PINPOINT TEST KM: Air Conditioning Clutch (A/CC) Relay Circuit: Introduction

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2008 Mercury Sable, 2008 Mercury Mountaineer, 2008 Mercury Milan, 2008 Mercury Mariner, and 2008 Mercury Grand Marquis. 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 part 419-03 for Important Safety Warnings. Failure to follow these instructions may result in personal injury.

This pinpoint test is intended to diagnose the following:

A/CC relay
harness circuits: VPWR, A/CCR, A/CCS
powertrain control module (PCM) (12A650)

Fig 1: Air Conditioning Clutch (A/CC) Relay Connector - A

Courtesy of FORD MOTOR CO.

Fig 2: Air Conditioning Clutch (A/CC) Relay Connector - B

Courtesy of FORD MOTOR CO.

Fig 3: Air Conditioning Clutch (A/CC) Relay Connector - C

Courtesy of FORD MOTOR CO.

Vehicle	Connector	Pin	Circuit
Expedition, F-150, Mark LT, Navigator	A	1 2	A/CCR VPWR
Focus	B	2 1	A/CCR VPWR
All other vehicles	C	1 2	A/CCR VPWR

The VPWR and A/CCR circuits may be reversed in the harness connector. Refer to the Wiring Diagrams article for additional information.

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

Vehicle	Connector	Pin	Circuit
E-Series, F-Super Duty	170 Pin	E3	A/CCR
Edge, F-150, Mark LT, MKX, Sable, Taurus, Taurus X	190 Pin	B18	A/CCR
Escape/Mariner	150 (50-50-50) Pin	B25	A/CCR
Expedition, Navigator	140 Pin	B18	A/CCR
Focus	190 Pin	B2	A/CCR
Fusion, Milan, MKZ	140 Pin	B64	A/CCR
All other vehicles	170 Pin	B14	A/CCR