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Pinpoint Tests J: Mass Airflow (MAF) Sensor: Introduction

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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:

Fig 1: Mass Airflow/Intake Air Temperature (MAF/IAT) Sensor Connector
G13533736Courtesy of FORD MOTOR CO.

Harness Side

Circuit Pin
VREF (Reference Voltage) 2
SIGRTN (Signal Return) 3
SIGNAL (MAF/IAT SENT Signal) 1
Fig 2: Powertrain Control Module-B (PCM-B) Connector
G13533737Courtesy of FORD MOTOR CO.

Harness Side

Circuit Pin
SIGNAL (MAF/IAT SENT Signal) 10
SIGRTN (Signal Return) 11
Fig 3: Powertrain Control Module-T (PCM-T) Connector
G13533738Courtesy of FORD MOTOR CO.

Harness Side

Circuit Pin
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