So, Relay 40 is the "ac blower relay" that Bentley Specialists is referring to? I can't seem to get more than 6.6 volts to my blower motors. This relay is energizing, and so are the 41-44 relays.
If the 44 relay is energized and that is supposed to send "12V directly into the blower motors", and at the same time the 40 relay is energized that is supposed to have "the highest resistance (and thus greatest voltage drop) to the two blower motors", then which is it as both are energized? Highest resistance or full 12 volts.
Also, on the 41-44 relays, I notice I can get 11 or 11.5 volts at the 87 terminal, but only 9 volts at the 30 terminal (or vica versa if I'm misremembering).
Would all that depend on the 40 Relay not sending through full voltage because its defective? In other words, I'm trying to figure out the direction of the power flow to the blower motors.
Does the source voltage start at the 40 relay, than that goes on to supply the source voltage for relays 41-44? (or is it the other way around?)
Another odd thing that might show that I'm misunderstanding this, or that it is the other way around - when the car is running, and the A/C is OFF, I can pull relays 41-44 and get voltage (I should have tested how much, I just used my test light that time), on either the 85 or 86 pin (I forget which).
If you are able to clarify this for me, that would be much appreciated, as well as being sure the resistor block is not the issue (I tested this for resistance, and with the meter set on 200, I put the black lead on the left pin of the top three, then touched each of the 4 remaining pins on the plug. I got 0.6, 2.2, 0.3, 1.2.
I guess my question is also, which is the first, simplest thing to try, or relay to replace that would be the source of my blower motors only staying at 6.6 volts? Relay 40?