[SOLVED] U0249 Code: Fixing Lost Communication With Rear Entertainment Control Module

The automobile fault code U0249 indicates a problem with the Entertainment Control Module Rear ‘B’. The most common symptom is the Engine Light ON or Service Engine Soon Warning Light.

The cause of this fault code could be a faulty Entertainment Control Module Rear ‘B’, an open or shorted harness, or a poor electrical connection in the circuit.

The importance of repairing this issue lies in the fact that it can affect the performance of the vehicle. The repair difficulty is moderate, and the repair time is estimated to be around 1.0 hour.

To fix the issue, one should visually inspect the related wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

If you notice the Engine Light ON (or Service Engine Soon Warning Light), it could be due to the u0249 fault code.

Here are the symptoms to look out for:

  • The U0249 fault code in an automobile can cause the following symptoms: – The engine light will turn on or the service engine soon warning light will appear.
  • – The vehicle may experience a decrease in fuel efficiency.
  • – The transmission may shift roughly or erratically.
  • – The vehicle may experience a loss of power or acceleration.
  • – The speedometer may not function properly.
  • – The vehicle may not start or may stall while driving.

The automobile fault code u0249 can be caused by a faulty module or poor electrical connection.

  • The automobile fault code U0249 can be caused by a faulty Entertainment Control Module Rear ‘B’.
  • It can also be caused by an open or shorted Entertainment Control Module Rear ‘B’ harness.
  • Additionally, a poor electrical connection in the Entertainment Control Module Rear ‘B’ circuit can also trigger this fault code.

To fix the u0249 fault code, check the possible causes and inspect the wiring harness and connectors for any damage or corrosion.

  • To fix the automobile fault code u0249, first, check the possible causes listed above.
  • Then, visually inspect the related wiring harness and connectors.
  • Look for any damaged components and check for broken, bent, pushed out, or corroded connector’s pins.
  • This fix will take an estimated repair time of 1.0 hour.

The automobile fault code U0249 can be diagnosed and fixed within an estimated repair time of 1.0 hour. The cost of repair is influenced by the repair time, which is commonly charged between $75 and $150 per hour by most auto repair shops.

Therefore, the total cost of diagnosis and fixing the U0249 fault code will depend on the hourly rate charged by the repair shop and the estimated repair time required to fix the issue.

The U0249 code is a Controller Area Network (CAN) fault code.

CAN is a vehicle bus standard designed to interconnect automotive devices without a host computer. The code sets when a periodic message from the Entertainment Control Module Rear ‘B’ has not been received.

The CAN bus uses two dedicated wires for communication, CAN high and CAN low. The Diagnostic Trouble Code (DTC) sets when there is a loss of communication with the Entertainment Control Module Rear ‘B’.

The CAN bus is not sensitive to inductive spikes, electrical fields, or other noise.

What are the possible causes of the u0249 automobile fault code?

If you see the engine light on or the service engine soon warning light, it could be due to the u0249 fault code. This code is caused by a faulty Entertainment Control Module Rear ‘B’, an open or shorted Entertainment Control Module Rear ‘B’ harness, or a poor electrical connection in the Entertainment Control Module Rear ‘B’ circuit. To fix this issue, you should visually inspect the related wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

How can one visually inspect the related wiring harness and connectors to fix the u0249 fault code?

If you’re experiencing the u0249 fault code, which is indicated by the engine light or service engine soon warning light being on, there are a few things you can do to fix it. First, check the possible causes listed above, which include a faulty Entertainment Control Module Rear ‘B’, an open or shorted harness, or a poor electrical connection in the circuit. To visually inspect the related wiring harness and connectors, look for damaged components and check for broken, bent, pushed out, or corroded connector’s pins.

What are the consequences of ignoring the u0249 fault code?

Ignoring the u0249 fault code can lead to serious consequences such as reduced fuel efficiency, engine misfires, and even engine failure. The fault code is caused by a faulty Entertainment Control Module Rear ‘B’, an open or shorted harness, or poor electrical connection. To fix the issue, it is important to visually inspect the related wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

u0249 error fault code explained

If your engine light is on and the code is u0249, it may be due to a faulty Entertainment Control Module Rear ‘B’, an open or shorted harness, or a poor electrical connection. To fix it, visually inspect the wiring harness and connectors for damage and check for broken or corroded pins.

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