U0214 code meaning
Lost Communication With Remote Function Actuation Module
What U0214 means
U0214 stands for the remote function actuation module, the receiver for key fob, passive entry or phone as a key. Ford calls it RFA: SSM 51571 (Mustang Mach-E 2021–2023) and SSM 54773 (Nautilus 2021–2023) describe phone as a key failing and U0214 in several modules because the RFA hangs in programming mode following an over-the-air update; one minute without the RFA fuse in the BCM and a reprogramming bring it back. GM bulletin 15-NA-004 (Acadia 2013–2016) lists U0214 with many other codes when the slow LAN line feeding the remote door lock receiver gets squeezed by the rear HVAC duct in the headliner, giving intermittent no-crank. Ford's 2014 list marks no MIL.
U0214 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.2 to 2 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U0214
- Key fob, keyless entry or phone as a key inoperative
- Intermittent no crank or radio and HVAC dropouts
Common causes of U0214
- Most likelyRFA module stuck in programming mode after an update (Ford)
- PossibleLAN wire to the receiver pinched in the headliner (GM Acadia)
- PossibleFuse or supply of the receiver module
- Less likelyReceiver module faulty
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Rke receiverCAN bus wiring
What each part of U0214 means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 14 | The exact fault in that area. |
What to do next
- Note U0214 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 U0214
What does U0214 mean?
U0214 means "Lost Communication With Remote Function Actuation Module". U0214 stands for the remote function actuation module, the receiver for key fob, passive entry or phone as a key. It is a generic code, so it means the same on every make.
Is it safe to drive with U0214?
U0214 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U0214 fail an emissions test?
U0214 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 U0214 to fix?
Difficulty: medium. A typical repair takes 0.2 to 2 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will U0214 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.