Wiper Inoperative

Connect an ammeter and battery to No. 2 terminal and a jumper wire from No. 1 and 3 terminals to ground. Wiper should operate at low speed. If ammeter reading is 0, check for loose splice joints or loose solder connection at No. 2 terminal. If reading is 1-1.5 amperes, check for sticking brushes, open armature or loose splice joint. If reading is 11 amperes, check for broken gear or other stalling condition.