Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: System Description
SYSTEM DESCRIPTION
GENERAL
(a) The occupant detection ECU estimates the weight of an occupant based on signals received from the 2 occupant classification sensors. The occupant detection ECU determines whether the front passenger seat is occupied and classifies the occupant based on the estimated weight, passenger side buckle switch state, acceleration sensor signal and vehicle speed signal. The result determined by the occupant detection ECU is sent to the airbag sensor assembly via CAN communication.
(b) The airbag sensor assembly controls the operation of the passenger airbag ON/OFF indicator and restricts the operation of the instrument panel passenger airbag assembly and front seat cushion airbag assembly RH.
System Diagram
SYSTEM DIAGRAM Communication Table Transmitting ECU (Transmitter) Receiving ECU Signal Communication Method Airbag Sensor Assembly Occupant Detection ECU
Crash detection signal
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How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the occupant classification system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEX ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Meter / Gauge System: Open in Turn Signal Circuit (B1507)
DESCRIPTION These DTCs are stored when the combination meter assembly detects an open in a turn signal light circuit, or a short in a turn signal light circuit or the hazard warning light circuit. HINT:
If there is an open in a front turn signal light circuit or rear turn signal light circuit, th ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Intelligent Clearance Sonar System: Fr Sensor Initialization Incomplete (C1AF3)
DESCRIPTION When it is judged that the front sensors have not been initialized, the clearance warning ECU assembly stores DTC C1AF3. DTC No. Detection Item DTC Detection Condition Trouble Area C1AF3 Fr Sensor Initialization Incomplete Front sensor not initialized
Initialize fro ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
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- Instrument cluster
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- When trouble arises
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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