PINPOINT TEST FA: Ambient Air Temperature (AAT) Sensor: Introduction
WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 2011 Mercury Milan, 2011 Mercury Mariner, 2011 Mercury Grand Marquis, 2011 Lincoln Town Car, and 2011 Lincoln Navigator. 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
- harness circuits: AAT and SIGRTN
- powertrain control module (PCM) (12A650)
Powertrain Control Module (PCM) Connector
For PCM connector views or reference values, refer to REFERENCE VALUES .
POWERTRAIN CONTROL MODULE (PCM) CONNECTOR PINS REFERENCE CHART
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Edge, Explorer, MKX | 190-PIN | B56 E29 |
SIGRTN AAT |
| F-150 3.5L | 198 PIN | B34 B51 |
SIGRTN AAT |
| All other vehicles | 190-PIN | B56 B17 |
SIGRTN AAT |