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Vehicle Wiring Details for your
2008- Saturn Astra 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 2008- Saturn Astra . 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   RED (+)   IN WHITE 2-PIN PLUG, IN REAR FUSEBOX, ON LEFT SIDE OF CARGO AREA
 STARTER  BLACK/RED (+)  IN 47-PIN PLUG, @ UNDERHOOD FUSEBOX
 STARTER 2  N/A  
 IGNITION 1  BLACK (+)  IN 25 PIN PLUG @ THE STEERING COLUMN CONTROL MODULE IN THE STEERING COLUMN
 IGNITION 2  N/A  
 IGNITION 3  N/A  
 ACCESSORY/HEATER BLOWER 1  BROWN/GREEN (+)  IN 25 PIN PLUG @ THE STEERING COLUMN MODULE IN THE STEERING COLUMN
 ACCESSORY/HEATER BLOWER 2  N/A  
 KEYSENSE  N/A  
 PARKING LIGHTS ( - )  GRAY/GREEN (-) (REQUIRES #775 RELAY)  @ HEADLIGHT SWITCH
 PARKING LIGHTS ( + )  N/A  
 POWER LOCK  BROWN/WHITE(-) SEE NOTE #2  @ HARNESS, HIGH IN DRIVERS KICK PANEL
 POWER UNLOCK  SAME AS LOCK WIRE  @ HARNESS, HIGH IN DRIVERS KICK PANEL
 DOOR TRIGGER  WHITE/GRAY (-)  @ BLUE PLUG IN REAR FUSEBOX
 DOMELIGHT SUPERVISION  GRAY (-) (REQUIRES #775 RELAY)  @ BLUE PLUG IN REAR FUSEBOX
 TRUNK RELEASE  BLUE/YELLOW (-) (REQUIRES #775 RELAY)  @ GREEN PLUG IN REAR FUSEBOX
 SLIDING POWER DOOR  N/A  
 HORN  BROWN/WHITE (+)  IN 62-PIN PLUG @ UNDERHOOD FUSE BOX
 TACH  Any wire NOT RED/BLUE (AC)  @ FUEL INJECTOR
 WAIT TO START LIGHT  N/A  
 BRAKE  BROWN/GRAY (+)  @ SWITCH ABOVE BRAKE PEDAL
 FACTORY ALARM DISARM   DISARMS WITH FACTORY REMOTE ONLY!!  
 ANTI-THEFT  SATURN'S TRANSPONDER ANTI-THEFT SYSTEM, See NOTE #1  TRANSPONDER @ IGNITION SWITCH TUMBLER
 EXTRA INFORMATION
 NOTE #1: This vehicle is equipped with SATURN'S TRANSPONDER ANTI-THEFT SYSTEM and will Require a Bypass Module for Remote Starting: part # 791 BYPASS MODULE (Requires a spare Ignition key that starts the vehicle for Operation) To order this part go to the SECURITY BYPASS MODULE Page on this website. NOTE #2: THIS VEHICLE USES A SINGLE WIRE DOOR LOCKING SYSTEM THAT REQUIRES EXTRA PARTS. SEE DIAGRAM.
 
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