PINPOINT TEST F: Intake Air Temperature (IAT) Sensor: Introduction

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2007 Ford RV Cutaway, 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Econoline. However, it is still accessible from the selected car via links, so may be relevant.

This pinpoint test is intended to diagnose the following:

Harness circuits: IAT, and SIGRTN
IAT sensor
Powertrain control module (PCM) (12A650)

Fig 1: Mass Air Flow/Intake Air Temperature (MAF/IAT) Sensor Connector - A

Courtesy of FORD MOTOR CO.

Fig 2: Mass Air Flow/Intake Air Temperature (MAF/IAT) Sensor Connector - B

Courtesy of FORD MOTOR CO.

Fig 3: Mass Air Flow/Intake Air Temperature (MAF/IAT) Sensor Connector - C

Vehicle	Connector	Pin	Circuit
E-Series	A	2 1	SIGRTN IAT
F-Super Duty vehicles with an integrated MAF/IAT sensor	B	1 6	SIGRTN IAT
F-Super Duty vehicles with a stand alone IAT sensor	C	1 2	SIGRTN IAT

Fig 4: Powertrain Control Module Connector Terminals

Pin	Circuit
B20, B33, E25	SIGRTN (Signal Return)
B43	IAT (Intake Air Temperature)