B1265

DTC B1265

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 B1265 02
- Switched 14 Volt Performance Short to Ground




Circuit/System Description

When the navigation radio is on, a discrete 12-volt signal is supplied on the remote enable circuit to the Color Display Module and Color Display Actuator. This signal is used to control the power state of the module, which is now in the active state.


Conditions for Running the DTC

The following are conditions that must be present in order for the navigation radio to enable diagnostics:

* The ignition must be in the RUN or ACC position.
* The system voltage is at least 9.5 volts and no more than 15.5 volts.



Conditions for Setting the DTC

* The navigation radio detects a short to ground on the remote enable circuit.
* All the above conditions are present for greater than 250 mS.



Action Taken When the DTC Sets

The Color Display Module or Display Module Actuator is inoperative.


Conditions for Clearing the DTC

* The conditions for setting the DTC are no longer present on the remote enable circuit.
* A history DTC clears after 50 malfunction-free ignition cycles.



Diagnostic Aids

* This DTC may be stored as a history DTC without affecting the operation of the module.
* If stored only as a history DTC and not retrieved as a current DTC, do not replace the module.



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

If this DTC is retrieved as a current DTC, replace the module that set the DTC.