INSTALLATION
PROCEDURE
1. INSTALL STEERING PAD SWITCH ASSEMBLY
(a) Engage the 2 claws and 2 pins to install the steering pad switch assembly.
(b) Install the 2 screws.
Torque:
2.4 N·m {24 kgf·cm, 21 in·lbf}
(c) Connect the steering pad switch connector to the spiral cable with sensor sub-assembly.
2. INSTALL HORN BUTTON ASSEMBLY
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Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Navigation System: Microphone Circuit
DESCRIPTION
The radio receiver assembly and telephone microphone assembly are connected to each other using the microphone connection detection signal lines.
Using this circuit, the DCM (telematics transceiver) sends power to the telephone microphone assembly, and the telephone microphone assem ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Sfi System: Readiness Monitor Drive Pattern
READINESS MONITOR DRIVE PATTERN PURPOSE OF READINESS TESTS
The On-Board Diagnostic (OBD II) system is designed to monitor the performance of emission related components, and indicate any detected abnormalities using DTCs (Diagnostic Trouble Codes). Since various components need to be monitored du ...