Normal Operation
WARNING: This page is about a different car, the 2009 Ford Flex. However, it is still accessible from the selected car via links, so may be relevant.
The PCM sends a signal through circuit VES10 (WH) to the speed control switches, which passes through the clockspring. The return signal is sent through circuit RES08 (GN/BN) and the clockspring.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- PCM not configured for speed control
- Speed control switch
- Digital Transmission Range (TR) sensor
- Vehicle Speed Sensor (VSS)
- PCM