Right side windows not opening from Master control.

Tiny
BENJAMINJOS
  • MEMBER
  • 2009 LEXUS RX 350
  • 6 CYL
  • AUTOMATIC
  • 100,000 MILES
The right side windows work from the buttons on the near the window itself but won't open from the master button on the driver side. I recently changed my battery because it was bad.
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Tuesday, August 12th, 2014 AT 4:52 PM

3 Replies

Tiny
CARADIODOC
  • EXPERT
Did this problem start right after the battery was replaced? If so, start by checking for blown fuses. That often happens from the surge when the battery cables are reconnected.

If the two things aren't related, the most likely suspect when one window doesn't work is a defective switch. It's important to be aware that it can be either switch, the driver's OR the passenger's switch, regardless of which one works the window properly. Each switch actually has four separate switch contacts inside. Two are used when that switch is activated, and the other two are at rest and used when the other switch is activated. We can do electrical tests to determine which switch is at fault, but its easier and faster to find good used ones in a salvage yard and just plug them in to try them.

When multiple windows don't work, the place to start is by checking for broken or frayed wires between the door hinges. It's not likely you'll have two bad switches at the same time unless something happened inside the driver's switch that affects both right windows.
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Tuesday, August 12th, 2014 AT 8:04 PM
Tiny
BENJAMINJOS
  • MEMBER
Which fuse box would the blown fuse be in. The driver side or the engine?
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Tuesday, August 12th, 2014 AT 8:08 PM
Tiny
CARADIODOC
  • EXPERT
Check 'em all. The fuses under the hood are mostly large ones that feed multiple smaller circuits, and the ones inside the vehicle typically are for those smaller circuits. Most fuses now have two tiny holes on top for test points. Use a test light to quickly check each point. You're looking for any fuse where the test light lights up on one point but not the other one. You'll want the ignition switch turned on during this test. You're going to find some fuses that have no voltage on either test point. Generally you can ignore them. Those are for circuits that aren't currently turned on. The window circuit IS turned on when the ignition switch is on, even though you haven't activated a switch.
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Tuesday, August 12th, 2014 AT 8:17 PM

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