Pinpoint Test MB: Fuel Rail Pressure (FRP) Sensor: Introduction

WARNING: This page is about a different variant/trim than selected.

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: FRP, VREF and SIGRTN
FRP sensor (9F838)
PCM (12A650)

Fig 1: Identifying Fuel Rail Pressure (FRP) Sensor Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
2	FRP (Fuel Rail Pressure)
3	SIGRTN (Signal Return)
1	VREF (Reference Voltage)

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

Courtesy of FORD MOTOR CO.

Pin	Circuit
15	FRP (Fuel Rail Pressure)