My MB S350 2006 W220 SRS light has been on for a couple of weeks and passenger side front seat adjustment did not work. Took the car to the dealer and got a diagnosis that the seat module and the child seat/passenger sensor are fried. $2300 to fix them both. Decided to diy. Found out that fuse #66 was missing, put a new one in and the seat adjustment works. SRS still on. Now I have my s350 2006 W220 Passenger seat on my work table. I would like to know about the resistance for the front seat occupany sensor before I pull the upholstery off. Everything looks nice and clean and if there is a broken wire or connector I guess I should not get any reading on the Ohm meter?
Red Wire emulator (B+) – to Red Wire (connector)
Black Wire emulator (Ground) – Brown Wire (connector)
Yellow Wire emulator (Line) -White Wire (connector)
You have to cut the wire from the Child Sensor Mat and splice them to the emulator.
Then re-insert the connector under the seat in the same location. you can tape the emulator to a location under the seat that will not get disturbed when the seat is moved back and forth.
You will need to have the code reset.