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Home >> BMW >> 2003 >> X5 46i >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Driver Information - Overview - X5 >> Driver Information >> Analog Input Signals

Analog Input Signals

BATTERY VOLTAGE  - Battery voltage is monitored by the cluster and a fault is stored if the voltage exceeds 16 volts

FUEL TANK LEVEL  - Two lever action sensors are wired in parallel to the cluster. The two varying voltage signals are processed by the cluster for fuel gauge and low fuel warning display.

Fig 1: Identifying Analog Input Signals Operation Diagram
G03388481Courtesy of BMW OF NORTH AMERICA, INC.

COOLANT TEMPERATURE  - A NTC sensor is used to measure coolant temperature. the cluster uses this input for temperature gauge display.

OUTSIDE TEMPERATURE SENSOR  - A NTC sensor is used to measure the ambient temperature. The signal is processed by the cluster and passed out over the K Bus to modules requiring this input for processing.