Diagnostic Aids
WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
Use the Temperature vs. Resistance table to evaluate the possibility of a shifted IAT sensor. See TEMPERATURE VS. RESISTANCE table. A shifted sensor could result in a DTC P0110.
An intermittent malfunction may be caused by a fault in IAT sensor electrical circuit. Check wiring harness and components for an intermittent condition. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES - 1.8L VIBE article. If a DTC P0110 cannot be duplicated, information included in freeze frame data can be useful in determining vehicle operating conditions when DTC was first set.
TEMPERATURE VS. RESISTANCE
| °F | °C | Resistance - Ohms |
|---|---|---|
| 176 | 80 | 315 |
| 158 | 70 | 435 |
| 140 | 60 | 480 |
| 122 | 50 | 810 |
| 113 | 45 | 940 |
| 104 | 40 | 1150 |
| 95 | 35 | 1360 |
| 86 | 30 | 1600 |
| 77 | 25 | 2000 |
| 68 | 20 | 2400 |
| 59 | 15 | 3000 |
| 50 | 10 | 3600 |
| 41 | 5 | 4600 |
| 32 | 0 | 5700 |
| 23 | -5 | 7400 |
| 14 | -10 | 9800 |
| 5 | -15 | 12700 |
| -4 | -20 | 16000 |