VW Dash Switch Testing - Wiper Switch & Motor:

Video Transcript:

Hi! Sam here with JBugs.com We're about ready to start wiring our 1971 Super Beetle but before we do, we're going to go through all of the electronic components and test them here at the bench before we install them in the car. Instead of posting one long video where we cover testing all the switches, we've broken it up into smaller portions. To test our wiper switch, we'll use a multimeter and we have it set to test continuity with an audible beep. The terminals on the back of the switch are; 30, 53B, 53, 53A, 31, and 31B. The 31 terminals are both ground terminals. The 30 terminal is power to the switch from the fuse box. The 53 terminals will be power out to the motor at the three positions at the switch. As we turn the knob for the switch, we'll have power off/park position, speed one, and speed two. To test the switch, we'll put one lead of the meter on the 30 terminal, and with the switch turned to the off position, we can check the 53 terminals with the other lead. We see that the 53A terminal has continuity at the off position, as it should. This is so that when we turn the wiper switch off, the wiper motor has the power to move the arms to the park position on the windshield. Next, we can test the speed one position so we turn the switch and check the continuity at the middle 53 terminal. Then, we turn the switch to speed two and check continuity at the 53B terminal. Now we know that our original wiper switch still works, so there is no need to replace it. Now, we'll test our restored wiper motor, which we already know works but to show you all. Looking at the motor and all the terminals on it, we've got a 31 terminal on the metal body at the motor. And the four terminals above it which are; 53A, 31B, 53, and 53B. Using a 12Volt jumper box, we'll ground out the 31 terminal. Using a jumper wire, we can test the 53 speed one terminal, to operate the motor. Then we can test the speed two, 53B terminal, and the motor operates a little quicker than speed one. Then, we test the 53A terminal and the motor parks, although we were almost at the park position already. We'll go through one more time to demonstrate more clearly speed one working, speed two working, and 53A brings the motor back to the park position.