PRINT
BMW X3
MODEL YEAR(S
X3 2004-2006
KEY T-HARNESS IMMOBILIZER
N/A N/A BMW'S TRANSPONDER ANTI-THEFT SYSTEM, See NOTE #1
PART COLOR LOCATION DIAGRAM
12 VOLT CONSTANT RED/BLUE (+) @ IGNITION SWITCH, 11-PIN PLUG, PIN 5
STARTER BLACK/BLUE (+) @ IGNITION SWITCH, 11-PIN PLUG, PIN 8
STARTER 2 N/A
IGNITION 1 GREEN (+) @ IGNITION SWITCH, 11-PIN PLUG, PIN 9
IGNITION 2 PURPLE (+), See NOTE #2 @ IGNITION SWITCH, 11-PIN PLUG, PIN 2
IGNITION 3 RED/BLACK (+) or RED/BLUE (+) @ IGNITION SWITCH, 11-PIN PLUG, PIN 10
ACCESSORY/HEATER BLOWER 1 N/A
ACCESSORY/HEATER BLOWER 2 N/A
KEYSENSE N/A
PARKING LIGHTS ( - ) N/A
PARKING LIGHTS ( + ) GRAY/PURLPE(+)(LEFT) and GRAY/YELLOW(+) (RIGHT) USE BOTH and ISOLATE with a RELAY @ LIGHT SWITCH MODULE, 54-PIN PLUG, PINS 30 and 29
POWER LOCK YELLOW/RED (TYPE B) @ CENTRAL LOCKING SWITCH or 54-PIN PLUG, PIN 7 @ GMCU Module, See NOTE #3
POWER UNLOCK Use LOCK wire
LOCK MOTOR WIRE N/A
DOOR TRIGGER GRAY/BROWN/YELLOW (-) 54-PIN PLUG, PIN 26 @ GMCU Module, See NOTE #3
DOMELIGHT SUPERVISION RED/BLUE (+) 54-PIN PLUG, PIN 18 @ GMCU Module, See NOTE #3
TRUNK RELEASE GRAY/RED(-) or GRAY/YELLOW (-) 54-PIN PLUG, PIN 44 @ GMCU Module, See NOTE #3
SLIDING POWER DOOR N/A
HORN PURPLE/BLUE (+) @ HORN RELAY, behind GLOVEBOX @ FUSEBOX
TACH BLACK (AC) @ DATA LINK CONNECTOR, 16-PIN PLUG, PIN 9
WAIT TO START LIGHT N/A
BRAKE BROWN/GRAY (+) (TEST with Ignition ON) @ BRAKE PEDAL SWITCH
FACTORY ALARM DISARM WHITE/BLACK (-) (test with key in door) 54-PIN PLUG, PIN 20 @ GMCU Module, See NOTE #3
ANTI-THEFT BMW'S TRANSPONDER ANTI-THEFT SYSTEM, See NOTE #1 @ IGNITION SWITCH TUMBLER
NOTES
NOTE #1: BMW'S TRANSPONDER ANTI-THEFT SYSTEM, Requires Bypass Module,

Part # 791 Bypass and an extra ignition key for REMOTE STARTING

Operation.



To order go to the SECURITY BYPASS MODULE Page on the website.







NOTE #2: This wire MUST Power up before Ignition #1, use the (-) Ignition #3 output

and a relay





NOTE #3: The GMCU Module is located behind the GLOVEBOX.
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