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Home >> Lexus >> 2016 >> GS 450h Base >> Repair and Diagnosis (Single Page) >> Electrical >> Gauges >> HEADUP Display System (Diagnostic Codes & Circuit Tests) >> HEADUP Display System >> DTC U0142: Lost Communication with Body Control Module "B"; DTC U0163: Lost Communication with Navigation Control Module; DTC U023A: Lost Communication with Front Camera Module; DTC U1104: Lost Communication with Driving Support ECU [10/2015 - ] >> Description
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DTC U0142: Lost Communication with Body Control Module "B"; DTC U0163: Lost Communication with Navigation Control Module; DTC U023A: Lost Communication with Front Camera Module; DTC U1104: Lost Communication with Driving Support ECU [10/2015 - ]: Description

The combination meter mirror ECU communicates with the ECM, main body ECU (multiplex network body ECU), multi-media module receiver assembly, forward recognition camera*1 and driving support ECU assembly*1 via CAN communication.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory
U0142 Lost Communication with Body Control Module "B" When IG voltage is 9.5 V or more and the following condition is detected:
  • No communication with main body ECU (multiplex network body ECU) continues for 3 seconds or more
  • Main body ECU (multiplex network body ECU)
  • CAN communication system
  • Combination meter mirror ECU
DTC stored
U0163 Lost Communication with Navigation Control Module When IG voltage is 9.5 V or more and the following condition is detected:
  • No communication with multi-media module receiver assembly continues for 3 seconds or more
  • Multi-media module receiver assembly
  • CAN communication system
  • Combination meter mirror ECU
DTC stored
U023A Lost Communication with Front Camera Module When IG voltage is 9.5 V or more and the following condition is detected:
  • No communication with forward recognition camera continues for 10 seconds or more
  • Forward recognition camera
  • CAN communication system
  • Combination meter mirror ECU
DTC stored
U1104 Lost Communication with Driving Support ECU When IG voltage is 9.5 V or more and the following condition is detected:
  • No communication with driving support ECU assembly continues for 10 seconds or more
  • Driving support ECU assembly
  • CAN communication system
  • Combination meter mirror ECU
DTC stored