Lexus IS250 · Service Manual RESTRAINTS

U0100

Diagnostic trouble codes

DESCRIPTION

The seat belt control ECU receives signals from the skid control ECU, gateway ECU, center airbag sensor assembly, distance control ECU via the CAN communication system.
The distance control ECU receives signals from the ECM via the CAN communication system.
DTC No.
 DTC Detection Item
 Inspection Area
U0100
 ECM communication error
  1. CAN communication system
  2. ECM
  3. Distance control ECU
U0122
 Skid control ECU communication error
  1. CAN communication system
  2. Skid control ECU
  3. Seat belt control ECU
U0146
 Gateway ECU communication error
  1. CAN communication system
  2. Gateway ECU
  3. Seat belt control ECU
U0151
 Center airbag sensor communication error
  1. CAN communication system
  2. Center airbag sensor assembly
  3. Seat belt control ECU
U1101
 Distance control ECU communication error
  1. CAN communication system
  2. Distance control ECU
  3. Seat belt control ECU

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


INSPECTION PROCEDURE

Refer to the U0100 (CAN communication system (LHD)) (Click here).
Refer to the U0100 (CAN communication system (RHD)) (Click here).
Refer to the U0122 (CAN communication system (LHD)) (Click here).
Refer to the U0122 (CAN communication system (RHD)) (Click here).
Refer to the U0146 (CAN communication system (LHD)) (Click here).
Refer to the U0146 (CAN communication system (RHD)) (Click here).
Refer to the U0151 (CAN communication system (LHD)) (Click here).
Refer to the U0151 (CAN communication system (RHD)) (Click here).
Refer to the U1101 (CAN communication system (LHD)) (Click here).
Refer to the U1101 (CAN communication system (RHD)) (Click here).

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