Wiper Has High Speed Only

With ignition switch in "ON" position and wiper switch in "LOW" position, remove harness connector from wiper motor. Connect a jumper wire from a 12 volt source to terminal 2 of wiper motor. If wiper runs in low speed, check for an open in wire from terminal 2 to column switch. If wire is okay, replace column switch. If wiper motor did not run, check for a hung or grounded low speed brush.