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Front Wiper System

Front wiper speeds are controlled by front wiper switch, which supplies voltage to specified wiper motor assembly terminal. See Fig 1 and Figure . In pulse operation, single stroke time interval is determined by timer in wiper motor assembly. Length of wiper delay is determined by pulse delay resistor in wiper switch.

Fig 1: Identifying Front Wiper System Operating Modes
G90E13569Courtesy of GENERAL MOTORS CORP.