Turn Signal Indicators
WARNING: This page is about a different car, the 2009 Mercury Grand Marquis and 2009 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
When the multifunction switch is in the LH turn signal position or the RH turn signal position, voltage is sent from the multifunction switch to the instrument cluster (IC) through hardwired circuitry. The instrument cluster (IC) flashes the LH or RH turn signal indicators on and off.