Having problems with your 2003 Mazda MPV ?

Electric Windows, drivers window stop working

Posted / edited by AnonymousUser on : 18-06-2018

Answers :

Possible causes:
  • Switch - if the window works with one of the switches, then it's \015\012likely the one that doesn't needs cleaning or has failed\015\012
  • \015\012
  • The fuse is blown\015\012
  • \015\012
  • The window motor is the problem - sometimes the motor gets stuck, \015\012other times they completely fail.\015\012
I find this DIY about this switch, so, check it...
As most of us already know, the power window switches in the FC aren't \015\012that grand. Most, if not all, require fairly consistent 'cleaning'. This\015\012 'cleaning' entails pulling the switches out of the door panel, taking \015\012them apart and then sanding the contacts very gently to remove the \015\012corrosion that causes them to stop working properly/efficiently. The \015\012reason that the switches fail temporarily are because every time you \015\012depress the switch and the contact surfaces mate, a slight arc occurs. \015\012Over time, this arcing corrodes the contact surfaces, causing the \015\012current flow to deteriorate. While easily solved...it's a pain in the \015\012backside!
\015\012I will admit, this idea did not originate from my own mind. Another \015\012forum member has written about this swap some time ago, but it lacks \015\012detail (as I found out tonight).
\015\012The switches you want come from the first generation Mazda MPV of which \015\012spans from 1989 to 1998. They will drop into the door panel seamlessly \015\012and look pretty good in comparison to the factory switch sets.
\015\012The passenger side window switch is a DIRECT drop in replacement, while \015\012the driver side master switch requires cutting the wiring harness off \015\012and swapping over the harness from your old factory switch. It's easy, \015\012but confusing, and it took me a while to get it right. So here's the \015\012key...
\015\012Cut the harness off at the base, to give you plenty of wire to work with\015\012 in case you accidentally snip a little too hard and cut the wires off \015\012entirely while attempting to strip them later.
\015\012You will notice that the color coding of the insulation is identical \015\012looking at the factory and the MPV switches. This is what will throw you\015\012 off. The thick black wire with blue striping is plug and play, as are \015\012the solid black and black with red striping wires.
\015\012However, to make the switch work properly, you will need to switch the \015\012other color wires with their counterparts. For example: The green wire \015\012with black striping will need to be mated with the green wire with white\015\012 striping on the MPV switch. You get the idea?
\015\012If you've done it right, when you test the switch both windows will work\015\012 properly. I went through several different combinations before I got it\015\012 right. It can get confusing.
\015\012So to sum it up in an easy to look at sort of get up:
\015\012Colors that directly swap over:
\015\012- Thick black with blue stripe.
- Thick solid black.
- Thick black with red stripe.
\015\012Colors that need to be opposed:
\015\012- Green with white stripe > Green with black stripe.
- Green with black stripe > Green with white stripe.
- Red with black stripe > Red (It will be red with white stripe on the \015\012old harness)
- Red (Red with white stripe) > Red with black stripe.

I hope this helps someone who is wanting to do this swap. The switch \015\012works great and feels more solid than the standard FC switch set!
Repair Help & Product Troubleshooting for 2003 Mazda MPV

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