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MERCEDES BENZ 300 D
MODEL YEAR(S
300 D 1990-1992
KEY T-HARNESS IMMOBILIZER
N/A N/A N/A
PART COLOR LOCATION DIAGRAM
12 VOLT CONSTANT RED (+) IGNITION SWITCH HARNESS
STARTER PURPLE/WHITE (+) IGNITION SWITCH HARNESS
STARTER 2 N/A
IGNITION 1 BLACK/RED (+) IGNITION SWITCH HARNESS
IGNITION 2 N/A
IGNITION 3 N/A
ACCESSORY/HEATER BLOWER 1 PINK/GREEN (+) IGNITION SWITCH HARNESS
ACCESSORY/HEATER BLOWER 2 N/A
KEYSENSE N/A
PARKING LIGHTS ( - ) N/A
PARKING LIGHTS ( + ) GRAY/WHITE (+) and GRAY (+) Use both, See NOTE *1 @ HEADLIGHT SWITCH 14301_300-D_DUAL PARKING LIGHT DIAGRAM.pdf
POWER LOCK BLUE or GREEN, See NOTE *2 See DIAGRAM 28034_300D_VACUUM LOCKS.pdf
POWER UNLOCK Same wire, See NOTE *2
LOCK MOTOR WIRE N/A
DOOR TRIGGER BROWN/GRAY (-) @ PASSENGERS PIN SWITCHES
DOMELIGHT SUPERVISION USE DOOR TRIGGER
TRUNK RELEASE N/A
SLIDING POWER DOOR N/A
HORN N/A
TACH BLACK @ DIAGNOSTIC CONNECTOR or IGNITION COIL
WAIT TO START LIGHT N/A
BRAKE BLACK/RED (+) @ SWITCH ABOVE BRAKE PEDAL
FACTORY ALARM DISARM GREEN/BLUE (-) @ THEFT MODULE
ANTI-THEFT N/A
NOTES
NOTE *1 this vehicle has 2 Parking Light wires that will require 2 extra Relays part #775, to connect, See DIAGRAM.





NOTE *2 this vehicle has a Vacuum Door Locking System that will requires 2 extra relays part #775, the wire is a the Drivers kick panel or at the pump under the rear seat, to connect, See DIAGRAM.







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