u1154 lost communications with rear seat entertainment assembly
OBD2 Code: U1154
Description: Lost Communication With Rear Seat Entertainment Assembly
Definition: This code indicates that the vehicle’s control module has lost communication with the rear seat entertainment system. It suggests a possible issue with the wiring, connectors, or the entertainment unit itself, which may prevent it from functioning properly.
Severity: Medium
Common Causes
U1154 – Lost Communications with Rear Seat Entertainment Assembly
Common Causes:
- Faulty rear seat entertainment assembly
- Loose or corroded wiring connections to the rear seat entertainment assembly
- Interference from other electronic devices affecting communication
Common Misdiagnosis
Common Misdiagnosis: Faulty rear seat entertainment assembly when the issue is actually due to a wiring problem or a faulty communication bus.
Common Diagnostic Steps
- Check for any other related trouble codes that might indicate a broader communication issue.
- Inspect the wiring and connectors between the rear seat entertainment assembly and the vehicle’s main control module for signs of damage or corrosion.
- Verify that the rear seat entertainment assembly is receiving power by checking fuses and relays associated with it.
- Test the CAN bus network for proper voltage levels and continuity to ensure there are no breaks in communication lines.
- If possible, use a scan tool to attempt re-establishing communication with the rear seat entertainment system.
- Consult the vehicle’s service manual for specific diagnostic procedures related to this code.