With the key on & the wiper switch on high check for 12 volts at terminal A (Purple wire) of connector C2 going to the wiper motor module. Place pos meter lead on terminal A & neg meter lead to neg battery terminal.
If you don't have 12 volts then remove fuse #25 & check for power between each terminal & ground. One terminal should have 12 volts.
If you have 12 volts then move the neg meter lead to terminal C (black wire) of the same connector. If you no longer have 12 volts then you need to follow the black wire to ground G100 & clean the connection.
Let us know what you find.
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