Pinpoint Tests C: Crankcase Ventilation 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:

harness circuits: CRNKCSVT, CVHC, GND, SIGRTN, VBPWR and VPWR
crankcase ventilation sensor
crankcase ventilation heater
PCM (12A650)

Fig 1: Crankcase Ventilation Sensor Connector

Courtesy of FORD MOTOR CO.

Pin	Circuit
2	CRNKCSVT (Crankcase Ventilation)

Fig 2: Crankcase Ventilation Heater Assembly Connector

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
Transit Connect	A	1 2	GND CVHC
F-150	B	2 1	VPWR CVHC

Fig 3: Powertrain Control Module-E (PCM-E) Connector

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
F-150	A	4	CVHC
Transit Connect	B	61	CVHC