD operation will be disabled.
Conditions for Clearing the DTC
The DTC will clear when a CD mechanism malfunction is no longer detected.
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 Verification
1. Ignition ON, with a scan tool clear all DTCs.
2. Radio ON, play a known good CD. Eject and reinsert the CD several times.
• If the DTC resets, 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, programming, and setup