LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2000 >> GS 400 V8-4.0L (1UZ-FE) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Relays and Modules - Computers and Control Systems >> Body Control Module >> Testing and Inspection >> Component Tests and General Diagnostics >> Horn Circuit
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Horn Circuit

Horn Circuit / Body No.1 ECU

CIRCUIT DESCRIPTION
The horn is connected to the body No.1 ECU and activated by the body No.1 ECU during warning of the theft deterrent system.

Wiring Diagram:






Steps 1 - 2:




INSPECTION PROCEDURE