Test Connector Locations
All Thunderbird/Cougar models have the SELF-TEST connector in front of left shock tower.
All Mustang/Capri models have SELF-TEST connector on left shock tower, near ignition coil.
On Continental/Mark VII models, the SELF-TEST connector is on the right side of the engine compartment, near firewall.
The Crown Victoria/Grand Marquis and Lincoln Town Car, have the SELF-TEST connector on left fender apron, above wheelwell (near fuel pump relay on Lincoln).