Solenoid is a relay in an air conditioner it is called a contactor. An electric field is used to move a lever.
Dead battery.

 

What?

"Solenoid

noun

so·​le·​noid ˈsō-lə-ˌnȯid
ˈsä-
: a coil of wire usually in cylindrical form that when carrying a current acts like a magnet so that a movable core is drawn into the coil when a current flows and that is used especially as a switch or control for a mechanical device (such as a valve)"
*edit: there are varying definitions, technically some definitions are just that it is the coil that generates a magnetic field. The above definition better describes a solenoid motor.*
"Solenoids are a specially engineered electromagnet in which a coil of wire is wrapped around a specially shaped core made of steel or iron..."


also...
https://shop.advanceautoparts.com/fi...rlock-solenoid

The shifter solenoid is an electromagnet whose moveable core blocks the shifter from moving when powered. It should only be powered in park, key on (or vehicle running), when the brake is not pressed. *edit: might be the opposite, powered on to release.*
Technically... all relays use an electrical coil as part of the electromagnet, and therefore are solenoids...

I concur it is most likely the battery is too weak. Testing it tomorrow. Also going to check fuse box, wiring etc etc as needed.

 

Yes, and the difference being? Sometimes used for different purposes.
https://www.midwestequipment.com/pos...current%20load.
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relay

1 of 3

noun

: an electromagnetic device for remote or automatic control that is actuated by variation in conditions of an electric circuit and that operates in turn other devices (such as switches) in the same or a different circuit

 

A relay is a devise that uses a low power circuit with a coil to turn on a higher power circuit. A solenoid is a coil operated devise that performs a function.

 

Yes, and when a relay is used for machine control logic, the power need not be greater, and a solid state relay has no solenoid.

Instead of worrying about semantics, get a new battery in it. Even if it ain’t the battery, you’ll have a nice shiny new one, and eliminated all doubt.

 

Sidetracking doesn’t resolve the issue, it just delays the process of fixing the problem

 

I'm not aware of any that has a solenoid. They both have a coil the difference is the coil in a relay uses it's magnetic properties to pull down a switch which powers another circuit. In a solenoid the magnetic properties are use to move a core that rides inside the coil ring.

 

Let’s keep on track with this problem, low battery voltage seems to be the root cause here. Rocket, any progress on that load test?
In post #10 you mentioned 11 or so volts, so dead battery

 

Well now... technically a solenoid is any wire coil that induces magnetism... but let's stop there...

A "Fresh" battery has solved most of the issues. But I did something immensely evil. I modified the vehicle to accept a series 75 battery... because I have at least 4 of those on tenders not being used. Don't worry, the modification can be undone.

Auto lock/unlock, cruise, manual downshift have returned to normal. Have not checked autostart or shift solenoid, I only did a quick drive and have not had much road test time.

The only issue remaining is I suspect the TCC might not be working, Is 2600 rpm at 70 mph reasonable? That's about 116 km. I could get a more accurate number with a scanner later.

I did notice that car struggle more that I remember on the 600 mile christmas trip when it hit grades. Probably was having a problem then too...