U054D code meaning
Invalid Data Received From Seat Control Module H
What U054D means
Seat control module H is Ford's multi-contour module for the passenger seat (SCMH), the counterpart of SCMG. On 2022 Explorer and Aviator an intermittent passenger massage function without any stored code was traced to the configuration of both modules; first no fix was available, later reprogramming plus the configuration apps solved it (SSM 50591, 51927). The F-Super Duty case SSM 53226 shows where bad seat data is noticed: the APIM, which operates the seats from the SYNC screen, stored U024C. U054D is the code for an SCMH that still transmits but sends content failing validation, for instance after a wrong configuration or with fretting contacts at its plug. Passenger massage or lumbar adjustment then works only now and then.
U054D 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 U054D
- Passenger seat massage starts and stops on its own
- Passenger lumbar or contour adjustment does not respond
Common causes of U054D
- Most likelyPassenger seat module configuration not matching the vehicle
- PossibleFretting corrosion at the passenger seat module connector
- Less likelyPassenger multi-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 h
What each part of U054D means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 4D | The exact fault in that area. |
What to do next
- Note U054D 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 U054D
What does U054D mean?
U054D means "Invalid Data Received From Seat Control Module H". Seat control module H is Ford's multi-contour module for the passenger seat (SCMH), the counterpart of SCMG. It is a generic code, so it means the same on every make.
Is it safe to drive with U054D?
U054D does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U054D fail an emissions test?
U054D 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 U054D to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will U054D clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.