mojorizing

yes, pin 12 - white/red

996noob

Good news! Everything worked out. Wiring issue in the harness to the CU. Thanks for the help!

bassie81

Does anyone know if the speed signal can easily be altered to have the spoiler go up at higher speed?

Or will alteration of the signal conflict with other systems?

mojorizing

All you need to do is change out a component value in the module.

I'll have to look at my notes which I won't have till after the end of this month since I'm travelling.

PM me around then to remind me.....

Lorenfb

"Does anyone know if the speed signal can easily be altered to have the spoiler go up at higher speed?"

Yes, it's a simple mod requiring only a couple of resistor changes.
It does not affect other systems.

bassie81

Is there a how-to on the forum on this simple mod?

mojorizing

I've worked up a couple of graphs to show how to replace selected resistors to change the speed at which the spoiler extends/retracts.

The 39K ohm resistor (orange-white-orange) boxed in black in the pic below can be replaced with another resistor with a value that corresponds off of the graph labeled "39K ohm Replacement". The speed at which the spoiler retracts remains the same, but the speed at which it extends is changed.





The 180K ohm resistor (brown-grey-yellow) next to the 39K will change the speed at which the spoiler extends and retracts as shown in the below graph.



1/4 watt +/- 5% resistors are fine, and your speeds may vary a few mph's due to slight differences in the capacitors used in the RC timing circuits on your particular module, but these graphs should get you in the ball park using available resistor values.

rollingjack

I think that you are hero of this month!

I have looked for this solutions many years.

Can you extend 180 Kohm replacement graph to 80 Mph as is 39 Kohm replacement graph?

koenig_roland

great stuff. Thx!!

I think i`m going to change the brown-grey-yellow one to a 50kOhm version.

mojorizing

Yes, I'll extend the one graph.

Let me know if you want specific speeds for retract and extend - both resistors would be replaced.

edit: here's more data points on the 180K graph

rollingjack

Very good! Thx!

I think, that go with 24 K Ohm instead 39 K Ohm, extend speed 68 Mph.

And 50 K Ohm instead 180 K Ohm, extend speed 68 Mph and retract by 32 Mph.

Correct?

mojorizing

Yes, swapping out only the 39k with a 24k will make the extend speed occur at 68mph keeping the retract speed as before (approx. 9)

Swapping out the 180K with a 50K will effect both extend and retract speeds as per the chart

alexjc4

Thank you mojorizing, you are a legend!

fuch

You made me happy!!......thanks

slips2

28K replacement for the 39K-ohm resistor deploys the spoiler at 60mph for me, as outlined.
So happy not to have the spoiler up/dwn ... up/dwn ... up/dwn ... while cruzin' PCH with the many stoplights.
Thanks mojorizing for sharing your expertise!