Pinpoint Tests RF: REDUCTANT Pressure 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:

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

Fig 1: Reductant Pressure Sensor Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
3	SIGRTN (Signal Return)
1	VREF (Reference Voltage)
2	RDP (Reductant Pressure)

Fig 2: Reductant Pump Assembly Connector

Courtesy of FORD MOTOR CO.

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

Fig 3: Reductant Dosage Control Module Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
81	SIGRTN (Signal Return)
26	VREF (Reference Voltage)
60	RDP (Reductant Pressure)

Fig 4: Powertrain Control Module-E (PCM-E) Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
72	RDP (Reductant Pressure)

Fig 5: Powertrain Control Module-T (PCM-T) Connector

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
F-150	A	43	SIGRTN
All other vehicles	A	43 1	SIGRTN VREF