SAM control unit
Electrical system
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Introduction of smart fortwo electric drive (3rd Generation) • Model Series 451
Fuse assignment
Fuse Designation Amps Color
35 EPS control unit (power steering) 30 A Green
R1 Mirror heater 7.5 A Brown
R2 Brake lights (USA only) 7.5 A Brown
R4 TPM (USA only) 7.5 A Brown
R5 Engine components: on-board charger, electric refrigerant
compressor, coolant pump (power electronics/electric drive
motor/on-board charger), high-voltage PTC heater
10 A Red
R6 Radio systems, subwoofer (standard sound), soft top 15 A Blue
R7 Interior lights 5 A Light
brown/
beige
R8 Premium sound amplifier 20 A Yellow
R9 Heated seats control unit 25 A White