Pinpoint Test FA: Ambient Air Temperature (AAT) Sensor: Introduction: Notes

This pinpoint test is intended to diagnose the following:

AAT sensor
harness circuits: AAT and SIGRTN
PCM (12A650)

Fig 1: Identifying Ambient Air Temperature (AAT) Sensor Connector
Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
Transit	A	2 1	SIGRTN AAT
All other vehicles	B	2 1	SIGRTN AAT

Fig 2: Identifying Right Exterior Rear View Mirror Assembly Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
10	SIGRTN (Signal Return)
9	AAT (Ambient Air Temperature)

Fig 3: Identifying Instrument Panel Cluster (IPC) Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
19	SIGRTN (Signal Return)
20	AAT (Ambient Air Temperature)