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Home >> Lexus >> 2024 >> RX 500h >> Repair and Diagnosis >> External Pages >> Different car >> Section 13 (Can Communication System - Circuit Tests (1 Of 3) & Diagnostic Codes) >> CAN COMMUNICATION SYSTEM (for Gasoline Model) >> 4WD Control ECU Communication Stop Mode [10/2022 - ] >> Description

4WD Control ECU Communication Stop Mode [10/2022 - ]: Description

WARNING: This page is about a different car, the 2025 Lexus RX 350, 2024 Lexus RX 350, and 2023 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.
Detection Item Symptom Trouble Area
4WD Control ECU Communication Stop Mode Communication stop for "Four Wheel Drive Control" is indicated on "CAN Bus Check" screen of the GTS.
Refer to DIAGNOSIS SYSTEM [10/2022 - 08/2023] , or refer to DIAGNOSIS SYSTEM [08/2023 - 10/2024] , or refer to DIAGNOSIS SYSTEM [10/2024 - ]
  • 4WD ECU assembly branch line or connector
  • Power source circuit of 4WD ECU assembly
  • 4WD ECU assembly ground circuit
  • 4WD ECU assembly
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