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Home >> Toyota >> 2022 >> RAV4 LE, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 70 (Lighting System (W/ AFS) - Diagnostic Codes & Circuit Tests) >> LIGHTING SYSTEM (w/ AFS) >> DTC U1000: CAN Communication Failure (Message Registry) [02/2019 - 12/2021] >> Description

DTC U1000: CAN Communication Failure (Message Registry) [02/2019 - 12/2021]: Description

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The headlight ECU sub-assembly LH or headlight ECU sub-assembly RH stores this DTC if it detects an internal malfunction related to the CAN communication system.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Note
U1000 CAN Communication Failure (Message Registry) Detection condition: 
  1. The power switch is on (IG)

Malfunction status: 
  1. CAN communication failure

Malfunction duration: 
  1. -
Headlight ECU sub-assembly LH AFS -
DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Note
U1000 CAN Communication Failure (Message Registry) Detection condition: 
  1. The power switch is on (IG)

Malfunction status: 
  1. CAN communication failure

Malfunction duration: 
  1. -
Headlight ECU sub-assembly RH AFS (Sub) -