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BMW 3 SERIES
MODEL YEAR(S
3 SERIES 2005
KEY T-HARNESS IMMOBILIZER
N/A N/A BMW'S TRANSPONDER ANTI-THEFT System, See NOTE #7
PART COLOR LOCATION DIAGRAM
12 VOLT CONSTANT RED/BLUE (+) and RED/GREEN (+) @ IGNITION SWITCH HARNESS
STARTER BLACK/BLUE (+) @ IGNITION SWITCH HARNESS
STARTER 2 N/A
IGNITION 1 GREEN (+) @ IGNITION SWITCH HARNESS
IGNITION 2 PURPLE (+) @ IGNITION SWITCH HARNESS
IGNITION 3 N/A
ACCESSORY/HEATER BLOWER 1 N/A
ACCESSORY/HEATER BLOWER 2 N/A
KEYSENSE N/A
PARKING LIGHTS ( - ) N/A
PARKING LIGHTS ( + ) GRAY/PURPLE (+) Left and GRAY/YELLOW (+) Right, Use Both, See NOTE #1 @ LIGHT SWITCH Module, Pins 49 and 37, See NOTE #1 14301_3-SERIES-_DUAL PARKING LIGHT DIAGRAM.pdf
POWER LOCK YELLOW/RED (TYPE B), See NOTE #2 @ GENERAL MODULE, Middle Plug, Pin 7, See NOTE #3
POWER UNLOCK Same wire as LOCK, See NOTE #2
LOCK MOTOR WIRE WHITE (5-WIRE TYPE) @ GENERAL MODULE, Middle Plug, Pin 13, See NOTE #3
DOOR TRIGGER See NOTE #4 @ GENERAL MODULE, Middle Plug, See NOTE #3 26500_3-SERIES-_(-) NEGATIVE DOOR PIN ISOLATION CIRCUIT.pdf
DOMELIGHT SUPERVISION RED/BLUE (+) @ GENERAL MODULE, Middle Plug, Pin 18, See NOTE #3
TRUNK RELEASE GRAY/BROWN (-) @ GENERAL MODULE, Middle Plug, Pin 6, See NOTE #3
SLIDING POWER DOOR N/A
HORN PURPLE/BLUE (+) @ HORN RELAY behind GLOVEBOX
TACH BLACK (AC) @ OBD Plug under Drivers Dash, Pin 9
WAIT TO START LIGHT N/A
BRAKE BLUE/RED (+), See NOTE #5 @ SWITCH above BRAKE PEDAL
FACTORY ALARM DISARM WHITE/BLACK (-), See NOTE #6 @ GENERAL MODULE, Middle Plug, Pin 20, See NOTE #3
ANTI-THEFT BMW'S TRANSPONDER ANTI-THEFT SYSTEM, See NOTE #7 @ IGNITION SWITCH TUMBLER
NOTES
NOTE #1: The Parking Lights on this vehicle have (2) seperate circuits, to connect will require

(2) extra Relays Part #775, to connect See DIAGRAM. The LIGHT SWITCH Module is

part of the HEADLIGHT Switch.





NOTE #2: The LOCK and UNLOCK use the SAME wire, a (-) Negative or TYPE "B" pulse on this

wire, will alternate between the LOCK and UNLOCK on the vehicle.





NOTE #3: The GENERAL MODULE is located behind the GLOVEBOX on this vehicle.





NOTE #4: The DRIVERS DOOR TRIGGER is a BROWN/GRAY/YELLOW (-) at Pin 26, the

PASSENGER DOOR TRIGER is a BROWN/GRAY/YELLOW (-) at Pin 25. The DRIVERS

REAR DOOR TRIGGER is a BROWN/BLACK (-) at Pin 24 and the PASSENGER REAR

DOOR TRIGGER is a BROWN/BLACK (-) at Pin 23, when connecting to an ALARM

SYSTEM use all (4) FOUR wires and DIODE ISOLATE, See DIAGRAM.





NOTE #5: This wire will only TEST with the IGNITION "ON".





NOTE #6: TEST this wire while turning the Key in the Drivers Door Key Cylinder. This wire will

also UNLOCK the Doors. On some Models, this wire will require a Double Pulse to

UNLOCK the Doors.



NOTE #7: BMW'S TRANSPONDER ANTI-THEFT SYSTEM, Requires Bypass Module,

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



to order, go to the SECURITY BYPASS MODULE Page on this website
LINK 1 LINK TEXT 1 LINK 2 LINK TEXT 2