Help identifying this connector/ ac problem

2008 tacoma trd 4wd.
I popped off my glove box to check the cabin air filter and this connector was separated. I plugged it in and within a few seconds my a/c button starts blinking. When I unplug it, my ac button goes back to normal. I just had my compressor replaced (seized up & flashing light) and they replaced my control panel because the connector was burned up. The a/c seems to blow pretty cold with the ac on or off, but only while driving. At idle it doesn't blow nearly as cold. I replaced the blower resistor & harness a few years ago, if that matters. I'm mostly trying to find out what this connector is, but any other advice would be appreciated. Thanks in advance.

 

I'd take a stab in the dark that it's for the evaporator temperature sensor... cuz that's the only thing that really makes sense to me that would disable the AC with it plugged in (assuming it's faulty)

Vent temp warming up (some) while stopped & idling is sorta normal-ish for a belt-driven fan with a clutch, especially if the system is sized borderline too small. A bad fan clutch will make it worse. It's also a possible symptom of an undercharged A/C system, but hopefully that's not it since you just had the compressor replaced.

 

It’s hard to tell from your pictures.
It that 2 wires? Or one?

What colors are the wires?

 

BTW, White with a black stripe is usually ground. But I can help more if you get me the colors

 

It's two wires. 1 black, 1 creamy white. Solid colors both of them

 

I don’t see anything like that on the AC diagrams.

@Dm93 os about the only guy I know that might have an idea.


Either way, it obviously doesn’t like being plugged in.

 

Lol.

Funny. Lol. I couldn't find anything either. It didn't make much sense to me. Thanks for checking.

 

Pretty sure that's the connector for the Evaporator Temperature Sensor, as to why the A/C light blinks with it plugged in not sure but I would think the A/C Amplifier wouldn't even attempt to turn the compressor on with it unplugged.
Are you sure the compressor is running with it unplugged?

 

It's definitely running with it unplugged. It's been in the low-mid 90's the last couple days so it wouldn't be blowing that cold if the compressor wasn't running. The funny thing is that it runs cold whether the ac switch is on or off. I'm glad I'm not the only one confused by this. I was thinking maybe the ac relay has the compressor stuck on. I'm going to test the relay tomorrow.

 

That is the wire for the Evap Thermistor No1.

The A/C amplifier receives various signals, I.E., the engine RPM from the engine control module and coolant temperature from the engine control module, etc.
When the engine is started and the A/C SW (A/C control assembly) is on, a signal is input to the A/C amplifier. As a result, current flows from IG1 NO.2 fuse to TERMINAL 2 of the MG CLT relay to TERMINAL 1 to TERMINAL MGC of the A/C amplifier to GROUND, turning the MG CLT relay on, so that the magnetic clutch is on and the A/C compressor operates.

If the integration control and panel detects the following conditions, it stops the air conditioning:
∗ Evaporator outlet air temperature is too low.
∗ There is a marked difference between the compressor speed and the engine speed.
∗ The refrigerant pressure is abnormally high or abnormally low.
∗ The engine speed is too low.
∗ Rapid acceleration occurs.

 

^^^^ Wow! ^^^^