Blend door actuator?

If the new actuator is doing the same thing, I question the power supply. Have you checked to see what voltage is going to the actuator? Check out the diagrams (Below). Please let us know what you find.

Where do I check power supply. The other actuators work fine.

I know I can check it at the disconnect bot I don't know where it gets its feed

Check power supply where it connects to the actuator.

If the 12V is low there, where does come from

The power comes from the HVAC control module. There should be a tan wire and a Lt green wire to the actuator. To open the door, power is supplied through one wire. To close the door, the HVAC control module reverses polarity to the actuator.

This problem is really confusing: When I unlock the door with the key, not using the fob, the actuator starts to chatter and stops after about 10 seconds.

It will also start to chatter again periodically. I've got all of the driver's door, radio, instrument cluster electrical connections all disconnected.

There is only one hot wire on my climate control connection, orange. I tried to check continuity on the pin connections on the climate control panel, slide switches for going from hot to cold, and got nothing. I presume the slides are some type of resistance circuits. I do have continuity from the actuator and the climate control harness connector wires.

Wow! I think you need a priest with this car. lol Listen, I would think there is a ground problem or the body control module is going bad. Check grounds first.

The temperature door stays in the cooling mode.
What is the body control module.

Basically, a body control module is a generic term for an electronic control unit responsible for monitoring and controlling various electronic accessories in a vehicle's body.

I am buying a new body control module and will have it flashed.

There are several electrical issues with my car:
1. radio speakers in the rear work, but volume is low and speakers in the front don't work.(no corrosion on orange speaker wires by back seat).
2.Key fob won't program.
3.Passenger side temp. actuator chatters as noted in our chats.

They can be expensive, so you should confirm your's is bad before just replacing it. The radio issue sounds like the problem is in the radio not the BCM. The other things could be related.

$105 for the new module and $100 to flash it.

The radio has power and everything works other than sound. The program mode come up like it's supposed to but it won't flash, Press FOB command is supposed to flash in order to program the FOB but, it doesn't.

Why would the back speakers work, faintly, and the front won't if the radio was bad?

Doesn't the BCM have something to do with the radio and HVAC control panel?

Supply power? yes, but it doesn't make it function. Often times when this happens to a radio, either there is a wiring issue but more often, the amp in the radio is bad.

I've tried almost everything?

One issue that I've found is that I can shift out of Park without pressing on the brake but only if the ignition switch is in Acc or On position. I disconnected the 2 switches and can still shift out of park??

Should I remove the console and check the solenoid by the shifter or is there a solenoid there? Could this be the source of my problem??

Steve

The shift lock solenoid receives power from the brake light switch. Are the brake lights staying on? If not, there either there is a short to power or something isn't together properly.

I found my problem with the new temp selector actuator!! I cut the wires from the bad actuator control panel and spliced in the connector to the drivers side actuator and it worked just fine. The problem was the actuator they sent me was defective also. Too many hours trying to find a ground issue. I gave Rockauto hell and they're sending me a new one.

Still have radio issues and shifter problem but I'll work them out. Thanks for your help.

Steve

Now I'm not sure if I found the problem or not!!!

What tells the actuator motor to shut off . I plug it in and it runs continuously in either direction depending on where I slide the temp resistance slide switch.

This is with the actuator removed from the damper. Does the actuator motor keep it's 12V feed on all the time depending on the temp setting? I would think that this would eventually break the damper shaft?

I can move the damper by hand and let go of it and it always falls closed or possibly open.

I don't know if it's falling closed (open) to allow heat or falling closed (open) to allow air conditioning?

Actuator removed from damper? The voltage won't change if the part is removed. Is that what you mean?

The actuator is hanging by the wires. The motor continues to go forward or reverse continuously depending on which way I move the slide ( heat to cold or cold to heat)

Does the actuator keep torque on the damper whichever position it's in (heat or cold) ?

It should otherwise the door would be free to move.

If the actuator drives both ways as it should, the why won't it go to heat when I put the actuator back on the damper shaft and slide the control to heat from the cold position?

Could the damper position ( when the actuator is removed) be in the wrong position when the actuator is installed?

Some how I think we're getting confused as to we're communicating to each other.

my chevy impala will only blow air from floor no matter what setting the dial is on.i did replace the blend door actuator but still no luck.the heat and a/c does work but comes out of the floor.any advice will be greatly appreciated.thanks.jeremy.

I haven't looked at your hvac system yet? Are your actuators electric? Did you check voltage and ground at the actuator if electric? Give me a second to look up your system.

This is for manual hvac. Have to check vacuum or actuator. Used to if vacuum failed, it would default to defrost.

Bi-level mode.

Vacuum is applied to mode actuator through the brown and blue vacuum lines. And to the defrost actuator through the red vacuum line. Applying vacuum to both side of the mode actuator will hold the vent door stationer in the half open position. The defroster actuator will retract, closing the defrost door and open the heater door through mechanical linkage.