DESCRIPTION
The main body ECU (multiplex network body ECU) controls the outside handle foot lights.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Before replacing the main body ECU (multiplex network body ECU), refer to Registration.
Click here
PROCEDURE
1. | PERFORM ACTIVE TEST USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body / Active Test.
(e) Perform the Active Test according to the display on the Techstream.
Body Electrical > Main Body > Active Test Tester Display | Measurement Item | Control Range | Diagnostic Note |
---|---|---|---|
Exterior Light | Outside handle foot lights | OFF or ON | - |
Tester Display |
---|
Exterior Light |
OK:
Outside handle foot lights illuminate.
OK | ![]() | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
2. | CHECK HARNESS AND CONNECTOR (DOOR OUTSIDE HANDLE ASSEMBLY LH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) |
(a) Disconnect the N11 front door outside handle assembly LH connector.
(b) Disconnect the P4 rear door outside handle assembly LH connector.
(c) Disconnect the J9 main body ECU (multiplex network body ECU) connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
N11-1 (OLP) - J9-4 (MILE) | Always | Below 1 Ω |
P4-1 (OLP) - J9-4 (MILE) | Always | Below 1 Ω |
N11-1 (OLP), P4-1 (OLP) or J9-4 (MILE) - Body ground | Always | 10 kΩ or higher |
OK | ![]() | REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Hood Support: Removal
REMOVAL CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE 1. REMOVE FRONT WIPER MOTOR AND LINK ASSEMBLY Click here 2. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY Click here 3. REMOVE HOOD SUPPORT ASSEMBL ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Power Mirror Control System (w/o Memory): Reverse Shift-linked Function of Power Mirrors does not Operate
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