Service Information

Orlando

DTC B1265

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 provide an overview of each diagnostic category.

DTC Descriptors

DTC B1265 04: Switched 14V Open

DTC B1265 0B: Switched 14V High Current

When the navigation radio is on, a discreet 12 V signal is supplied on the Entertainment Remote Enable Signal circuit to the display module, display module actuator, and aerial module. This signal is used to control the power state of the modules.

Conditions for Running the DTC

•	The ignition is in RUN or ACCESSORY position.

•	The system voltage is between 9–16 V

Conditions for Setting the DTC

B1265 04

•	The navigation radio detects an open circuit on the Entertainment Remote Enable Signal circuit.

•	All the above conditions are present for greater than 0.25 s.

B1265 0B

•	The navigation radio detects high current on the Entertainment Remote Enable Signal circuit.

•	All the above conditions are present for greater than 0.25 s.

Action Taken When the DTC Sets

The display module, display module actuator, and aerial module may become inoperative.

Conditions for Clearing the DTC

•	The condition for setting the DTC no longer exists.

•	A history DTC clears after 50 ignition cycles.

Reference Information

Electrical Information Reference

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Testing

Note: The ignition circuit controls multiple modules/components. Each of the modules will need to be disconnected if the ignition circuit test fails for a short to voltage or short to ground. Disconnect one module/component at a time while testing the ignition circuit for a short to voltage or short to ground. If the fault is no longer present when disconnecting a module/component replace that module/component. If the fault is still present with all the module/component disconnected repair the circuit.

Ignition OFF, disconnect one of the connectors listed below at an inoperative module/component:

•	T4P Navigation Aerial

•	A22 Radio Controls X1

•	A22 Radio Controls X2

Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal listed below and ground.

•	T4P Navigation Aerial terminal 1

•	A22 Radio Controls X1 terminal 4

•	A22 Radio Controls X2 terminal 3

⇒	If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. If the circuit tests normal replace the A11 Radio.

If all circuits test normal, replace the module/component that was disconnected in step 1.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for radio replacement, setup, and programming.