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 2009 Mercury Mountaineer, 2009 Mercury Milan, 2009 Mercury Mariner, 2009 Mercury Grand Marquis, and 2009 Lincoln Town Car. 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 FIRE SUPPRESSION SYSTEM
ARTICLE
. 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, and A/CCS
- powertrain control module (PCM) (12A650)
The VPWR and A/CCR circuits may be reversed in the harness connector. Refer to the appropriate SYSTEM WIRING DIAGRAMS article for additional information.
For PCM connector views or reference values, refer to REFERENCE VALUES .
POWERTRAIN CONTROL MODULE (PCM) CONNECTOR
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| E-Series 4.6L, E-Series 5.4L, Expedition, F-150, Focus, Navigator |
190-Pin | B2 | A/CCR |
| E-Series 6.8L, F-Super Duty |
170 Pin | E3 | A/CCR |
| Edge, Flex, MKS, MKX, Sable, Taurus, Taurus X |
190-Pin | B18 | A/CCR |
| Escape/Mariner | 190-Pin | B12 | A/CCR |
| Fusion, Milan, MKZ |
140 Pin | B64 | A/CCR |
| All other vehicles | 170 Pin | B14 | A/CCR |