Pinpoint Test DO: Barometric Pressure (BARO) Sensor: Introduction
WARNING: This page does not describe the selected car, but rather 33 other vehicles, including the 2010 Mercury Mountaineer, 2010 Mercury Milan, 2010 Mercury Mariner, 2010 Mercury Grand Marquis, and 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
This pinpoint test is intended to diagnose the following:
- BARO sensor
- powertrain control module (PCM) (12A650)
BARO SENSOR TRANSFER FUNCTION CHART
| Volts | Pressure in kPa | Pressure in psi | Pressure in In-Hg |
|---|---|---|---|
| 0.3 | 7.6 | 1.1 | 2.2 |
| 0.5 | 12.7 | 1.84 | 3.8 |
| 2.64 | 60 | 8.7 | 17.7 |
| 4.54 | 115 | 16.68 | 34 |
| 4.75 | 120.3 | 17.45 | 35.5 |
| 4.8 | 121.6 | 17.66 | 35.9 |