It is possible that jumping the wrong pins could cause a problem. Check all the fuses just to be sure some fuse didn't blow.

 

I've check all the fuses and relays more than once, even put new ones in just to make sure.

 

I think that the problem is either the thermostat, the a/c switch, the blower switch, or the wiring.

Since the ground reading on you meter is not reliable, lets do the grounding tests like you did on the a/c pressure switch.

With the ignition switch turned off, unplug thermostat connector and leave everything else plugged in. Ground the blu/yel wire on the thermostat electrical connector. Start the car and see if the a/c turns on and the working fan.

Next test would be the same as above, but only unplug the a/c on/off switch. Ground the blu/red wire. See if a/c and fans turn on.

Next would be the electrical connector for the blower switch. Ground the green wire.

 

I'll try that when the car gets home and let you know what happens.

 

OK Grounded the blu/yel wire on the thermostat electrical connector, everything kicked on.

a/c on/off switch, tried multiply grounds not very many places in all that plastic, but did nothing.

know what?

 

As long as you were trying to ground blu/red wire, then your thermostat is bad. You will likely have to replace the thermostat. First inspect the wiring for a pinched wire where the sensor part goes inside the evaporator.

You will have to open up the evaporator housing to remove the sensor part of the thermostat. I don't know if you have to evacuate the system and remove the entire evaporator to do this. I sent TexasHonda a PM to see if he has ever replaced it without evacuating the a/c system.

 

Who would sell that part and I don't it's possible to get it out without taking it apart, at least I know how, had it out twice already.

I also pm that guy about this tread with no response yet.

 

I know for sure that you can replace the a/c thermostat by evacuating the system and taking apart the housing. Some a/c shops will collect R134a and give you a receipt. You may want to call around. I don't know what this would cost you in the end.

You might be able to take off enough screws and clips on the housing to pry up on the housing, so you can remove that sensor from inside. That is something I have not tried.

As for a replacement part, the OEM part number is 80430-SV4-003. They will be 78 at the dealership. The online parts stores sell them for $56 plus shipping. A used one at a junkyard would be pretty inexpensive. I don't know if you have a pick and pull nearby.

 

is it the same part for the V6 and 4 cylinder?

also I'm going to try this test when I get it out.

dip probe into ice water

temp down 36-39 light off
temp up 39-41 light on

 

It is the same part.