What it means
A receiving control module has detected invalid data from Seat Control Switch Module B. The code does not specify which data is invalid or why.
How it works
Seat Control Switch Module B reports seat-switch status or commands to other modules over the vehicle network. U0562 means a receiving module considers data from this B-designated switch module invalid; it does not specify which seat control is affected.
Common causes
Most likely first.
- Module internal fault or sensor input drift
- Software version mismatch after replacement
- Gateway module routing CAN messages incorrectly
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
How to diagnose it
- Scan all modules and retain freeze-frame and communication details to identify the module reporting invalid data from Seat Control Switch Module B.
- Check for faults in the seat controls associated with Module B and determine whether U0562 is current or intermittent.
- Inspect Module B's connectors and seat harness for looseness, corrosion, pinched insulation, or damaged terminals.
- Verify the module's power, ground, and network circuits against vehicle wiring information and the manufacturer's specification.
- Check for recent seat or module replacement and verify gateway routing, configuration, and software compatibility.
- If those checks pass, test the switch inputs and Module B using vehicle-specific diagnostic procedures.
Common fixes
- Secure or repair a loose or damaged Module B connector.
- Repair pinched seat wiring or a poor power or ground connection.
- Replace a switch only if testing shows its input is faulty.
- Correct module configuration or software mismatch.
- Repair or replace Seat Control Switch Module B if testing confirms internal failure.
Can I keep driving?
U0562 generally affects seat-control functions, but an unusable adjustment can compromise the driver's position and visibility. Adjust and secure the seat before setting off, and do not try to reposition it while driving.
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.