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Home >> Lexus >> 2013 >> CT 200h Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Can Communication System (Diagnostic Codes & Circuit Tests) >> Can Communication System >> DTC U1002: Lost Communication with Gateway Module (Sensor Bus); DTC U0235: Lost Communication with Cruise Control Front Distance Range Sensor >> Description
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DTC U1002: Lost Communication with Gateway Module (Sensor Bus); DTC U0235: Lost Communication with Cruise Control Front Distance Range Sensor: Description

The driving support ECU assembly will store this DTC when no signals can be received from the ECUs that have been memorized as those that are connected to the sensor bus.

DTC No. DTC Detection Condition Trouble Area
U1002 Driving support ECU assembly cannot receive signals from all ECUs that have been memorized as those connected to the sensor bus.
  • Open or short in sensor bus main wire or connector
  • Driving support ECU assembly
  • Millimeter wave radar sensor assembly
U0235 No communication from the millimeter wave radar sensor assembly continues.
  • Open or short in sensor bus main wire or connector
  • Driving support ECU assembly
  • Millimeter wave radar sensor assembly

HINT: 

The diagnosis procedure is for when DTC U1002 is output by the driving support ECU assembly (Techstream display: Pre-Collision 2).