Speed Sensitive Intermittent Wipers

Speed Sensitive Intermittent Wipers
The Ram truck equipped with a high line CTM will utilize speed sensitive intermittent wipers. Only a high line CTM will be able to support this feature. A base CTM (IEM) will provide for intermittent wipers without the speed sensitive feature. The low and high speeds are controlled through the wiper stalk switch. The intermittent portion of the wiper control is handled by the CTM through the intermittent wiper relay. When the module detects a decrease in delay time as selected by the driver, an immediate wipe of the windshield takes place and the new delay interval is
implemented. This feature is present on both the base and highline CTM.

When the vehicle is moving at speeds at or below 10 mph, the delay time ranges from 1 to 36 seconds. When the speed rises above 10 mph, the delay times are cut in half for a range of 1/2 to 18 seconds. The speed signal is provided to the CTM from the PCM over the CCD bus.