#
BAROMETRIC PRESSURE (BARO) SENSOR CONSTRUCTION/OPERATION

BHE014018210T02

• The BARO sensor is installed on the secondary air injection pump bracket.

1 | BARO sensor

• The piezoelectric element is enclosed in the sensor and the electric potential difference changes as the BARO drops. The output voltage lowers as the BARO drops.

1 | BARO sensor
2 | PCM
3 | CPU
4 | BARO sensor output voltage characteristic
5 | Output voltage (V)
6 | Low
7 | BARO
8 | High