Have replaced the BCM module on my 1996 Dodge Caravan 3.8 ltr 3 times and the wipers will not work again.

windshield wipers will not work.  have replaces, BCM, wiper/turn signal switch, ignition switch, ignition lock set, tested all relays, fuses all good.  left turn indicator works on and off...If I click the high/low headlight arm on and off 6-8 times, the turn signal sometimes will begin to work.