Aug 4, 2009

AC Wire Bypass

Well what the heck is the point of having a new AC compressor, new rubber lines and new o-rings if you can't turn your AC on!? I am getting tired of being so close to having AC in this car so I decided to make a strong push to get it going. The problem I am having is that the AC control in the dash board, runs through the stock ECU. I no longer have the stock computer, and have gone to a MoTeC M2R. So with out that connection, the AC compressor will not turn on using the AC button on the dash. Thanks to Rob XX 7 on the, I know which wires need to be jumped to allow the AC button to make a complete circuit.

This was done on a 1987 Mazda RX-7 Turbo II:
Pull back the carpet in front of the passenger seat. This harness is the one needed to work with. If you click on the picture, you can see a larger view. It splits off the large harness running across the back of the wall and has a yellow clip.

Locate the BLUE and ORANGE wire. It is the third wire from the end of the clip. See Below. This is one of the wires you need to jump, so go ahead and slip your jumper wire in the front of that slot.

Turn the clip over and locate the BLUE and WHITE wire. This is also the third wire from the end. The two wires are right on top of one another. Slip the other end of the jumper wire in this slot as well.

Here is my el-Cheap0 AC jumper solution.
Not show in this picture,but I soldered the two connections and used electrical tape to protect the wire.
Now when I push the AC button, the orange light above the button lights up. Now all I need is Freon!! :(

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