Front Wiper Motor Inspection

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 45 to 55 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 67 to 83 rpm, it is proper.

Fig 1: Inspecting Front Wiper Motor
Courtesy of SUZUKI OF AMERICA CORP.
Testing automatic stop action.
1. Connect 12 V battery (+) terminal ("Red" lead wire (3)) to terminal "A" of wiper motor (2) and (-) terminal to "Black" lead wire (4) and let the motor turn.
2. Disconnect terminal "A" from battery (1), and let the motor (2) stop.
3. Connect terminal "A" and "D" with a jumper wire (5), and connect terminal "C" to battery (+) terminal. Observe the motor turns once again then stops at a given position.
4. Repeat a) through c) several times and inspect if the motor stops at the given position every time.
Fig 2: Testing Automatic Stop Action Of Front Wiper Motor
Courtesy of SUZUKI OF AMERICA CORP.