U054C code meaning
Invalid Data Received From Seat Control Module G
What U054C means
Ford gives seat control module G a fixed meaning: SCMG is the driver's multi-contour seat module with massage and lumbar functions. Ford's TSB 19-2293 covers vehicles from the 2013 MKZ to the 2019 F-150 and Navigator with intermittent massage and lumbar operation, B1471 and U024B/U024C, caused by fretting terminals at the SCMG and SCMH connectors and fixed with new pigtails and a rerouted harness. On 2020–2021 F-Super Duty a misconfigured SCMG after a software update made the APIM store U024B, cured by the configuration app (SSM 53226). U054C stands for data that arrive but are rejected; Ford documents no case for it. Massage, lumbar or contour settings of the driver seat may then stop or be unavailable from the touchscreen.
U054C at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U054C
- Driver seat massage or lumbar adjustment works only intermittently
- Seat contour settings cannot be operated from the touchscreen
Common causes of U054C
- Most likelyFretting corrosion at the multi-contour seat module connector
- PossibleSeat module misconfigured after a software update
- Less likelyMulti-contour seat module internally faulty
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Seat control module g
What each part of U054C means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 4C | The exact fault in that area. |
What to do next
- Note U054C and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about U054C
What does U054C mean?
U054C means "Invalid Data Received From Seat Control Module G". Ford gives seat control module G a fixed meaning: SCMG is the driver's multi-contour seat module with massage and lumbar functions. It is a generic code, so it means the same on every make.
Is it safe to drive with U054C?
U054C does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U054C fail an emissions test?
U054C is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is U054C to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will U054C clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.