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MERCEDES BENZ S CLASS
MODEL YEAR(S
S CLASS 2000-2002
KEY T-HARNESS IMMOBILIZER
N/A N/A MERCEDES TRANSPONDER ANTI-THEFT SYSTEM, Requires 791 Bypass Module and extra Ignition Key
PART COLOR LOCATION DIAGRAM
12 VOLT CONSTANT RED (+) IGNITION SWITCH HARNESS
STARTER PURPLE/YELLOW (+) IGNITION SWITCH HARNESS
STARTER 2 N/A
IGNITION 1 PINK/RED (+) IGNITION SWITCH HARNESS
IGNITION 2 PINK/GREEN (+) 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 ( + ) N/A
POWER LOCK RED/BLUE (1-Wire Door Lock System) See NOTE *1 DRIVERS DOOR CONTROL MODULE
POWER UNLOCK Same wire
LOCK MOTOR WIRE N/A
DOOR TRIGGER See NOTE *2 @ REAR SAM, Control Module, See NOTE *3 14301_S-CLASS_(-) NEGATIVE DOOR PIN ISOLATION CIRCUIT.pdf
DOMELIGHT SUPERVISION GRAY/RED (-) @ REAR SAM, Control Module, See NOTE *3
TRUNK RELEASE BROWN (-) @ TRUNK RELEASE SWITCH
SLIDING POWER DOOR N/A
HORN BLACK/YELLOW or BLACK/YELLOW/RED (+) @ HORN
TACH ANY wire NOT BLACK/YELLOW or BLACK/GREEN @ any IGNITION COIL
WAIT TO START LIGHT N/A
BRAKE BLACK/BLUE/WHITE (+) @ SWITCH ABOVE BRAKE PEDAL
FACTORY ALARM DISARM DISARMS WITH UNLOCK
ANTI-THEFT TRANSPONDER ANTI-THEFT SYSTEM, REQUIRES 791 BYPASS MODULE AND EXTRA IGNITION KEY, See NOTE *4 TRANSPONDER @ IGNITION SWITCH TUMBLER
NOTES
NOTE *1 this vehicle uses a 1-Wire Door Locking System, the Lock is a (-) Negative and the Unlock is a (-) Negative thru a Resistor, you will need to meter this wire while turning the key in the Drivers door Key cylinder to get the Resistor value.





NOTE *2 the DRIVERS DOOR is a GREY/RED (-) the PASSENGER DOOR is a GREY/BLACK (-) the DRIVERS REAR DOOR is a GREY/PURPLE (-) and the PASSENGER REAR DOOR is a GREY/BLACK (-) when connecting to an Alarm System use all 4 wires and diode isolate See DIAGRAM.





NOTE *3 the SAM (Signal Acquisition and Actuation Module) is attached to the REAR FUSE/RELAY Module in the Connector 3.





NOTE *4 the TRANSPONDER SYSTEM works only with vehicles that use the SWITCHBLADE KEY. If vehicle is equipped with the SMART KEY the transponder bypass will not work.
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