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Front Wiper Motor Inspection




1. As illustrated, use a 12 V battery to connect its (+) terminal to terminal "A", and its (-) terminal to Black lead wire.
If motor rotates at a low revolution speed of 44 to 52 rpm, it is proper. For high speed check, connect battery (+) terminal to terminal "B", and its (-) terminal to Black lead wire. If motor rotates at a high revolution speed of 64 to 78 rpm, it is proper.
2. Testing automatic stop action.
a. Connect 12 V battery (+) terminal to terminal "A" of wiper motor and (-) terminal to "Black" lead wire (1) and let the motor turn.
b. Disconnect terminal "A" from battery, and let the motor stop.
c. Connect terminal "A" and "C" with a jumper wire (2), and connect terminal "D" to battery (+) terminal. Observe the motor turns once again then stops at a given position.




d. Repeat a) thru c) several times and inspect if the motor stops at the given position every time.