Copyright 2002-2004 Triple S Customs 

LEXUS SC430 2002-2003 

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Copyright 2002-2004 Triple S Customs 

2

WIRING INFORMATION: 2002 Lexus SC430 

WIRE 

WIRE COLOR 

WIRE LOCATION 

12V CONSTANT WIRE 

BLACK/RED 

Ignition Harness 

STARTER WIRE 

WHITE/RED 

Ignition Harness 

IGNITION WIRE 

BLACK 

Ignition Harness 

SECOND IGNITION WIRE 

BLUE          (THIN) 

Ignition Harness 

ACCESSORY WIRE 

WHITE/GREEN   (THIN) 

Ignition Harness 

POWER DOOR LOCK (-) 

BLUE/BLACK 

At Door Module Inside Driver Door 

POWER DOOR UNLOCK (-) 

BLUE/WHITE 

At Door Module Inside Driver Door 

Test door lock wires by using the key in the driver door. 
PARKING LIGHTS (-) 

YELLOW (Hazard lights) 

Center Plug Of The A/C Display Unit 

DOOR TRIGGER (-) 

BLUE 

At Courtesy Light Under Dash 

DOME SUPERVISION 

COMES ON WITH UNLOCK 

 

TRUNK TRIGGER (-) 

PINK 

At Light In Trunk 

HOOD TRIGGER (-) 

RED 

At Pin Switch In Hood Latch 

TRUNK RELEASE (-) 

WHITE 

At Trunk Release Switch 

FUEL DOOR RELEASE (-) 

BLUE/ORANGE 

At Fuel Door Release Switch 

FACTRY ALARM ARM 

ARMS WITH LOCK 

 

FACTRY ALARM DISARM 

DISARMS WITH UNLOCK 

 

DISARM NO UNLOCK (-) 

GREEN    (IGNITION KEY SENSE) 

4-Pin Connector At Ignition Harness 

TACHOMETER WIRE 

BLACK/YELLOW 

At Data Link Connector Under Dash On 
Driver’s Side 

BRAKE WIRE (+) 

GREEN/WHITE 

At Brake Pedal Switch 

HORN TRIGGER (-) 

RED/BLUE 

Inside Under Hood Fuse Box 

This vehicle is equipped with a factory immobilizer system. This must be bypassed when installing a remote start system. 

 

  
WIRING INFORMATION: 2003 Lexus SC430 

WIRE 

WIRE COLOR 

WIRE LOCATION 

12V CONSTANT WIRE 

BLACK/RED 

Ignition Harness 

STARTER WIRE 

WHITE/RED 

Ignition Harness 

IGNITION WIRE 

BLACK 

Ignition Harness 

SECOND IGNITION WIRE 

BLUE          (THIN) 

Ignition Harness 

ACCESSORY WIRE 

WHITE/GREEN   (THIN) 

Ignition Harness 

POWER DOOR LOCK (-) 

BLUE/BLACK 

At Door Module Inside Driver Door 

POWER DOOR UNLOCK (-) 

BLUE/WHITE 

At Door Module Inside Driver Door 

Test door lock wires by using the key in the driver door. 
PARKING LIGHTS (-) 

YELLOW (Hazard lights) 

Center Plug Of The A/C Display Unit 

DOOR TRIGGER (-) 

BLUE 

At Courtesy Light Under Dash 

DOME SUPERVISION 

COMES ON WITH UNLOCK 

 

TRUNK TRIGGER (-) 

PINK 

At Light In Trunk 

HOOD TRIGGER (-) 

RED 

At Pin Switch In Hood Latch 

TRUNK RELEASE (-) 

WHITE 

At Trunk Release Switch 

FUEL DOOR RELEASE (-) 

BLUE/ORANGE 

At Fuel Door Release Switch 

FACTRY ALARM ARM 

ARMS WITH LOCK 

 

FACTRY ALARM DISARM 

DISARMS WITH UNLOCK 

 

DISARM NO UNLOCK (-) 

GREEN    (IGNITION KEY SENSE) 

4-Pin Connector At Ignition Harness 

TACHOMETER WIRE 

BLACK/YELLOW 

At Data Link Connector Under Dash On 
Driver’s Side 

BRAKE WIRE (+) 

GREEN/WHITE 

At Brake Pedal Switch 

HORN TRIGGER (-) 

RED/BLUE 

Inside Under Hood Fuse Box 

This vehicle is equipped with a factory immobilizer system. This must be bypassed when installing a remote start system.