Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Ford >> 2003 >> Thunderbird >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Vehicle Speed Control >> Diagnosis And Testing >> Speed Control >> Pinpoint Test B: The Speed Control Switch Is Inoperative >> Normal Operation

Normal Operation

The powertrain control module (PCM) sends a signal through circuit 7-PG24 (YE/BU) to the speed control switches which passes through the clockspring. The return signal is sent through circuit 31S-PG24 (BK/OG) and the clockspring.