Pinpoint Tests F: Intake Air Temperature (IAT) Sensor: Introduction

NOTE: Regeneration may occur during normal operation. During regeneration, diagnostic procedures may display biased values. If a regeneration occurs during diagnostic procedures, allow the process to complete before continuing diagnostics.

This pinpoint test is intended to diagnose the following:

harness circuits: IAT, and SIGRTN
mass air flow/intake air temperature (MAF/IAT) sensor (12B579)
powertrain control module (PCM) (12A650)

Fig 1: Identifying Mass Airflow/Intake Air Temperature (MAF/IAT) Sensor Connector
Courtesy of FORD MOTOR CO.

Fig 2: Identifying Powertrain Control Module-B (PCM-B) Connector
Courtesy of FORD MOTOR CO.