PINPOINT TEST KN: Variable Speed Electric Cooling Fan: Introduction

WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 2011 Mercury Milan, 2011 Mercury Mariner, 2011 Mercury Grand Marquis, 2011 Lincoln Town Car, and 2011 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: CROWN VICTORIA POLICE INTERCEPTOR VEHICLES EQUIPPED WITH FIRE SUPPRESSION SYSTEM, REFER TO APPROPRIATE SERVICE INFORMATION FOR IMPORTANT SAFETY WARNINGS . FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.

This pinpoint test is intended to diagnose the following:

cooling fan module (8B658)
cooling fan assembly (8C607)
harness circuits: FCV, B+ and GND
powertrain control module (PCM) (12A650)

Fig 1: Identifying Cooling Fan (CF) Module Connector
Courtesy of FORD MOTOR CO.

Fig 2: Identifying Cooling Fan (CF) Motor Connector

Courtesy of FORD MOTOR CO.

Powertrain Control Module (PCM) Connector

For PCM connector views or reference values, refer to REFERENCE VALUES .

POWERTRAIN CONTROL MODULE (PCM) CONNECTOR PINS REFERENCE CHART

Vehicle	Connector	Pin	Circuit
Crown Victoria, Grand Marquis, Town Car	170 PIN	E7	FCV
Flex 4V 3.5L, MKS 3.7L, MKT 3.7L, Taurus 4V 3.5L	190-PIN	B48	FCV
Fusion 3.5L, MKZ	140 PIN	B8	FCV
All other vehicles	190-PIN	B34	FCV