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MERCEDES BENZ ML CLASS
MODEL YEAR(S
ML CLASS 2003-2005
KEY T-HARNESS IMMOBILIZER
N/A N/A MERCEDES BENZ Transponder anti-Theft System, See NOTE #1
PART COLOR LOCATION DIAGRAM
12 VOLT CONSTANT RED (+) (Not Fused) @ IGNITION SWITCH
STARTER WHITE (+) @ IGNITION SWITCH
STARTER 2 N/A
IGNITION 1 PINK (+) @ IGNITION SWITCH
IGNITION 2 N/A
IGNITION 3 N/A
ACCESSORY/HEATER BLOWER 1 GRAY (+) @ IGNITION SWITCH
ACCESSORY/HEATER BLOWER 2 N/A
KEYSENSE ORANGE (+) (Needs to be POWERED before IGNITION) @ IGNITION SWITCH
PARKING LIGHTS ( - ) N/A
PARKING LIGHTS ( + ) BLUE(+) (Left) and GREEN(+) (Right) See NOTE #2 @ HEADLIGHT Switch, 20-Pin Plug, Pins 6 and 4
POWER LOCK See NOTE #3 @ CENTER CONSOLE Switch, 28-Pin Plug, Pin 25
POWER UNLOCK See NOTE #3
LOCK MOTOR WIRE N/A
DOOR TRIGGER BLUE (-) @ AA Module, BLUE 24-Pin Plug(C3), Pin A8, See NOTE #4
DOMELIGHT SUPERVISION See NOTE #5 @ AA Module, BLACK 6-Pin Plug(C5), Pins 1, 4, 2, and 5, See NOTE #4
TRUNK RELEASE Use Release Motor wires!
SLIDING POWER DOOR N/A
HORN ORANGE (-) @ HORN Switch, Pin 9
TACH GRAY/STRIPE (AC) @ ANY FUEL-INJECTOR, 2-Pin Plug, Pin 2
WAIT TO START LIGHT N/A
BRAKE ORANGE(+) TEST with Ignition On!! @ UNDERHOOD FUSE BOX, Plug(P/C), Pin 2
FACTORY ALARM DISARM FACTORY REMOTE ONLY!
ANTI-THEFT See NOTE #1
NOTES
NOTE #1: To REMOTE START this vehicles will Require and Extra Ignition Key and the Bypass

Module Part # TBXKEY to order go to the Interface Bypass Module page on this

website



NOTE #2: To connect Parking Lights will require (2) 775 Relays to isolate circuits.





NOTE #3: The LOCK/UNLOCK wire is a PINK OR WHITE and requires a (-) Negative through a

Resistor to Lock and a straight (-) Negative to Unlock, test Lock wire for resistance

value.





NOTE #4: The AA Module is attached to the Bottom of the Underhood Fuse Box.





NOTE #5: The Left Front wire is a GRAY(-) or GREEN(-), the Right Front is a ORANGE (-), the

Left Rear is a WHITE(-) and the Right Rear is a WHITE(-) Isolate with (4) 775 Relays
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