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LEXUS IS300
MODEL YEAR(S
IS300 2001-2003
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 (+) and WHITE/RED (+) @ IGNITION SWITCH HARNESS
STARTER BLACK/WHITE (+) @ IGNITION SWITCH HARNESS
STARTER 2 N/A
IGNITION 1 BLACK/RED (+) @ IGNITION SWITCH HARNESS
IGNITION 2 BLUE/RED (+) @ IGNITION SWITCH HARNESS
IGNITION 3 N/A
ACCESSORY/HEATER BLOWER 1 RED (+) @ IGNITION SWITCH HARNESS
ACCESSORY/HEATER BLOWER 2 N/A
KEYSENSE BLACK/YELLOW (-) @ IGNITION SWITCH HARNESS
PARKING LIGHTS ( - ) RED (-) @ HEADLIGHT SWITCH
PARKING LIGHTS ( + ) GREEN (+) IN DRIVERS KICK PANEL, HARNESS to REAR of VEHICLE
POWER LOCK See NOTE #1 See DIAGRAM 14301_IS300_TOYOTA and LEXUS door lock interface.pdf
POWER UNLOCK See NOTE #1 See DIAGRAM
LOCK MOTOR WIRE GREEN/YELLOW (5-WIRE TYPE) @ BODY ECU, See NOTE #4
DOOR TRIGGER See NOTE #2 @ BODY ECU, See NOTE #4 15317_IS300_(-) NEGATIVE DOOR PIN ISOLATION CIRCUIT.pdf
DOMELIGHT SUPERVISION RED/GREEN (-) @ BODY ECU, See NOTE #4
TRUNK RELEASE BLUE/WHITE (5 WIRE) See NOTE #5 @ BODY ECU, See NOTE #4 15317_IS300_5-WIRE TRUNK RELEASE DIAGRAM.pdf
SLIDING POWER DOOR N/A
HORN GREEN/WHITE (-) @ STEERING COLUMN HARNESS
TACH BLACK @ IGNITER, See NOTE #3
WAIT TO START LIGHT N/A
BRAKE GREEN/WHITE (+) @ SWITCH ABOVE BRAKE PEDAL
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 DRIVERS DOOR TRIGGER IS RED/GREEN (-),THE FRONT PASSENGER DOOR IS RED/BLACK (-),REAR DOOR ARE RED/WHITE (-). WHEN CONNECTING TO AN ALARM SYSTEM,USE ALL 3 DOOR TRIGGER WIRES AND DIODE ISOLATE. TO CONNECT, See DIAGRAM





NOTE #3: THE IGNITOR IS ON THE DRIVERS SIDE STRUT TOWER.





NOTE #4: THE BODY ECU (ELECTRONIC CONTROL UNIT) IS ATTACHED TO THE TOP OF THE FUSEBOX.





NOTE #5: THE TRUNK/HATCH RELEASE ON THIS VEHICLE WILL REQUIRE AN EXTRA RELAY PART #775 FOR THE 5-WIRE SYSTEM, TO CONNECT, See DIAGRAM
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