ML 63 AMG (164.177) V8-6.3L (156.980) (2007)
Relay Box: Description and Operation
GF54.21-P-7010GZ Front Sam Control Unit, Component Description
GF54.21-P-7010GZ Front SAM control unit, component description
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164 up to model year 8
Component Identification
Location
The front SAM control unit is located in the right underfloor assembly below the front seat.
General
For data exchange purposes the front SAM control unit is connected to the Controller Area Network bus class B (interior) (CAN-B).
Task
The front SAM control unit reads in the following signals, sensors and switches, and actuates the function and switch and controls illumination and then
actuates the following relay and consumers by way of semiconductor switches.
Control
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Front exterior lights
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Footwell lights
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Washer nozzle heater
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Front wiper system
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Windshield washer fluid pump
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Headlamp cleaning system (for headlamp cleaning system, code 600)
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Heated windshield washer system (for heated windshield washer system, code 875)
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Heated front seats via a timer control
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Power windows for rear side windows
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Left rear door central locking system
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Additional battery charging process (G1/7)
Reading in and outputting the following signals:
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Circuit 31b
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Circuit 61 (engine 113 only)
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Circuit 58d
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Air suspension wake-up signal