No A/C when key turned to accessory

[-Matt-]

Yep... no a/c when key is turned to accessory (just shows a blank screen)... only when clicked all the way to start/run

What do?

[justbob]

What good is the A/C with a blown engine Mr Matt..............

[MM_BKK]

A/C controls only works in the key on position and not acc.

[-Matt-]

A/C controls only works in the key on position and not acc.

Not true.......

[BAD MERC]

Wow, that's odd. I can turn my key back to accessory all day and listen to the stereo with the A/C blowing ice cold. I don't even need the engine running!! Are we having a reality lapse here?

[MM_BKK]

Not true.......

Then you must have a special modified wiring for your control that USED TO work in the accessory position.

They only work in the key on position from the factory. Every vehicles I have ever own or driven (Chevy, Pontiac, Buick, Oldsmobile, Mitsubishi, Jeep, Chrysler, Nissan, BMW, Infinity, Toyota, Honda, Ford, Mercury) never had the HVAC controls that worked in the key accessory position.

[MM_BKK]

Wow, that's odd. I can turn my key back to accessory all day and listen to the stereo with the A/C blowing ice cold. I don't even need the engine running!! Are we having a reality lapse here?


How can your A/C be blowing ice cold when your engine is not turning the A/C compressor?

[-Matt-]

Whenever i hit my autostart my a/c would always run... it doesnt anymore

[MM_BKK]

Whenever i hit my autostart my a/c would always run... it doesnt anymore

The "autostart". Remote start system I'm guessing?

That explained your special modified wiring .

[MrBluGruv]

I gotta chime in here, in my Marauder and back when I had a Galant both vehicles would allow controlling the A/C with just the accessory position set. Neither cars would allow these to work particularly efficiently, but they did work.

[-Matt-]

The "autostart". Remote start system I'm guessing?

That explained your special modified wiring .

No special modifying... when you turn you key, the first click fwd should turn on you a/c and radio

[MM_BKK]

I gotta chime in here, in my Marauder and back when I had a Galant both vehicles would allow controlling the A/C with just the accessory position set. Neither cars would allow these to work particularly efficiently, but they did work.

So you're saying you can have the key just in the accessory position and not ignition on and you're able to run your HVAC fan blower?

Do me a favor, can you please go out to your car and confirm this and let us know the make & model?

I had already been out to three of my vehicles a half hour ago ('03 Marauder, '07 G35x, '05 Explorer) and none of them are able to run the HVAC fan blower with the key in the accessory position. Only radio, windows and wiper.

[MM_BKK]

No special modifying... when you turn you key, the first click fwd should turn on you a/c and radio

The first click backward (CCW) is the accessory position.

When the "autostart" system was installed, the control box for it had to be wired in such a way that it's able to bypass power from the keyswitch to feed your ignition/engine running circuits so that it can supply power to the ignition, fuel pump, PCM, accessory and most importantly, HVAC controls without having to turn the ignition switch on.

[MM_BKK]

If you turn the key and you get dashboard warning lights on, that's ignition on and not accessory only.

[RR|Suki]

No special modifying... when you turn you key, the first click fwd should turn on you a/c and radio

one click forward is not ACC, one click back is.

[ctrlraven]

The first click backward (CCW) is the accessory position.

When the "autostart" system was installed, the control box for it had to be wired in such a way that it's able to bypass power from the keyswitch to feed your ignition/engine running circuits so that it can supply power to the ignition, fuel pump, PCM, accessory and most importantly, HVAC controls without having to turn the ignition switch on.
^This.

If you turn the key and you get dashboard warning lights on, that's ignition on and not accessory only.
^This.

[Zack]

HAHAHA lot of :rofl: in this thread

[BAD MERC]

How can your A/C be blowing ice cold when your engine is not turning the A/C compressor?



That was the joke-

[MM_BKK]

That was the joke-

I didn't realize this thread was a joke. Shouldn't it have been in the Joke of the Day thread? I thought the OP was looking for technical advice. Wow! You're hilarious!

I just LMFAO! :laugh:

[CBT]

Monday morning humor, lol.

[-Matt-]

ok... well either way when i used to remote start the a/c would work... it no longer does untill i get in and turn the key. Ill have to see if its an alarm thing.

Oh and i ment one click back