Circuit Description

Barometric (BARO) pressure sensor and circuitry are located inside of PCM. PCM uses BARO pressure information in order to compensate for altitude changes. Barometric pressure sensor reading is displayed on scan tool when ignition is on and engine is not running.

DTC will set when input range check indicates barometric pressure less than 38 kPa or greater than 113 kPa for greater than 5 seconds.