Ground Circuits
Turn ignition off. Disconnect PCM 104-pin connector. See PCM LOCATION table. Using DVOM, check for continuity between chassis ground and specified PCM connector terminals. See IDENTIFYING PCM PWR GROUND TERMINALS table. See Figure. If continuity exists, see POWER CIRCUITS . If continuity does not exist, repair open in affected ground circuit. See WIRING DIAGRAMS article.
PCM LOCATION
| Application | Location |
|---|---|
| Crown Victoria | Behind Left Kick Panel, Near Instrument Panel |
| Econoline | Left Rear Of Engine Compartment, Near Brake Master Cylinder |
| F150 Pickup | Right Rear Of Engine Compartment |
IDENTIFYING PCM PWR GROUND TERMINALS
| Application | PCM Ground Terminal No. |
|---|---|
| Crown Victoria | 3, 25, 51, 77 & 103 |
| Econoline | 3, 24, 25, 51, 76, 77 & 103 |
| F150 Pickup | 3, 25, 51, 76 & 103 |