AP won't engage :(

[Jeffory]

I purchased the Marquise for XP12 a while back but have just gotten around to trying to fly it.  Flying in 5 blade OEM mode. (though I have the same problem with all acf versions)

I swear I am following the manual, but cannot get the AP to engage.   In flight (or on the ground), engines running, inverter on, the TURN knob is centered (in the detent), the left radio switch is on, MASTER SWITCH normal and the aircraft is flying healthy, but when I hit the AP button on the center console, the YD ENGAGE light comes on, but the AP ENGAGE just doesn't.  

It makes me sad.   Does anyone have any idea what I've missed?

[meierzwo]

And what Mode are you trying to fly with the AP?

With the GPS Radio Stack (I don't use the OEM Version):
Set the Heading Bug to the Direction you are flying, hit the HDG Button at the AP Mode Panel (plus ALT) and then switch on the AP.

What happened now? What happened when you moving the Heading Bug to a new Direction? You should be now in Heading and Altitude Mode.
If you want to follow a Flight Plan set or loaded into the Garmin, hit the NAV Button. Following the Magenta Line with GPS. Set CDI in the Garmin to GPS and and switch GPS on with the Switch in Front of you.

[Jeffory]

2 hours ago, meierzwo said:

And what Mode are you trying to fly with the AP?

With the GPS Radio Stack (I don't use the OEM Version):
Set the Heading Bug to the Direction you are flying, hit the HDG Button at the AP Mode Panel (plus ALT) and then switch on the AP.

What happened now? What happened when you moving the Heading Bug to a new Direction? You should be now in Heading and Altitude Mode.
If you want to follow a Flight Plan set or loaded into the Garmin, hit the NAV Button. Following the Magenta Line with GPS. Set CDI in the Garmin to GPS and and switch GPS on with the Switch in Front of you.

Trying to simply fly HDG mode.     Standby is stuck on at all times.   If I hit HDG mode it flashes "ON" but immediately turns off.   If I hold STANDBY all lights in the AP select panel light up.   If I hit AP button (with TURN knob in the center detent), only the YD ENGAGE lamp lights.  I also tried hitting HDG before engaging AP with no luck.

I guess next step is uninstall and re-install?

[meierzwo]

All Circuit Breakers are in? Reset all Failures?
With Avionics on, a preselected HDG Mode should stay on.
I think, you have a mismatch in your Keyboard or Joystick Settings. I use the Bravo Quadrant and the AP Command for the Push Button is "Servos Toggle".
It looks like there is a conflict with the Settings.
Start with a complete new Joystick Profile, assign it to the Moo and reset the Settings in this Profile for Joystick and Keyboard to Default.
It's always a good Idea, to leave the Default XP Joystick Profile untouched or only assigned with a few Basic Settings for the Flight Controls and copy them to a new Profile.
It's a bunch of work but you will have a clean Profile for any Plane and a changing for one Plane did not effect others.

Edited 1 hour ago by meierzwo