Mercedes Benz  C 280 1998-2000
 PART   COLOR  LOCATION
 12 VOLT CONSTANT   RED (+)   @ IGNITION SWITCH HARNESS
 STARTER  PURPLE (+)  @ IGNITION SWITCH HARNESS
 STARTER 2  N/A  
 IGNITION 1  PINK/RED (+)  @ IGNITION SWITCH HARNESS
 IGNITION 2  PINK/YELLOW (+)  @ IGNITION SWITCH HARNESS
 IGNITION 3  BLACK/GREEN (+)  @ IGNITION SWITCH HARNESS
 ACCESSORY/HEATER BLOWER 1  N/A  
 ACCESSORY/HEATER BLOWER 2  N/A  
 KEYSENSE  N/A  
 PARKING LIGHTS ( - )  N/A  
 PARKING LIGHTS ( + )  GRAY (+) and GRAY/WHITE (+) Use both, See NOTE #1  @ HEADLIGHT SWITCH
 POWER LOCK  BLACK (-), TYPE B  @ DRIVERS DOOR MODULE, See NOTE #2
 POWER UNLOCK  BLUE (-), TYPE B  @ DRIVERS DOOR MODULE, See NOTE #2
 DOOR TRIGGER  See NOTE #3  @ EACH PIN SWITCH or THEFT MODULE, See NOTE #2
 DOMELIGHT SUPERVISION  TURNS ON with UNLOCK  
 TRUNK RELEASE  YELLOW (-)  @ TRUNK RELEASE SWITCH or THEFT MODULE, See NOTE #2
 SLIDING POWER DOOR  N/A  
 HORN  N/A  
 TACH  ANY wire NOT BLACK/YELLOW or BLACK/GREEN, (AC)  @ IGNITION COIL PACK
 WAIT TO START LIGHT  N/A  
 BRAKE  BLACK/RED (+)  @ BRAKE PEDAL SWITCH
 FACTORY ALARM DISARM   DISARMS withUNLOCK  
 ANTI-THEFT  TRANSPONDER ANTI-THEFT SYSTEM, REQUIRES 791 BYPASS MODULE AND EXTRA IGNITION KEY, See NOTE *4  @ IGNITION SWITCH TUMBLER
 EXTRA INFORMATION
 NOTE #1: this vehicle has 2 Parking Light wires, it will require 2 extra Relays part #775 to connect, See DIAGRAM. NOTE #2: these wires can also be found at the THEFT MODULE which is part of the Pneumatic system Equipment Control Module in the Trunk on the Passenger side. NOTE #3: the DRIVERS DOOR is a BROWN/GRAY (-) the PASSENGER DOOR is a BROWN/BLUE (-) the DRIVERS REAR DOOR is a BROWN/GREEN (-) and the PASSENGER REAR DOOR is a BROWN/WHITE (-) when connecting to an ALARM SYSTEM, use all 4 DOOR TRIGGER wires and DIODE ISOLATE, to connect, See DIAGRAM. NOTE #4: SECURITY BYPASS MODULE 791 will ONLY WORK with vehicles that have a SWITCHBLADE KEY, on vehicles with the SMART KEY a bypass is not available.