U0414 code meaning
Invalid Data Received From Four-Wheel Drive Clutch Control Module
Network system Generic code U04xx codes Check engine light
What U0414 means
U0414 is set when a listener, usually the engine controller, receives frames from the four-wheel-drive clutch control module but cannot trust what they carry. That module regulates an on-demand coupling feeding torque to the secondary axle and reports its state on the bus. GM's 2025 ECM tables (25OBDG03B) test the secondary-axle signal every 12.5 ms for faulty rolling counters, protection values or checksums; 8 errors among 18 checks, with at least 11 V and 5 s of stable operation, record a Type B fault, which lights the MIL on a second faulty trip. Ford's 2014 code interpretation also marks U0414 as a MIL code. Lost contact with the module is U0114, a software mismatch U0314. Expect an AWD warning and drive on the primary axle until the data are valid again.
U0414 at a glance
- Check engine lightYes, usually on
- Emissions testNot an emissions code
- Limp modePossible
- Repair difficultyHard
- Typical labor0.5 to 4 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U0414
- AWD or 4WD warning in the cluster
- Drive on the primary axle only
- Check engine light after two trips
Common causes of U0414
- PossibleFour-wheel-drive clutch module sends faulty values (internal fault, moisture)
- PossibleDisturbed CAN traffic from connectors, wiring or low supply voltage
- Less likelyClutch module and receiver on software levels that do not match
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Awd clutch control moduleCAN bus wiring
What each part of U0414 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 U0414 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 U0414
What does U0414 mean?
U0414 means "Invalid Data Received From Four-Wheel Drive Clutch Control Module". U0414 is set when a listener, usually the engine controller, receives frames from the four-wheel-drive clutch control module but cannot trust what they carry. It is a generic code, so it means the same on every make.
Is it safe to drive with U0414?
Drive gently and only to a workshop. With U0414 the car can go into limp mode (reduced power) to protect itself.
Will U0414 fail an emissions test?
U0414 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 U0414 to fix?
Difficulty: hard. A typical repair takes 0.5 to 4 hours of work. This is a job for a workshop.
Will U0414 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.