Pulse Switch (Jam Protection) Test

Slightly lower window glass for window being tested. Disconnect 5-pin connector from power window motor. Using Toyota electrical tester, check for a pulse signal generated between power window motor connector terminals No. 3 and 5. See Figure. Connect jumper wire from positive terminal of 12-volt battery to power window motor connector terminal No. 1.
Connect another jumper wire from negative terminal of battery to power window motor connector terminal No. 4. Ensure pulse signal exists while window raises to fully closed position. Reverse polarity and ensure pulse signal exists while window lowers to fully opened position. If pulse signal exists in both directions, pulse switch is okay at this time. If pulse signal does not exist in one or both directions, replace power window motor.