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

2014 Ford F-450 Super Duty Platinum, 4WDSECTION 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, SIGRTN and VPWR
  • mass airflow/intake air temperature (MAF/IAT) sensor (12B579)
  • powertrain control module (PCM) (12A650)
    Fig 1: Identifying Mass Airflow/Intake Air Temperature (MAF/IAT) Sensor Connector
    G07432169Courtesy of FORD MOTOR CO.
Pin Circuit
4 SIGRTN (Signal Return)
2 IAT (Intake Air Temperature)
3 VPWR (Vehicle Power)
Fig 2: Identifying Powertrain Control Module-B (PCM-B) Connector
G07432312Courtesy of FORD MOTOR CO.
Pin Circuit
60 SIGRTN (Signal Return)
47 IAT (Intake Air Temperature)
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.