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BMW 3 SERIES
MODEL YEAR(S
3 SERIES 1999-2004
KEY T-HARNESS IMMOBILIZER
N/A N/A BMW'S TRANSPONDER ANTI-THEFT SYSTEM, See NOTE #4
PART COLOR LOCATION DIAGRAM
12 VOLT CONSTANT RED/GREEN (+) and RED/BLUE (+) @ 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 ( + ) See NOTE #1 See DIAGRAM 14301_3-SERIES_BMW PARKING LIGHT FLASH.pdf
POWER LOCK BLUE/RED (TYPE B) @ GENERAL MODULE, 54-PIN PLUG, PIN 22, See NOTE #2
POWER UNLOCK WHITE/BLACK (TYPE B) @ GENERAL MODULE, 54-PIN PLUG PIN 20, See NOTE #2
LOCK MOTOR WIRE N/A
DOOR TRIGGER RED/BLUE (+) @ GENERAL MODULE 54-PIN PLUG, PIN 18, See NOTE #2
DOMELIGHT SUPERVISION COMES ON WITH UNLOCK
TRUNK RELEASE GRAY/GREEN (+) @ GENERAL MODULE 54-PIN PLUG, PIN 17, See NOTE #2
SLIDING POWER DOOR N/A
HORN PURPL/BLUE (+) See NOTE #3
TACH BLACK (AC) @ DIAGNSTIC CONNECTOR, PASSENGER SIDE OF ENGINE COMPARTMENT OR AT DATA LINK CONNECTOR UNDER DRIVERS DASH
WAIT TO START LIGHT N/A
BRAKE BROWN/WHITE (+) @ SWITCH ABOVE BRAKE PEDAL
FACTORY ALARM DISARM DISARMS WITH UNLOCK
ANTI-THEFT BMW'S TRANSPONDER ANTI-THEFT SYSTEM, See NOTE #4 @ IGNITION SWITCH TUMBLER
NOTES
NOTE #1: remove the LIGHT SWITCH Module from the dash and remove the cover, a ribbon

cable connects the switch to the module will be exposed. With the switch facing

towards you interrupt the 4th wire from the left with a relay See DIAGRAM.





NOTE #2: the GENERAL MODULE is a WHITE box located behind the GLOVE BOX. The 54-pin

plug is the CENTER PLUG.





NOTE #3: the HORN wire is located at the HORN RELAY above the GENERAL MODULE, it is a

GREEN RELAY





NOTE #4: 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.









SPECIAL NOTE #5: For the wiring on the 1999 3-series 2-door use the information on the 1998 vehicle listings.
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