Windshield wipers on most cars have two speeds. The two speeds are controlled by a three-position windshield wiper switch. Additionally, some windshield wipers also have one or more intermittent settings. A two-speed windshield wiper switch is actually two switches moving together in one package. One switch controls off, low, and high and the other switch provides power to park the windshield wipers while they're in the off position.
Connect the wire from the high-speed motor contact to the high-speed terminal on the high-low-off section of the switch. This wire may be labeled 53b.
Connect the wire from the low-speed motor contact to the low-speed terminal on the high-low-off section of the switch. This wire may be labeled 53.
Connect 12-volt ignition power to the common terminal on the high-low-off section of the switch. This wire may be labeled 53a. The off position on the high-low-off section of the switch will be left with no connection.
Connect the wire from the parking cam on the motor to the common terminal on the park section of the switch. This wire may be labeled 53e or 31b.
Connect the wire from the low-speed motor contact to the off (park) terminal on the park section of the switch. Note that this wire is also connected to the low-speed terminal on the high-low-off section of the switch. This wire may be labeled 53. The low and high positions on the park section of the switch will be left with no connections.
