Rear light unit: one housing, different functions

In a few sentences

In brief

The check must consider the individual modes.

Useful to know

The rear light unit can combine several separate light functions. HELLA offers various implementations with specific compatibility, so the common housing does not fully describe the internal system. [1]

In case of a problem, indicate which function is missing and under what action, instead of just the "right stop". Distinguish the constant glow, the signal when braking and the other modes of the particular block. When changing, check the side, connector and technology as well. A module may look right on the outside, but require different controls.

Sources

For further detail and to check the information:

[1] HELLA — rear lamps ↗