Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Lost Communication with Main Body ECU (U0142)

Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART Power Mirror Control System (w/o Memory) DTC No. Detection Item Link U0142 Lost Communication with Main Body ECU ...

Driver Side Power Mirror cannot be Adjusted with Power Mirror Switch

DESCRIPTION The multiplex network master switch assembly sends the mirror adjust switch signals to the main body ECU (multiplex network body ECU) via LIN communication. The main body ECU (multiplex ne ...

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Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Lighting System: Back Door Courtesy Switch Circuit
DESCRIPTION The multiplex network door ECU receives the courtesy light switch signal from the back door lock assembly and transmits it to the main body ECU (multiplex network body ECU) via CAN communication. WIRING DIAGRAM PROCEDURE 1. READ VALUE USING TECHSTREAM (a) Connect the Techstream ...

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Immobilizer system The vehicle's keys have built-in transponder chips that prevent the hybrid system from starting if a key has not been previously registered in the vehicle's on-board computer. Never leave the keys inside the vehicle when you leave the vehicle. This system is designed to ...