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 provides an overview of each diagnostic category. |
DTC Descriptor
DTC B1280: Rear Seat Entertainment (RSE) Input Signal CircuitCircuit Description
The DVD player monitors the video signal circuit from the DVD player to the video display screen. The DVD player outputs a video signal on this circuit when a video disc is playing in the DVD player. If the DVD has an internal video output failure or if the circuit becomes shorted to B+ or ground , DTC B1280 will set.
Conditions for Running the DTC
| • | The radio is in the ACCESSORY, RUN, or RAP power mode. |
| • | The system voltage is at least 9 volts and no more than 16 volts. |
| • | A DVD disc playing in the DVD player. |
| • | All the above conditions are present for greater than 50 ms. |
Conditions for Setting the DTC
Any of the following conditions are present for 2 seconds or longer:
| • | The DVD detects a short to ground in the video signal circuit. |
| • | The DVD detects a loss of video signal output. |
Action Taken When the DTC Sets
The DVD shuts down the video signal output.
Conditions for Clearing the DTC
| • | A current DTC clears when the malfunction is no longer present. |
| • | A history DTC clears when the module ignition cycle counter reaches the reset threshold, without a repeat of the malfunction. |
| • | The DVD player receives a clear code command from the scan tool. |
Diagnostic Aids
This DTC will not set in the DVD player if the auxiliary inputs are selected as the source for the video screen and there is a video display problem. Go to Video Display is Poor or Blank .
Reference Information
Schematic Reference
Radio/Navigation System Schematics
Connector End View Reference
Entertainment/Communication Connector End Views
Electrical Information Reference
Circuit/System Testing
- Ignition ON, scan tool installed, retrieve the DTCs. Is DTC B1280 current?
- If there is no short to ground in the video signal circuit, replace the DVD Player.
| ⇒ | Test the video signal circuit for a short to ground. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for replacement, setup and programming
