Question about 2000 Oldsmobile Alero

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Power windows and blower motor stopped working at exactly the same time. At the power window circuit breaker (Right Junction Box) I used a bypass hot wire using 25A circuit breaker and closed the circuit to check my power windows and they all work just fine. So I know that all my motors and switches are good. I am not getting power to the circuit breaker in the right junction box. According to the wiring diagram pwr windws circuit breaker 25A is a Hot in Run only. I checked my blower motor with a bypass and thats good the resistor is good to. In the junction box under the hood I checked the blower motor relay thats good I checked terminal 30 (a hot at all times) And I have no power there. What do I do next? I'm really trying my best. please help

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  • marcosquartz Nov 14, 2008

    thank you for your help.

  • Anonymous Mar 31, 2014

    power widows will not work and the fuse is good

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Check for inline fuses. wire that will melt if theres to many amps running through it usually under the hood. hope this helps

Posted on Nov 06, 2008

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Click on the link for part of wiring diagram. You can see fuse and relay in smart junction box. The smart junction box, behind right hand lower A pillar panel, passenger side. I can't walk you through it, because I'd have to look at it.

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Which relay/fuse controls the power windows?


Visual Inspection Chart Mechanical Electrical
  • Door window regulator and motor
  • Door glass top run
  • Door window glass
  • Loose, corroded connectors
  • Circuitry
  • Window control switch
  • Battery junction box (BJB) fuse(s):
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    • 30 (10A)
  • SJB circuit breaker 10 (30A)
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I have a 2007 Ford Freestyle Limited and i want to know what fuse control the power windows and radio


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  • Door glass run
  • Door window glass






  • Loose, corroded connectors
  • Circuitry
  • Window control switch
  • Battery junction box (BJB) fuses:
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    • 30 (30A)
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    • 25 (30A)
  • SJB circuit breaker
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1 Answer

Where is the Power Windows Fuse in a 2005 Ford Taurus?


It is located in the SJB smart junction box , it's a fuse / relay center / microprocessor ! Fuse # F2.10 30 amp . location -behind left side dash panel . Also check the accessory relay . Top relay left side , same location SJB .
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  • Door glass top run
  • Door window glass
  • Loose, corroded connectors
  • Circuitry
  • Window control switch
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    • 3 (60A)
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    • 30 (10A)
  • SJB circuit breaker 10 (30A)
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  • Battery saver relay
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1 Answer

Which Relay/Fuse controls the power windows?


Did you check for battery voltage at the switch , with a volt meter before you replaced the main driver door switch ? Maybe you'll want to take this to pro ,instead of just replacing parts !
Symptom Chart Condition Possible Sources Action
  • No communication with the smart junction box (SJB)
  • Circuitry
  • SJB
  • REFER to Section 419-10 .
  • A single power window is inoperative - driver front power window is inoperative/does not operate correctly
  • Power window motor regulator and motor
  • Circuitry
  • Window control switch
  • Smart junction box (SJB)
  • Go To Pinpoint Test A .
  • A single power window is inoperative - passenger front, left rear or right rear
  • Power window motor regulator and motor
  • Circuitry
  • Window control switch
  • Go To Pinpoint Test B .
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  • Smart junction box (SJB) fuse 30 (10A)
  • SJB circuit breaker 10 (30A)
  • Circuitry
  • Delayed accessory relay
  • Battery saver relay
  • Driver window control switch
  • SJB
  • Go To
PINPOINT TEST C: ALL POWER WINDOWS ARE INOPERATIVE Test Step Result / Action to Take C1 CHECK FOR CORRECT OPERATION OF THE INTERIOR LIGHTS
  • Turn on the interior lights.
  • Do the interior lights operate normally?
Yes
GO to C2 .

No
To continue diagnosis, REFER to Section 417-02 . C2 CHECK CIRCUIT 400 (LB/BK) FOR VOLTAGE TO THE DRIVER WINDOW CONTROL SWITCH
  • Disconnect: Driver Window Control Switch C504b.
  • Key in ON position.
  • Measure the voltage between the driver window control switch C504b pin 4, circuit 400 (LB/BK), harness side and ground.
    >
  • Is the voltage greater than 10 volts?
Yes
GO to C4 .

No
GO to C3 . C3 CHECK CIRCUIT 400 (LB/BK) FOR AN OPEN OR SHORT TO GROUND
  • Key in OFF position.
  • Disconnect: SJB C2280c.
  • Measure the resistance between the driver window control switch C504b pin 4, circuit 400 (LB/BK), harness side and the SJB C2280c pin 17, circuit 400 (LB/BK), harness side; and between the driver window control switch C504b pin 4, circuit 400 (LB/BK), harness side and ground.
    >
  • Is the resistance less than 5 ohms between the driver window control switch and the SJB; and greater than 10,000 ohms between the driver window control switch and ground?
Yes
Go To Pinpoint Test H

No
REPAIR the circuit. TEST the system for normal operation.

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go here for help

http://autos.groups.yahoo.com/group/villagerquest/

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1 Answer

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Power Windows Inoperative - All
Step
Action
Value(s)
Yes
No
DEFINITION: All power windows inoperative from all door window switches.
1
Was the Power Door System Diagnostic System Check performed?
--
YES - Go to Step 2
NO - Go to Diagnostic System Check - Power Door Systems
2
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0-5 ohms
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NO - Go to Step 3
3
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--
NO - Go to Diagnostic System Check - Power Door Systems
--
4
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10-15 V
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5
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--
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go to this site for more help

http://autos.groups.yahoo.com/group/villagerquest/

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