What it means
A control module has stopped receiving expected messages from the front entertainment control module. The code identifies the communication loss; functions routed through that module may be affected.
At a glance
- Usually lights the warning light of the system that lost communication
How it works
The front entertainment control module routes or manages entertainment functions for the front of the vehicle and communicates with other modules over the network. U0245 sets when another module stops receiving its expected messages, which can interrupt front entertainment functions or related status information.
Common causes
Most likely first.
- Loss of power or ground to the module
- Open, shorted, or damaged network wiring or connector
- Failed module
Symptoms
- Front entertainment functions may be unavailable or limited
- A communication fault or warning may appear depending on the vehicle
How to diagnose it
- Scan all modules for communication codes and check event data for other modules that went offline at the same time.
- Check which front entertainment functions fail and whether the display shows a communication warning or loses module status.
- Inspect the front entertainment module's connectors and network wiring for looseness, corrosion, liquid intrusion, or damage.
- Check the module's power and ground circuits under the manufacturer's diagnostic procedure.
- Test the network circuit to the front entertainment module for opens, shorts, or poor connections using the wiring diagram.
- If power, ground, and network checks pass, follow the manufacturer's procedure to confirm whether the front entertainment module is faulty.
Common fixes
- Reconnect or clean a loose or corroded front entertainment module connector.
- Repair damaged network wiring or connector terminals at the front entertainment module.
- Repair a failed power or ground connection to the module.
- Replace the front entertainment control module if diagnostics confirm an internal failure.
Can I keep driving?
This fault usually affects convenience functions rather than basic vehicle control, so driving is generally possible. Keep attention on driving if the display or audio functions are unreliable, and do not interact with entertainment controls while moving.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.