Download 1999 Toyota 4Runner Power Window Service Manual – Troubleshooting POWER WINDOW CONTROL SYSTEM Procedures TROUBLESHOOTING 1 One touch power window does not move up and down. (Prepare normal master and regulator switch.) After turning the ignition switch ON and power window regulator switch UP and DOWN on the passenger side, check that the master and regulator switch AUTO light blinks. * Error is classified into the following 3 types according to the pattern of blinking. UP and DOWN ON OFF Limit switch/Pulse sensor synchronize error Limit switch error 1.5 sec REPEAT 0.5 sec 1.5 sec 2 sec Pulse sensor error 1 sec 2 sec 0.5 sec REPEAT 1 sec REPEAT S When 30 seconds has elapsed since start of blinking, blinking stops. < Reference > (AUTO light remains ON) S When turning the ignition key OFF, blinking stops.