2007 Lexus Is250 Ignition Diagram

Vehicle Wiring Details for your 2006-2008 Lexus IS250 Wiring Diagram	Printer Friendly Version
Listed below is the vehicle specific wiring diagram for your car alarm, remote starter or keyless entry installation into your 2006-2008 Lexus IS250 . 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 FUSE BOX, 1-PIN PLUG  STARTER  BLACK (-)  @ POWER SWITCH, (BLACK, 14-PIN PLUG) PIN 7 or PSCM, (40-PIN PLUG) PIN 14, NOTE #5  STARTER 2  LT. BLUE (-)  @ POWER SWITCH, (BLACK, 14-PIN PLUG) PIN 2 or PSCM, (40-PIN PLUG) PIN 37, NOTE #5  IGNITION 1  LT. GREEN (+) (NOT for REMOTE START)  @ PSCM, (40-PIN PLUG) PIN 35, NOTE #5  IGNITION 2  PINK (+) (NOT for REMOTE START)  @ PSCM, (40-PIN PLUG) PIN 34, NOTE #5  IGNITION 3  N/A  ACCESSORY/HEATER BLOWER 1  LT. GREEN (+) (NOT for REMOTE START)  @ PSCM, (40-PIN PLUG) PIN 11, NOTE #5  ACCESSORY/HEATER BLOWER 2  N/A  KEYSENSE  N/A  PARKING LIGHTS ( - )  YELLOW (-)  @ DRIVERS FUSE BOX, 28-PIN PLUG, PIN 5  PARKING LIGHTS ( + )  BROWN (+) (Rear) NOTE #6  @ DRIVERS FUSE BOX, (GRAY, 30-PIN PLUG), PIN 24  POWER LOCK  BROWN (TYPE B), NOTE #2  @ PASSENGER FUSE BOX, (GRAY, 30-PIN PLUG) PIN 7  POWER UNLOCK  BLACK (TYPE B), NOTE #3  @ PASSENGER FUSE BOX, (GRAY, 30-PIN PLUG) PIN 10  DOOR TRIGGER  WHITE to RED (-)  @ BECU (RH), (16-PIN PLUG) PIN 14, NOTE #7  DOMELIGHT SUPERVISION  PURPLE to PINK (-)  @ BECU (LH), (10-PIN PLUG) PIN 2, NOTE #8  TRUNK RELEASE  PINK (-)  @ SWITCH or BECU (RH), (28-PIN PLUG) PIN 3, NOTE #7  SLIDING POWER DOOR  N/A  HORN  WHITE (-)  @ HORN SWITCH, under Steering Column Cover  TACH  WHITE (AC)  @ DATA LINK Connector, Pin 9, under Dash  WAIT TO START LIGHT  N/A  BRAKE  RED/BLACK (+)  @ BRAKE SWITCH, above Brake Pedal  FACTORY ALARM DISARM   WHITE (-) Requres Double Pulse, NOTE #4  @ POWER WINDOW SWITCH, (20-PIN PLUG) PIN 14  ANTI-THEFT  TOYOTA'S TRANSPONDER SYSTEM, See NOTE #1  EXTRA INFORMATION  NOTE #1: TOYOTA'S TRANSPONDER ANTI-THEFT SYSTEM, Requires part #791 Bypass Module and an extra ignition key for remote starting. Part # PK-ALL Bypass, NO EXTRA KEY REQUIRED!! To order 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 PSCM (Power Source Control Module) is located behind the GLOVE BOX. NOTE #6: the FRONT PARKING LIGHT wire is a BLUE (+) @ the DRIVERS side HEADLIGHT Assembly. NOTE #7: the BECU (RH) (Body Electronic Control Unit ( Right Hand) is part of the PASSENGER side FUSE BOX, located behind the GLOVE BOX. NOTE #8: the BECU (LH) (Body Electronic Control Unit ( Left Hand) is part of the DRIVERS side FUSE BOX, located under the Drivers side of the Dash.

Source: http://www.commandocaralarms.com/wiring/2006-2008/lexus/is250/1283.html

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