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Home >> Mercedes Benz >> 2025 >> eSprinter Base, _NA_ >> Repair and Diagnosis >> External Pages >> Different car >> Section 2382 (Instrument Cluster Illumination & Instrument Panel Illumination -- F250-F550 Super Duty) >> Diagnostic Tests >> Instrument Cluster And Panel Illumination >> Principles of Operation >> Fixed Backlighting

Fixed Backlighting

WARNING: This page is about a different car, the 2009 Ford Pickup, 2009 Ford F550 Super Duty, 2009 Ford F450 Super Duty, and 2009 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

When the accessory delay relay is energized, switched voltage is supplied to the door lock and window control switches. The memory set switch receives voltage from the drivers seat module (DSM). The non dimmable illumination components are: