Pinpoint Tests MC: Fuel Temperature 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:

FRT sensor (9F951)
fuel pressure and temperature sensor
harness circuits: FRT and SIGRTN
PCM (12A650)

Fig 1: Fuel Pressure And Temperature Sensor Connector

Courtesy of FORD MOTOR CO.

Harness Side

Circuit	Pin
FRT (Fuel Rail Temperature)	5
SIGRTN (Signal Return)	4

Fig 2: Powertrain Control Module-E (PCM-E) Connector

Courtesy of FORD MOTOR CO.

Harness Side

Circuit	Pin
FRT (Fuel Rail Temperature)	35
SIGRTN (Signal Return)	4