Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Entry Interior Alarm does not Sound

NOTICE:

• The smart access system with push-button start (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart access system with push-button start (for Entry Function) after confirming that the communication systems are functioning properly.

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• When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Access. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.

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• After repair, confirm that no DTCs are output.

Driver Side Door Entry Lock and Unlock Functions do not Operate

DESCRIPTION If the entry lock and unlock functions do not operate for the driver door only, the request code may not be being transmitted from the driver door or the front door outside handle assembly ...

Back Door Entry Unlock Function does not Operate

DESCRIPTION If the entry unlock function does not operate for the back door only, but the entry lock function operates, the request code is being transmitted properly from the back door. In this case, ...

Other materials:

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Automatic Transaxle System: Manual Shifting Test
MANUAL SHIFTING TEST MANUAL SHIFTING TEST HINT: Using this test, it can be determined whether a problem is in an electrical circuit or if it is a mechanical problem in the transaxle. If any abnormalities are found in the following test, the problem is in the transaxle itself. (a) Disconnect ...

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Front Power Seat Control System (w/ Memory): Terminals Of Ecu
TERMINALS OF ECU CHECK POSITION CONTROL ECU AND SWITCH ASSEMBLY LH (a) Disconnect the c5 and c6 position control ECU and switch assembly LH connectors. (b) Measure the voltage and resistance according to the value(s) in the table below. HINT: Measure the values on the wire harness side with the con ...