2000 Mazda 626

Tiny
ROWDYROMPER
  • MEMBER
  • 2000 MAZDA 626
  • 6 CYL
  • FWD
  • MANUAL
  • 61,000 MILES
Hello I am new here I just bought a 2000 Mazda 626 the interior lights do not come on when I open the doors, the automatic door locks do not work nor make a sound and the rear defroster doesn't work.I believe a car alarm somehow caused this problem since now there isn't one and I have only the secondary key to the car. So any ideas would be greatly appreciated. I have heard that maybe it is a central control module gone bad, but dont know where that is located to try and test it.
Thursday, January 29th, 2009 AT 12:39 AM

7 Replies

Tiny
ZACKMAN
  • MECHANIC
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https://www.2carpros.com/forum/automotive_pictures/55316_00626fuse_1.jpg


Check this fuse. PDL and interior light shares the circuit.

For the rear defroster, does the light on the switch work?
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Friday, January 30th, 2009 AT 12:05 AM
Tiny
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Thank you for replying, If these are located under dash on drivers side then I have checked these and they are ok.
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Friday, January 30th, 2009 AT 11:28 AM
Tiny
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Let's start with one problem at a time. Start with your door lock first.


https://www.2carpros.com/forum/automotive_pictures/55316_00626dl1_1.jpg



https://www.2carpros.com/forum/automotive_pictures/55316_00626dl2_1.jpg



https://www.2carpros.com/forum/automotive_pictures/55316_00626dl3_1.jpg



As for your interior illumination, the operation is controlled by the CPU. Before ruling out the CPU, check your door switches first.
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Sunday, February 1st, 2009 AT 12:38 AM
Tiny
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I will try this troubleshooting asap, might not be until friday as my wife works days and I work long odd hours, so hard for me to get to it until weekends arrive.
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Sunday, February 1st, 2009 AT 10:46 PM
Tiny
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Take your time. Let me know.
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Tuesday, February 3rd, 2009 AT 12:09 AM
Tiny
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Well I finally got a chance to test this out and assuming I did this corectly I got nothing no buzzer, complete silence, so next step is to replace the cpu and try again I guess. First I got to find the cpu, and then track one down (maybe a junk yard). I'll get back to you.
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Sunday, February 8th, 2009 AT 11:23 PM
Tiny
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https://www.2carpros.com/forum/automotive_pictures/55316_00626dash2_1.jpg



https://www.2carpros.com/forum/automotive_pictures/55316_00626dash_1.jpg



I know the CPU runs all the operations, but can you just check the door lock control module #1 and #2? Who knows....
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Monday, February 9th, 2009 AT 8:16 PM

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