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Home >> Lexus >> 2021 >> RC F Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Can Communication System - Diagnostic Codes (1 Of 3) >> Can Communication System >> DTC U0200: Lost Communication with "Door Control Module B" [11/2017 - 03/2019] >> Description

DTC U0200: Lost Communication with "Door Control Module B" [11/2017 - 03/2019]: Description

DTC No. Detection Item DTC Detection Condition Trouble Area Note
U0200 Lost Communication with "Door Control Module B" No communication from the outer mirror control ECU assembly (for driver side) continues.
  • Outer mirror control ECU assembly (for driver side) branch line or connector
  • Power source circuit of outer mirror control ECU assembly (for driver side)
  • Outer mirror control ECU assembly (for driver side) ground circuit
  • Outer mirror control ECU assembly (for driver side)
HINT: 
The main body ECU (multiplex network body ECU) stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 1.

HINT: 

This diagnostic procedure is for when DTC U0200 is output by the main body ECU (multiplex network body ECU) (Techstream display: Main Body).