Speed-Dependent Windshield Wipers

WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

The speed-dependent feature increases the frequency of wiping to compensate for the extra moisture that accumulates on the windshield as the vehicle speed increases, when the multi-function switch is in any intermittent setting except the INT 1 position. The windshield wiper module receives vehicle speed sensor (VSS) information directly from the ABS module. As vehicle speed increases, the speed-dependent feature gradually shortens the delay between wipes.

The speed-dependent feature is easiest to verify in the INT 2 position. With the vehicle at a standstill and the multi-function switch in the INT 2 position, the wipers should operate once every 10 seconds. As vehicle speed increases, the delay between wipes will gradually shorten. For example, by the time the vehicle reaches 100 km/h (62 mph), the wipers should operate every 5 seconds. Speed dependent operation is similar in INT 3, INT 4 and INT 5 modes.