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Home >> Toyota >> 2012 >> Sienna SE >> Repair and Diagnosis (Single Page) >> Restraints >> Restraints Control Systems >> Pre-Collision System [Diagnostic Codes & Circuit Tests] >> Pre-Collision System >> DTC U0122: Lost Communication with Vehicle Dynamics Control Module; DTC U0123: Lost Communication with Yaw Rate Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0140: Lost Communication with Main Body ECU; DTC U0151: Lost Communication with Airbag ECU; DTC U0235: Lost Communication with Cruise Control Front Distance Range Sensor; DTC U1100: Lost Communication with Seat Belt Control ECU; DTC U1104: Lost Communication with Driving Support ECU >> Inspection Procedure
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Inspection Procedure

NOTE:
  • When replacing the millimeter wave radar sensor with a new one, make sure to perform Adjust Millimeter Wave Radar Sensor. Refer to ADJUSTMENT .
  • Inspect the fuses for circuits related to this system between performing the following inspection procedure.
  • Confirm that the connector is securely connected, as a partially connected connector is suspected for the cause of this DTC.
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