โข The ECM supplies a 5 volt reference signal which the Baro sensor uses to produce a linear analog
voltage signal that indicates pressure.
โข The primary function of the Baro sensor is to provide altitude information so that the ECM can adjust timing, fuel
quantity, glow plug on time, and turbocharger control.
โข The Baro sensor is located inside the ECM. If the sensor fails, the ECM must be replaced.
