Pinpoint Tests Fa: Ambient Air Temperature (AAT) Sensor: Introduction

This pinpoint test is intended to diagnose the following:

Fig 1: Ambient Air Temperature (AAT) Sensor Connector

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
F-Series Super Duty	A	2 1	SIGRTN AAT
Transit	B	2 1	SIGRTN AAT
All other vehicles	C	2 1	SIGRTN AAT

Fig 2: Powertrain Control Module-B (PCM-B) Connector

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
F-650/F-750	A	3	AAT
F-Series Super Duty	A	44 3	SIGRTN AAT

Fig 3: Powertrain Control Module-T (PCM-T) Connector

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
F-650/F-750	A	43	SIGRTN
Transit	B	21 18	AAT SIGRTN