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Home >> Lexus >> 2008 >> IS 250 RWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 49 (Pre-Collision) >> Pre-Collision System >> DTC U0100 Lost Communication with ECM / PCM "A"; DTC U0122 Lost Communication with Vehicle Dynamics Control Module; DTC U0146 Lost Communication with Gateway "A"; DTC U0151 Lost Communication with Airbag ECU; DTC U1101 Lost Communication with Distance Control ECU >> Description

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

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

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 CHART

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

HINT

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