LS 430 V8-4.3L (3UZ-FE) (2002)
Wiring Diagram
Step 1
INSPECTION PROCEDURE
Rear Seat Belt Buckle Illumination Circuit
CIRCUIT DESCRIPTION
Receiving the door courtesy signal from the door ECU, the luggage room J/B ECU makes the rear seat buckle illumination on the opened door side come
on.
Then, after the rear door is closed, it maintains the illumination ON for 15 ± 3 seconds. (the Illuminated entry system)
When all the doors are locked during this timer operation, it immediately lights off.