Lost Communication With Rear Seat Entertainment Module
The U0251 code means the vehicle's onboard diagnostic system has detected: Lost Communication With Rear Seat Entertainment Module. This is a low severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- moderate
- Estimated cost
- $300 - $1,200 (parts and labor)
Network codes mean modules are not communicating. You need a scanner that reads all systems to find the problem.
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Common Symptoms
- Rear seat screens not powering on
- No audio to rear headphones
- Rear entertainment remote not working
- HDMI input to rear screens not detected
Probable Causes (Ranked by Likelihood)
- Failed rear entertainment module Very High
- Loose wiring to rear displays High
- CAN bus communication fault Moderate
- Blown entertainment system fuse Low
Step-by-Step Diagnostic Procedure
-
Check rear entertainment fuse
-
Inspect wiring to rear seat displays
-
Scan entertainment module for codes
-
Test displays with direct power supply
Frequently Asked Questions
Can I drive with U0251?
Yes. Only rear passenger entertainment is affected.
What causes U0251?
Usually a failed rear entertainment module or loose display wiring.
How much does U0251 cost to fix?
Typically $300 to $1,200 for rear entertainment system repairs.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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