Pinpoint Test Km: Air Conditioning Clutch (A/Cc) Relay Circuit: Introduction
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 |