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Barometric Pressure (BARO) Sensor Inspection: Notes

WARNING: This page is about a different car, the 2005 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • Perform the following inspection only when directed.
  • The following vacuum values are indicated by relative pressure from the BARO sensor.
  1. Connect the WDS or equivalent to the DLC-2.
  2. Turn the ignition switch to ON.
  3. Select BARO on the WDS or equivalent.
  4. 4. Verify that the BARO PID (pressure) and barometric pressure are practically equal.
    • If not as verified, perform the "Circuit Open/Short Inspection".
      • If there is no open or short circuit, replace the BARO sensor.
    • If as verified, go to next step.
  5. Apply vacuum of -25.0 kPa {-187 mmHg, -7.38 inHg}  to the BARO sensor, and verify that the BARO variation from that of Step  4 is approx. 25.0 kPa {187 mmHg, 7.38 inHg}. 
    • If not as verified, perform the "Circuit Open/Short inspection".
      • If there is no open or short circuit, replace the BARO sensor.
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