A66-03086-000 | Genuine Freightliner® M2 BHM Full Bulkhead Module

Freightliner M2 Business Class

Freightliner 108SD

Freightliner 114SD

Connect wiring harnesses — provides organized electrical connections through the vehicle bulkhead.

Distribute power — routes battery/ignition power to various vehicle systems.

Control electrical functions — depending on the vehicle, it may contain electronics that control or communicate with lights, sensors, relays, etc.

Protect circuits — incorporates fuses, relays, or electronic protection against electrical faults.

Communicate with other modules — may communicate over the vehicle's CAN network with modules such as the engine, transmission, body, or instrument cluster.

Simplify manufacturing and servicing — consolidates many connections into one module rather than having numerous individual wires passing through

Multiple electrical systems stop working or work intermittently.

Headlights, indicators, brake lights, or other exterior lights behave strangely.

Dashboard warning lights appear unexpectedly.

Windows, locks, wipers, or other body functions stop working or operate intermittently.

Vehicle won't start or has intermittent starting problems, if the BHM is involved in the relevant circuits.

Communication faults between vehicle control modules, sometimes producing multiple diagnostic trouble codes (DTCs).

Fuses or relays repeatedly blow if there's an associated wiring or internal electrical fault.

Problems become worse with moisture, vibration, or temperature changes.

A diagnostic scan may show lost communication with the BHM or several modules simultaneously