U0247: Lost Communication With Seat Control Module F

What it means

A control module has stopped receiving expected messages from seat control module F. The code identifies the communication loss; seat functions controlled by that module may be affected.

At a glance

• Usually lights the warning light of the system that lost communication

How it works

Seat control module F manages the seat functions assigned to module F and communicates their commands and status to other vehicle modules. U0247 sets when another module stops receiving expected messages from F, potentially disabling the seat functions handled by that specific module.

Common causes

Most likely first.

1. Loss of power or ground to the module
2. Open, shorted, or damaged network wiring or connector
3. Failed module

Symptoms

• Seat functions controlled by the module may be unavailable or limited
• A warning may appear depending on the vehicle

How to diagnose it

1. Scan all modules for communication codes and check event data for related network faults affecting seat control module F.
2. Determine which seat functions assigned to module F have stopped working and note any associated warning.
3. Inspect module F's connector and wiring under or beside the seat for damage, corrosion, loose terminals, or harness pinching as the seat moves.
4. Check module F's power and ground circuits using the manufacturer's procedure.
5. Test the network wiring to module F for opens, shorts, or poor connections, following the wiring diagram.
6. If its power, ground, and network circuits pass, follow manufacturer diagnostics to verify whether seat control module F has failed.

Common fixes

• Reconnect or clean a loose or corroded module F connector.
• Repair damaged or pinched wiring serving seat control module F and route it clear of the seat track.
• Repair the module's power or ground supply fault.
• Replace seat control module F if testing confirms an internal failure.

Can I keep driving?

You can generally drive if the seat is locked securely and the driver's position is safe. Do not drive if the seat shifts unexpectedly or cannot be secured.