What it means
A control module received invalid data from seat control module B. The code identifies a data validity fault; the specific affected function depends on the vehicle.
How it works
Seat control module B sends seat position and other supported seat-function data to vehicle modules over the network. This code sets when a receiving module rejects data from module B as invalid; the affected seat and functions depend on the vehicle's module layout.
Common causes
Most likely first.
- Fault in the transmitting module
- Network wiring or connector fault
- Module power or ground fault
- Software or configuration mismatch
Symptoms
- One or more functions controlled by the affected seat module may not work correctly
- Related communication codes or system warnings may appear
How to diagnose it
- Scan all modules and capture freeze-frame information to identify the reporting module and any related seat or network codes.
- Check which functions assigned to seat control module B are affected and confirm that the associated seat is locked in a safe driving position.
- Inspect module B's connectors and accessible wiring near the associated seat for corrosion, damage, looseness, or interference from seat movement.
- Test the module's power and ground under the manufacturer's specified conditions to rule out supply faults that can disrupt its data.
- Compare live seat position and status values with actual operation, then check network communication and module configuration using vehicle-specific service information.
Common fixes
- Secure or clean a loose or corroded connector at seat control module B.
- Repair damaged wiring or a poor power or ground connection to module B.
- Apply the correct configuration or software if the fault followed module replacement or programming.
- Replace seat control module B if its wiring, supply, and configuration are sound but its data remains invalid.
Can I keep driving?
Driving is generally possible if the seat is secure and remains in a safe position. Do not drive if it shifts unexpectedly or cannot be locked, and avoid relying on any unavailable seat functions.
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.