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LEXUS GS300
MODEL YEAR(S
GS300 1998-2003
KEY T-HARNESS IMMOBILIZER
N/A N/A LEXUS TRANSPONDER ANTI-THEFT SYSTEM, Requires 791 Bypass Module and extra Ignition Key
PART COLOR LOCATION DIAGRAM
12 VOLT CONSTANT WHITE/BLUE (+) IGNITION SWITCH HARNESS
STARTER BLACK (+) IGNITION SWITCH HARNESS
STARTER 2 N/A
IGNITION 1 BLACK/YELLOW (+) IGNITION SWITCH HARNESS
IGNITION 2 BLACK/WHITE (+) IGNITION SWITCH HARNESS
IGNITION 3 N/A
ACCESSORY/HEATER BLOWER 1 BLUE/YELLOW (+) IGNITION SWITCH HARNESS
ACCESSORY/HEATER BLOWER 2 N/A
KEYSENSE YELLOW (-) IGNITION SWITCH HARNESS
PARKING LIGHTS ( - ) RED/YELLOW (-) UNDER STEERING COLUMN
PARKING LIGHTS ( + ) GREEN (+) @ BOTTOM RIGHT OF FUSE PANEL
POWER LOCK See NOTE *1 See DIAGRAM 31101_GS300_TOYOTA and LEXUS door lock interface.pdf
POWER UNLOCK See NOTE *1 See DIAGRAM
LOCK MOTOR WIRE GREEN/RED (+) @ DRIVERS DOOR MODULE in DRIVERS DOOR
DOOR TRIGGER GREEN (-) @ PIN 13 IN 25 PIN PLUG AT BODY ECU, See NOTE *2
DOMELIGHT SUPERVISION USE DOOR TRIGGER, Requires Part #775 Relay
TRUNK RELEASE BLUE (+), Requires Part #775 Relay @ 18 PIN PLUG, IN DRIVERS KICK PANEL
SLIDING POWER DOOR N/A
HORN GREEN/BLACK (-) @ STEERING COLUMN HARNESS
TACH BLACK/YELLOW IN PIN 16 AT 28-PIN PLUG INSIDE ECU BOX, See NOTE *2
WAIT TO START LIGHT N/A
BRAKE GREEN/WHITE (+) IN 20-PIN PLUG IN DRIVERS KICK PANEL
FACTORY ALARM DISARM DISARMS with KEYSENSE wire @ IGNITION SWITCH HARNESS
ANTI-THEFT TRANSPONDER ANTI-THEFT SYSTEM, REQUIRES 791 BYPASS MODULE AND EXTRA IGNITION KEY TRANSPONDER @ IGNITION SWITCH TUMBLER
NOTES
NOTE *1 THIS VEHICLE'S DOORLOCKS ARE SPECIAL AND WILL REQUIRE AN EXTRA RELAY, PART #775 AND 2 DIODES, TO CONNECT, See DIAGRAM





NOTE *2 THE BODY ECU (ELECTRONIC CONTROL MODULE) IS LOCATED BEHIND THE FUSE PANEL IN THE PASSENGER KICK PANEL AT BODY ECU.





NOTE *3 THE ECU (ELECTRONIC CONTROL UNIT) IS LOCATED UNDER THE HOOD ON THE DRIVERS SIDE.
LINK 1 LINK TEXT 1 LINK 2 LINK TEXT 2