Base module Location/Function/Design/Operation - GF54.21-P-4013L: Notes

MODEL 124 with ENGINE 119.974 /975

MODEL 129 with ENGINE 104.943 /991, 119.972 /982, 120.981 /983

MODEL 140 with ENGINE 104.944 /990 /994, 119.970 /971 /980 /981, 120.980 /982

15.03.07 The document has been updated to this date and will no longer be subject to revision.

Fig 1: Identifying Base Module

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Base module location	Model 124	GF54.21-P-4013-01C
	Model 129	GF54.21-P-4013-01D
	Model 140	GF54.21-P-4013-01L
Base module - function	To supply electrical power to ECUs and electrical components To secure circuit for ECUs and electrical components
Base module - design	Plastic housing with fuses and relays in varying configurations according to vehicle model
Base module - operation		GF54.21-P-4013-02L