Pinpoint Tests FA: Ambient Air Temperature (AAT) Sensor: Introduction
This pinpoint test is intended to diagnose the following:
- AAT sensor
- harness circuits: AAT and SIGRTN
Ambient Air Temperature (AAT) Sensor Expected Values
| Temperature | AAT Sensor Values | |
|---|---|---|
| °C | °F | Resistance (K ohms) |
| -1.1 to 4.4 | 30 to 40 | 27.49 to 33.47 |
| 4.4 to 10 | 40 to 50 | 22.06 to 28.86 |
| 10 to 15.6 | 50 to 60 | 16.63 to 23.10 |
| 15.6 to 21.1 | 60 to 70 | 11.74 to 17.32 |
| 21.1 to 26.7 | 70 to 80 | 9.34 to 12.14 |
| 26.7 to 32.2 | 80 to 90 | 8.49 to 9.62 |
| 32.2 to 37.8 | 90 to 100 | 5.93 to 7.87 |
| 37.8 to 43.3 | 100 to 110 | 4.78 to 6.11 |
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| F-150 | A | 2 1 |
SIGRTN AAT |
| F-Series Super Duty | B | 3 1 |
SIGRTN AAT |
| Ranger 2.5L | C | 1 2 |
SIGRTN AAT |
| Transit GTDI 3.5L | D | 2 1 |
SIGRTN AAT |
| All other vehicles | C | 2 1 |
SIGRTN AAT |
Powertrain Control Module (PCM) Connector
For PCM connector views or reference values, refer to REFERENCE VALUES .
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Aviator, Edge 2.7L, Explorer 3.0L, Explorer 3.3L, F-Series Super Duty, Motorhome/Stripped Chassis/Step Van, Mustang 5.0L, Mustang 5.2L Supercharged, Nautilus 2.7L, Transit | 306 PIN | B26 B84 |
SIGRTN AAT |
| Continental, EcoSport 1.0L Automatic Transmission, EcoSport 2.0L, Ford GT | 198 PIN | B18 B51 |
SIGRTN AAT |
| Corsair 2.5L, Escape/Kuga 2.5L, Mustang TiVCT 5.2L | 198 PIN | B51 B47 |
SIGRTN AAT |
| EcoSport 1.0L Manual Transmission | 198 PIN | B34 B51 |
SIGRTN AAT |
| EcoSport 1.5L Automatic Transmission, KA 1.5L Automatic Transmission | 198 PIN | B15 B47 |
SIGRTN AAT |
| EcoSport 1.5L Manual Transmission, KA 1.2L, KA 1.5L Manual Transmission | 112 PIN | B8 B20 |
SIGRTN AAT |
| Expedition High Output, Navigator High Output | 198 PIN | B30 B51 |
SIGRTN AAT |
| Expedition Base, Navigator Base | 306 PIN | B26 B24 |
SIGRTN AAT |
| F-150 | 306 PIN | B40 B36 |
SIGRTN AAT |
| F-650/F-750 | 306 PIN | B36 | AAT |
| KA 1.0L | 128 PIN | T20 T2 |
SIGRTN AAT |
| Ranger 2.5L | 128 PIN | B33 B45 |
SIGRTN AAT |
| Transit Connect 2.5L | 198 PIN | B33 B47 |
SIGRTN AAT |
| All other vehicles | 198 PIN | B36 B31 |
SIGRTN AAT |