Diagnostic Aids
WARNING: This page is about a different variant/trim than selected.
Perform this test when directed by QUICK TEST. This system test is intended to diagnose:
- Barometric Pressure (BARO) Sensor
- Wiring Harness Circuits (BARO SIG, SIG RTN & VREF)
- Powertrain Control Module (PCM)
VREF voltage should be 4-6 volts. BARO PID reading is in frequency/volts.
BARO SENSOR SPECIFICATIONS
| In. Hg (kPa) | Frequency (Hz) | Altitude Above Sea Level (Feet) |
|---|---|---|
| 3.5 (11.8) | 89.3 | N/A |
| 5 (16.9) | 92.8 | N/A |
| 10 (33.8) | 104.6 | N/A |
| 15 (50.7) | 117.0 | 14000 |
| 20 (67.5) | 129.6 | 10000 |
| 21 (70.9) | 132.5 | 9000 |
| 22 (74.3) | 135.4 | 8000 |
| 23 (77.7) | 138.3 | 7000 |
| 24 (81.1) | 141.1 | 6000 |
| 25 (84.4) | 144.0 | 5000 |
| 26 (87.8) | 146.9 | 4000 |
| 27 (91.2) | 149.8 | 3000 |
| 28 (94.6) | 152.8 | 2000 |
| 29 (97.9) | 155.8 | 1000 |