Pinpoint Tests RF: Reductant Pressure 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:

reductant pressure sensor
harness circuits: RDP, VREF, and SIGRTN
reductant dosage control module (5H298)
PCM (12A650)

Fig 1: Reductant Pump Assembly Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
3	SIGRTN (Signal Return)
5	VREF (Reference Voltage)
4	RDP (Reductant Pressure)

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

Courtesy of FORD MOTOR CO.

Pin	Circuit
55	SIGRTN (Signal Return)
68	VREF (Reference Voltage)
40	RDP (Reductant Pressure)