1997 Ford F-150 power windows and interior lights

Tiny
LABELI
  • MEMBER
  • 1997 FORD F-150
  • V8
  • 2WD
  • AUTOMATIC
  • 155,000 MILES
When I open my door and the interior light come on I know I have power windows. When the interior lights click off before I shut the door, I know the power windows won't be working. Some how these are on the same circuit. I can be driving and I can hear a "click" and then the windows will work. The wipers also seem to be tied into this but not all the time. If I don't have wipers, I can turn off the engine and then just turn on the ignition but don't start the engine and the wipers will work. This is driving me nuts as I have replaced relays thinking one might be shorting or hanging up but it hasn't helped.
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Saturday, January 23rd, 2010 AT 7:49 AM

3 Replies

Tiny
JACK42
  • EXPERT
Havee you tried swapping out the Battery Saver Relay? It amy be that, but it loks like those things also get power via the G.E.M module. Have seen a bunch of those have issues. The C.T.M Central Timer Module also controls those functions
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Monday, January 25th, 2010 AT 2:09 PM
Tiny
LABELI
  • MEMBER
I think it may be the GEM as my window weather stripping wasn't seated in the windshield right. I used a mallet and tapped it down in there and siliconed it. I sure didn't spot any moisture around the GEM but hit it with a hair dryer(blower) and the darn thing seems to be working for now! Will definitely keep those other two you mentioned in mind. Thanks again!
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Monday, January 25th, 2010 AT 7:21 PM
Tiny
JACK42
  • EXPERT
Good find. I should have asked about water leaks, those trucks tend to crack windshields on the drivers side bottom and the water goes right in the GEM
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Tuesday, January 26th, 2010 AT 7:31 AM

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