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 mechnaism.


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/Audio System Schematics (Radio/Audio 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

Ignition ON, verify DTC B1240 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, programming, and setup