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Home >> Mercedes Benz >> 2012 >> S550 Base >> Repair and Diagnosis >> Restraints >> Seat Belts >> Seats, Bunks, Restraint Systems - 221 Chassis - 2 Of 4 >> Basic Knowledge >> Seat belt buckle switch, component description - GF91.60-P-4045SX

Seat belt buckle switch, component description - GF91.60-P-4045SX

MODEL 216.3, 221.0/1 up to Model Year 08 

Shown on model 221.0 

Fig 1: Identifying Seat Belt Buckle Switch Component - Shown On Model 221.0
G10113400Courtesy of MERCEDES-BENZ USA

Model 221 with CODE (223) Rear bench seat with electrically adjustable outer seats with PRE-SAFE positioning function for outer seats and outer head restraints 

Fig 2: Identifying Left And Right Rear Seat Belt Buckle Switch
G10113401Courtesy of MERCEDES-BENZ USA

Location 

The seat belt buckle switches are integrated in the relevant seat belt buckle.

Task 

The seat belt buckle switches monitor the insertion of the belt latch into the seat belt buckles.

The driver and front passenger seat belt buckle switches are directly read in by the restraint system control unit (N2/7).

The rear seat belt buckle switches are read in by the rear SAM control unit with fuse and relay module (N10/2) and transmitted to the restraint system control unit via the central gateway control unit (N93).