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Vehicle Wiring Details for your
2009-2011 Lexus GS350 Wiring Diagram
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Listed below is the vehicle specific wiring diagram for your car alarm, remote starter or keyless entry installation into your 2009-2011 Lexus GS350 . This information outlines the wires location, color and polarity to help you identify the proper connection spots in the vehicle. Please be sure to test all of your wires with a digital multimeter before making any connections. More information on using a multimeter and testing wires please see our Technical Support Area.

 PART   COLOR  LOCATION
 12 VOLT CONSTANT   WHITE (+)   @ DRIVERS DASH FUSE BOX, (WHITE, 1-PIN PLUG) PIN 1
 STARTER  PINK (-)  @ ENGINE SWITCH, (BLACK, 14-PIN PLUG) PIN 7
 STARTER 2  BLACK (-)  @ ENGINE SWITCH, (BLACK, 14-PIN PLUG) PIN 2
 IGNITION 1  WHITE (+)  @ PASSENGER DASH FUSE BOX, (GRAY, 10-PIN PLUG(K) PIN 3
 IGNITION 2  LT. BLUE (+)  @ PASSENGER DASH FUSE BOX, (REAR, WHITE, 32-PIN PLUG) PIN 6
 IGNITION 3  N/A  
 ACCESSORY/HEATER BLOWER 1  GREEN (+)  @ PASSENGER DASH FUSE BOX, (REAR, WHITE, 32-PIN PLUG) PIN 2
 ACCESSORY/HEATER BLOWER 2  N/A  
 KEYSENSE  N/A  
 PARKING LIGHTS ( - )  BLUE (-)  @ HEADLIGHT SWITCH, (WHITE, 20-PIN PLUG) PIN 18
 PARKING LIGHTS ( + )  GREEN (+) (Front) NOTE #9  @ (LH) HEADLIGHT or ENGINE COMPARTMENT FUSE BOX, (BLACK, 13-PIN PLUG) PIN 9
 POWER LOCK  BLUE (TYPE B), (TEST with PASSENGER Switch) NOTE #2  @ FRONT (RH) DOOR ECU, (WHITE, 24-PIN LUG) PIN 22, in PASSENGER DOOR
 POWER UNLOCK  GREEN (TYPE B), (TEST with PASSENGER Switch) NOTE #3  @ FRONT (RH) DOOR ECU, (WHITE, 24-PIN LUG) PIN 23, in PASSENGER DOOR
 DOOR TRIGGER  RED (-)  @ BECU (RH), (WHITE, 16-PIN PLUG) PIN 14, NOTE #7
 DOMELIGHT SUPERVISION  BLUE (-)  @ BECU (LH), (WHITE, 10-PIN PLUG) PIN 2, NOTE #8
 TRUNK RELEASE  BLUE (-)  @ RELEASE SWITCH, (BLACK, 5-PIN PLUG) PIN 4 or BECU (RH), (WHITE, 26-PIN PLUG) PIN 21, NOTE #7
 SLIDING POWER DOOR  N/A  
 HORN  YELLOW (-)  @ HORN SWITCH, (BLACK, 12-PIN PLUG) PIN 8
 TACH  WHITE (AC)  @ DATA LINK Connector, (WHITE, 16-PIN PLUG) PIN 9, under the Drivers Dash
 WAIT TO START LIGHT  N/A  
 BRAKE  RED/BLACK (+)  @ BRAKE SWITCH or PASSENGER DASH FUSE BOX, (GRAY, 10-PIN PLUG(K) PIN 1
 FACTORY ALARM DISARM   PINK (-) Requires Double Pulse, NOTE #4  @ POWER WINDOW MASTER SWITCH, 20-PIN PLUG) PIN 13
 ANTI-THEFT  TOYOTA'S TRANSPONDER SYSTEM, See NOTE #1  
 EXTRA INFORMATION
 NOTE #1: LEXUS TRANSPONDER ANTI-THEFT SYSTEM, Requires Bypass Module, Part # 791 Bypass Module (for REMOTE STARTING ONLY!) an Extra Ignition key is required to be placed inside this module for Operation. Part # PK-ALL Bypass Module (for REMOTE STARTING ONLY!) KEYLESS BYPASS NO KEY is required for Operation. To order the Bypass Module go to the INTERFACE BYPASS MODULE Page on this website NOTE #2: this wire is only needed if the Door Locks do not function with the Aftermarket System while the vehicle is running. All other times just use the Factory Alarm Arm wire. NOTE #3: this wire is only needed if the Door Locks do not function with the Aftermarket System while the vehicle is running. All other times just use the Factory Alarm Disarm wire. NOTE #4: TEST this wire while turning the Key in the Drivers Door, this wire will also Unlock the Doors. NOTE #5: the PSCU, (Power Source Control Unit) is the Module, on the far RIGHT, behind the GLOVE BOX. NOTE #6: TEST this wire while opening the Trunk with the Handle on the Rear of the vehicle. NOTE #7: the BECU (RH) (Body Electronic Control Unit) (Right Hand) is part of the PASSENGER SIDE FUSE BOX, attached to the Right side. NOTE #8: the BECU (LH) (Body Electronic Control Unit) (Left Hand) is on the Right side of the DRIVERS SIDE FUSE BOX, under the DRIVERS DASH NOTE #9: the REAR (LH) TAILLIGHT is PURPLE (+) and the REAR (RH) TAILLIGHT is BROWN(+) @ the LUGGAGE COMPARTMENT FUSE BOX, (WHITE, 22-PIN PLUG) PINS 8 and 22
 
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