Network, generic

U0422 Invalid Data Received From Body Control Module

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modeNo

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.

Likely causes

Battery disconnect or low voltage leaves default values in BCM messages
Missing or wrong BCM configuration such as VIN, tire size or vehicle options
BCM or receiver software fault, cured by an update

Symptoms

  • Check engine light on some vehicles
  • Cruise control or driver assistance unavailable
  • Wrong outside temperature or A/C not working

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€50–700
Time0.3–2 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

body control modulecan bus wiring

Related codes

U0140U0322U0431U0443

References: gsi.ext.gm.com, newtonnet.co.uk, static.nhtsa.gov, static.nhtsa.gov.