DTC B1265
Diagnostic Instructions
DTC Descriptors
| DTC B1265 04: Switched 14 V Open |
| DTC B1265 0B: Switched 14 V High Current |
Circuit/System Description
When the navigation radio is on, a discrete 12 V signal is
supplied on the Entertainment Remote Enable Signal circuit to the
display module, display module actuator, and antenna 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 antenna 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
Schematic Reference
Radio/Navigation System Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Radio/Audio System Description and Operation
Electrical Information Reference
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.
| 1. |
Ignition OFF, disconnect one
of the connectors listed below at an inoperative
module/component: |
| 2. |
Ignition ON, verify that a
test lamp illuminates between the ignition circuit terminal listed
below and ground: |
| |
• |
T4P Navigation Antenna
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. |
| 3. |
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.
|
