U0074

Control Module Communication Bus B Off

DTC U0074, sometimes indicated as U007400 is an OBD diagnostic trouble code indicating a generic fault with the vehicle user network.

  • U0074: Control Module Communication Bus B Off
  • U0074: Control Module Communication Bus "B" Off
  • U0074: Control module communication bus B – data bus OFF
  • U0074 00: Control module communication bus B - data bus OFF

DTC Trouble Code Search
Bulletins

Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.

  • PIP5427B - ENGINE (PWS)
    CHEVROLET: This preliminary information communication provides information to the technician about vehicle that may have a service engine soon malfunction indicator lamp on. Technician may find diagnostic trouble codes P2635, U0074 and or U18A2. Techn
  • PIP5427A - FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES
    CHEVROLET: This preliminary information communication provides information to the technician about vehicle that may have a service engine soon malfunction indicator lamp on. Technician may find diagnostic trouble codes P2635, U0074 and or U18A2. Techn
  • 9003640 - EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
    CHRYSLER: Electronic shift module if dtc's U11C3, U0074 are present stored or active, please contact pemi sabageh at cell (519) 300-0629 or david dysarz at (248) 944-0310. If you do not receive a call within 15 minutes please proceed with the repa
  • PIP5427 - ELECTRICAL SYSTEM
    CHEVROLET: This preliminary information communication provides information to the technician about vehicle that may have a service engine soon malfunction indicator lamp on. Technician may find diagnostic trouble codes P2635, U0074 and or U18A2. Techn
Previous Code: U0073 | Next Code: U0100