S13 Digital Climate Control Conversion w/o subharness

[JrDarknes]

Originally Posted by Om1kron

I also haven't had a chance to go through your write up. But I saw in a youtube video a recommendation to reverse the polarity on the mode door motor by taking it apart. I just had this revelation going through chu's wiring write up for s14.

The jdm fsm has +def/-vent for pin number 7 at the mode door motor. the usdm fsm reads +vent/-def at the same pin. Why is this confusing, because if you flip it around +def/-vent is on pin 8.

I'm sure you probably caught this. But I felt it was worth mentioning. I'd much rather swap two wires instead of taking apart the motor itself.

Yea, I think we watched the same youtube video.

I originally was like that too much work, so as you did I just swapped over the pins. When I plugged it in however, the motor moved the lever all the way back and would not move after that.

At that point I was like maybe you just have to take it apart and reverse it for some odd reason. However when I did that it did the same thing as above.

It will just move the lever back and the commands will not work. It will only work unless I have it as it was intended in the JDM schematics.

Now, however I think I know the issue (unless you found out something), but I noticed ALL of the pins on the usdm one our reversed not just 7 & 8 (I dont know how I just caught that).

So I decided to make me a proper test bench at home and I'm going to test this by wiring it up to the USDM schematics with a spare intake actuator when I have the chance.

[Om1kron]

Originally Posted by JrDarknes

Yea, I think we watched the same youtube video.

I originally was like that too much work, so as you did I just swapped over the pins. When I plugged it in however, the motor moved the lever all the way back and would not move after that.

At that point I was like maybe you just have to take it apart and reverse it for some odd reason. However when I did that it did the same thing as above.

It will just move the lever back and the commands will not work. It will only work unless I have it as it was intended in the JDM schematics.

Now, however I think I know the issue (unless you found out something), but I noticed ALL of the pins on the usdm one our reversed not just 7 & 8 (I dont know how I just caught that).

So I decided to make me a proper test bench at home and I'm going to test this by wiring it up to the USDM schematics with a spare intake actuator when I have the chance.

I downloaded your stuff to take a look at it, I'm currently still stuck on troubleshooting the mode door motor.

reading your schematic

looks like you did flip your wiring around. I too was trying to logically make sense of reversing just 4 modes. So I flipped pin 30 with pin 22 and pin 31 with pin 21. no dice in the diagnostic mode.

pinned as it should be regardless if motor polarity is reversed or not.

Same effect. If wired any differently than the jdm counterpart it will not move unless it's in diagnostic mode.

I get 30 for all clear but everything is completely backwards as far as function goes haha. Just as it was for me previously times.

I will try flipping 7 and 8 again and swapping 30 and 31 and 21 and 22 to see the results.

[JrDarknes]

Originally Posted by Om1kron

I downloaded your stuff to take a look at it, I'm currently still stuck on troubleshooting the mode door motor.

reading your schematic

looks like you did flip your wiring around. I too was trying to logically make sense of reversing just 4 modes. So I flipped pin 30 with pin 22 and pin 31 with pin 21. no dice in the diagnostic mode.

pinned as it should be regardless if motor polarity is reversed or not.

Same effect. If wired any differently than the jdm counterpart it will not move unless it's in diagnostic mode.

I get 30 for all clear but everything is completely backwards as far as function goes haha. Just as it was for me previously times.

I will try flipping 7 and 8 again and swapping 30 and 31 and 21 and 22 to see the results.

I just took a look at the S14 HA FSM on the S14 thread.

Yea flip pin 7 & 8 as well and it should work. It cannot read the voltage right unless that dc motor is flipped.

Pretty much

31 goes to 2
21 goes to 5
30 goes to 3 &6
22 goes to 4 & 1
5 goes to 7
6 goes to 8

If that does not work I actually have no clue but assuming the S13,S14, use very similar circuitry I would think it would work.

[Om1kron]

Originally Posted by JrDarknes

I just took a look at the S14 HA FSM on the S14 thread.

Yea flip pin 7 & 8 as well and it should work. It cannot read the voltage right unless that dc motor is flipped.

Pretty much

31 goes to 2
21 goes to 5
30 goes to 3 &6
22 goes to 4 & 1
5 goes to 7
6 goes to 8

If that does not work I actually have no clue but assuming the S13,S14, use very similar circuitry I would think it would work.

I am not sure what the hell I looked at which had my mode door motor wiring backwards. I knew something was off. 6 is next to the ground, I wired it the opposite way since I bought a replacement plug for the mode door motor.

I'm gucci now, what a pain in the ass.