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Home >> BMW >> 2000 >> M Roadster >> Repair and Diagnosis >> External Pages >> Different car >> Section 184 (Lights - Service Information) >> Light >> E46 - Adaptive Headlights (AHL), Diagnostics >> Diagnostics On Bi-Xenon Headlights

Diagnostics On Bi-Xenon Headlights

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The light switch cluster (LSZ) checks whether or not current flows to the D2-S bulb of the bi-xenon headlights when the dipped beam headlights are switched on. If no current flows, the LSZ detects a fault and stores a fault message.