Sorry if this issue has been covered to death. This is a specific rear window issue.
On two recent trips my '93 4Runner covered 30+ miles of dusty, washboard, gravel roads in southern AZ & NM. When I arrived at my destination the rear window lowered fine. When I attempted to raise it w/ either console switch or rear key switch I got the alarm beep-beep-beep as if the tailgate was not properly closed. The rear wiper was properly seated. Big problem in the backcountry along the US-Mexico border w/ an unsecured truck full of gear. The trip out sucked, literally. TONS of dust sucked in which coated everything. An hour back on pavement and it works again! The same sequence of events on a later trip. The window worked fine on pavement. Twenty miles on washboard and it won't raise after being lowered. Back on pavement after a few hours and it works again! Vibration is clearly the culprit but tough problem to isolate & solve when it self-corrects. A friend w/ a 2nd gen 4Runner had someone bypass a "sensor" or circuit IN THE TAILGATE which corrected the same problem. I've had it checked out at a few local Toyota places and the relay is unlikely to be the source of the problem. Anyone know of a sensor or circuit in 2nd generation 4Runner tailgate that can be bypassed?
On two recent trips my '93 4Runner covered 30+ miles of dusty, washboard, gravel roads in southern AZ & NM. When I arrived at my destination the rear window lowered fine. When I attempted to raise it w/ either console switch or rear key switch I got the alarm beep-beep-beep as if the tailgate was not properly closed. The rear wiper was properly seated. Big problem in the backcountry along the US-Mexico border w/ an unsecured truck full of gear. The trip out sucked, literally. TONS of dust sucked in which coated everything. An hour back on pavement and it works again! The same sequence of events on a later trip. The window worked fine on pavement. Twenty miles on washboard and it won't raise after being lowered. Back on pavement after a few hours and it works again! Vibration is clearly the culprit but tough problem to isolate & solve when it self-corrects. A friend w/ a 2nd gen 4Runner had someone bypass a "sensor" or circuit IN THE TAILGATE which corrected the same problem. I've had it checked out at a few local Toyota places and the relay is unlikely to be the source of the problem. Anyone know of a sensor or circuit in 2nd generation 4Runner tailgate that can be bypassed?
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