Power Circuits
WARNING: This page does not describe the selected car, but rather 26 other vehicles, including the 1999 Mercury Tracer, 1999 Mercury Sable, 1999 Mercury Mystique, 1999 Mercury Mountaineer, and 1999 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
Turn ignition off. Using a voltmeter, check for battery voltage between ground and PCM terminal No. 55 (KAPWR). Turn ignition switch to START or RUN position. Check for battery voltage between ground and PCM connector terminals No. 71 (VPWR). If battery voltage is not present, power is not being supplied from PCM power relay. See TEST B under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V article.
POWERTRAIN CONTROL MODULE LOCATION
| Application | Location | |
|---|---|---|
| Continental, Sable & Taurus | Right Rear Of Engine Compartment, Mounted On Cowl | |
| Contour, Cougar & Mystique | Right Side Of Engine Compartment | |
| Crown Victoria, Grand Marquis & Town Car | Behind Master Cylinder | |
| Econoline | Left Rear Of Engine Compartment, Near Brake Master Cylinder | |
| Escort & Tracer | Underneath Center Console | |
| Expedition & Navigator | Right Side Of Engine Compartment | |
| Explorer, Mountaineer & Ranger | Right Rear Of Engine Compartment, Mounted On Cowl | |
| Mustang | Behind Right Kick Panel | |
| Pickup | ||
| F150 & F250 | Right Side Of Engine Compartment | |
| Super-Duty Models | Behind Left Side Of Instrument Panel, Near Bake Pedal | |
| Windstar | Right Rear Of Engine Compartment, Mounted On Firewall | |