Pinpoint Test HX: Evaporative Emission (EVAP) Monitor and System: Introduction

WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, 2011 Ford Fusion, 2010 Mercury Milan, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: TO PREVENT THE RISK OF HIGH-VOLTAGE SHOCK, ALWAYS FOLLOW PRECISELY ALL WARNINGS AND SERVICE INSTRUCTIONS, INCLUDING INSTRUCTIONS TO DEPOWER THE SYSTEM. THE HIGH-VOLTAGE HYBRID SYSTEM UTILIZES APPROXIMATELY 300 VOLTS DC, PROVIDED THROUGH HIGH-VOLTAGE CABLES TO ITS COMPONENTS AND MODULES. THE HIGH-VOLTAGE CABLES AND WIRING ARE IDENTIFIED BY ORANGE HARNESS TAPE OR ORANGE WIRE COVERING. ALL HIGH-VOLTAGE COMPONENTS ARE MARKED WITH HIGH-VOLTAGE WARNING LABELS WITH A HIGH-VOLTAGE SYMBOL. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN SERIOUS PERSONAL INJURY OR DEATH.

NOTE: Enter this pinpoint test only when directed here.

The use of a soap solution around the capless fuel tank filler pipe or the use of the hydrocarbon emission analyzer to determine an evaporative emission system leak is not recommended. The mandatory Rotunda Evaporative Emission System Leak Tester for On Board Diagnostic (OBD) (including the ultrasonic tester) and the Rotunda Smoke Machine, Fuel Evaporative Emission System Tester 218-00001 or equivalent are the only devices to be used at this time for evaporative emission system leak detection.

When using the Rotunda Smoke Machine, Fuel Evaporative Emission System Tester 218-00001 or equivalent, the fuel level in the fuel tank must be less than 85% full.

This pinpoint test is intended to diagnose the following:

canister vent (CV) solenoid (9F945)
capless fuel tank filler pipe (9034)
fuel tank pressure (FTP) sensor (9C052)
EVAP canister purge (EVAPCP) valve (9C915).
fuel vapor vent valve (9G712)
EVAP system leaks using the Rotunda Vacutec Leak Detector Smoke Machine (218-00001)
harness circuits: CV, EVAPCP, FTP, FVVV, SIGRTN, VPWR, FTPREF, and PWRGND
powertrain control module (PCM) (12A650)

Canister Vent (CV) Solenoid Connector

Fig 1: Canister Vent (CV) Solenoid Connector

Courtesy of FORD MOTOR CO.

CV SOLENOID CONNECTOR PINS REFERENCE CHART

Pin	Circuit
2	CANV (Canister Vent Solenoid)
1	B+ (Battery Positive Voltage)

Fig 2: EVAP Canister Purge (EVAPCP) Valve Connector

Courtesy of FORD MOTOR CO.

EVAPCP VALVE CONNECTOR PINS REFERENCE CHART

Pin	Circuit
1	EVAPCP (EVAP Canister Purge)
2	VPWR (Vehicle Power)

Fig 3: Fuel Tank Pressure (FTP) Sensor Connector

Courtesy of FORD MOTOR CO.

FTP SENSOR CONNECTOR PINS REFERENCE CHART

Pin	Circuit
1	FTP (Fuel Tank Pressure)
2	SIGRTN (Signal Return)
3	FTPREF (Fuel Tank Pressure Reference)

Fig 4: Fuel Vapor Vent Valve Connector

Courtesy of FORD MOTOR CO.

FUEL VAPOR VENT VALVE CONNECTOR PINS REFERENCE CHART

Pin	Circuit
1	FVVV (Fuel Vapor Vent Valve)
2	VPWR (Vehicle Power)

Fig 5: Powertrain Control Module (PCM) Connector

Courtesy of FORD MOTOR CO.

PCM CONNECTOR PINS REFERENCE CHART

Pin	Circuit
B4	FVVV (Fuel Vapor Vent Valve)
B20	CANV (Canister Vent Solenoid)
B65	FTP (Fuel Tank Pressure)
B58	SIGRTN (Signal Return)
B66	FTPREF (Fuel Tank Pressure Reference)
E31	EVAPCP (EVAP Canister Purge)