LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2003 >> LS 430 >> Repair and Diagnosis >> External Pages >> Different car >> Section 99 (Multiplex Control Systems) >> Component Locations
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Component Locations

WARNING: This page is about a different car, the 2002 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For additional multiplex control system locations, see illustration. See Fig 1.
COMPONENT LOCATIONS

Component Location
Body Control Electronic Control Unit Attached To Driver Side Junction Block
Center Airbag Sensor Assembly Under Center Of Instrument Panel, On Floorpan Tunnel
Data Link Connector No. 1 (DLC1) Right Rear Corner Of Engine Compartment, On Idle Air Control Valve Bracket
Data Link Connector No. 3 (DLC3) Under Left Side Of Instrument Panel, To Right Of Driver Side Junction Block
Driver Door ECU In Driver Door Armrest
Driver Side Junction Block Left Side Of Instrument Panel, Behind Access Panel To Left Of Steering Column
Front Passenger Door ECU In Passenger Door Armrest
Multi-Display Information Center Center Of Instrument Panel, Just Above Air Vent Assembly
OPEN DOOR Indicator Light On Service Reminder Indicators & Warning Buzzer Display Center
Service Reminder Indicators & Warning Buzzer Display Center Part Of Multi-Display Information Center
Power Seat ECU (With Driving Position Memory) Under Driver Seat
Theft Deterrent ECU Behind Passenger Kick Panel
Wireless Door Lock Control Receiver In Right "C" Pillar
Fig 1: Locating Multiplex Control System Components
G00124324Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002