U0422 code meaning
Invalid Data Received From Body Control Module
Network system Generic code U04xx codes Check engine light
What U0422 means
U0422 applies to cars with a single body controller; with several, U0431 names body control module A and U0443 to U0446 modules B to E. A receiver logs it when BCM frames arrive but carry unusable content. GM's 2025 ECM checks body information frames with 8 faults in 18 samples and serial data frames with 3 in 10, after 5 s at 11 V or more, as Type B, so the MIL follows a second faulty trip. Ford's 2012 OBD guide has the PCM set U0422 without MIL when VIN, tire, axle or vehicle configuration data from the BCM lie outside their valid range, or when the engine-off timer reads FFFFh after a battery disconnect. Volkswagen's 2014 Touareg book uses it for an ambient temperature of 00h. FCA links an active U0422 in the hybrid processor of the 2021 Pacifica to a check engine light. U0140 is lost contact.
U0422 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyWorkshop only
- Typical labor0.3 to 2 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U0422
- Check engine light on some vehicles
- Cruise control or driver assistance unavailable
- Wrong outside temperature or A/C not working
Common causes of U0422
- Most likelyBattery disconnect or low voltage leaves default values in BCM messages
- PossibleMissing or wrong BCM configuration such as VIN, tire size or vehicle options
- PossibleBCM or receiver software fault, cured by an update
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Body control moduleCAN bus wiring
What each part of U0422 means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 22 | The exact fault in that area. |
What to do next
- Note U0422 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 U0422
What does U0422 mean?
U0422 means "Invalid Data Received From Body Control Module". U0422 applies to cars with a single body controller; with several, U0431 names body control module A and U0443 to U0446 modules B to E. It is a generic code, so it means the same on every make.
Is it safe to drive with U0422?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will U0422 fail an emissions test?
Yes, it can. U0422 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is U0422 to fix?
Difficulty: workshop only. A typical repair takes 0.3 to 2 hours of work. This is a job for a workshop.
Will U0422 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.