Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Theft Deterrent System

Power Source Mode does not Change to ON (ACC)

DESCRIPTION If the engine switch is pressed with the electrical key transmitter sub-assembly in the cabin, the certification ECU (smart key ECU assembly) receives a signal and changes the power source ...

Precaution

PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cab ...

Other materials:

Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Theft Deterrent System: Security Horn Circuit
DESCRIPTION When the theft deterrent system is switched from the armed state to the alarm sounding state, the main body ECU (multiplex network body ECU) transmits a signal to cause the security horn assembly to sound at intervals of 0.4 seconds. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Bef ...

Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Seat Belt Warning System: Rear Seat Belt Warning Light Malfunction
DESCRIPTION The main body ECU (multiplex network body ECU) detects whether either rear door is open or closed based on the condition of the left and right courtesy light switches and then sends the rear door status signal to the combination meter assembly. The combination meter assembly detects the ...