What Causes the Gear Shift Light in BMW 5 Series to Not Illuminate?

[MacLillian]

BMW 5 Series gear shift light not illuminating may be due to a gear position light malfunction or a short circuit in the gear position switch. Gear Position Light Malfunction: When water enters the gear position area and contacts the gear module, the module may fail to function properly. The BMW gear shift switch consists of an electronic control module and a shift lever. The electronic control module integrates sensors that detect the shift lever position and the shift lock mechanism. Gear Position Switch Fault: There might be a short circuit in the gear position switch, requiring replacement of the shorted wiring. Alternatively, it could be a bus system fault or a switch signal fault, which can also cause the indicator light not to illuminate or to light up abnormally. These issues are more complex and require a professional technician to diagnose the exact fault location using diagnostic equipment.