Pinpoint Tests FA: Ambient Air Temperature (AAT) Sensor: Introduction
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2019 Ford Transit-350 HD, 2019 Ford Transit-350, 2019 Ford Transit-250, 2019 Ford Transit-150, and 2019 Ford F-550 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
This pinpoint test is intended to diagnose the following:
- AAT sensor (12A647)
- harness circuits: AAT and SIGRTN
- PCM (12A650)
Harness Side
| Circuit | Pin |
|---|---|
| AAT (Ambient Air Temperature) | 1 |
| SIGRTN (Signal Return) | 2 |
Harness Side
| Circuit | Pin |
|---|---|
| AAT (Ambient Air Temperature) | 3 |
| SIGRTN (Signal Return) | 44 |
Harness Side
| Circuit | Pin |