PRE-CRASH SAFETY SYSTEM, Diagnostic DTC:U0100, U0122, U0146, U0151, U1101

DTC Code DTC Name
U0100 Lost Communication with ECM / PCM "A"
U0122 Lost Communication with Vehicle Dynamics Control Module
U0146 Lost Communication with Gateway "A"
U0151 Lost Communication with Airbag ECU
U1101 Lost Communication with Distance Control ECU

DESCRIPTION

The seat belt control ECU receives signals from the skid control ECU, gateway ECU, center airbag sensor assembly and distance control ECU via CAN communication system.

The distance control ECU receives signals from the ECM via CAN communication system.

DTC No. DTC Detection Item Inspection Area
U0100

  • ECM communication error

  • CAN communication system

  • ECM

  • Distance control ECU
U0122

  • Skid control ECU communication error

  • CAN communication system

  • Skid control ECU

  • Seat belt control ECU
U0146

  • Network gateway ECU communication error

  • CAN communication system

  • Gateway ECU

  • Seat belt control ECU
U0151

  • Center airbag sensor communication error

  • CAN communication system

  • Center airbag sensor assembly

  • Seat belt control ECU
U1101

  • Distance control ECU communication error

  • CAN communication system

  • Distance control ECU

  • Seat belt control ECU

Tech Tips

When two or more DTCs starting with "U" are output simultaneously, inspect the connectors and wire harness of each ECU.

INSPECTION PROCEDURE

Refer to CAN Communication System Click here.