Having trouble with the climate controls in the 80, Aussie VX model with the auto button in the centre of the switchboard and Auto ECU under the dash, recirc doesn't seem to do anything, stuck in recirc mode. Not the worst problem to have, but I hate having anything not working regardless of using it or not.
I've tried setting the switch to Manual instead of Auto on the back of the switch, that gets the switch to change from fresh to recirc fine, lights work etc, but doesn't actuate the servo. In auto mode the switch will stay depressed but the light doesn't change. In either mode the servo doesn't get a different signal when the recirc button is depressed, constant 12v at the yellow power wire and solid blue wire, nothing changes so I'm guessing the servo is fine.
At this point I've still got to test the servo by jumping the trigger wires, not too well versed on how servos work but I'm assuming the blue wires trigger the servo to rotate to either limit.
Read a lot about leaky windshields damaging the Auto AC ECU, this shell sat in a field for a little while with the windows down before I found it, so water damage is possible, but everything else seems to work fine. Looking at the EWD I don't think having the switch in manual mode will make any difference if the ECU is damaged, I'll post some photo's the relevant diagrams later.
Worst case I'll need to fix the ECU or bypass the recirc wires, or is there something I'm missing?
I've tried setting the switch to Manual instead of Auto on the back of the switch, that gets the switch to change from fresh to recirc fine, lights work etc, but doesn't actuate the servo. In auto mode the switch will stay depressed but the light doesn't change. In either mode the servo doesn't get a different signal when the recirc button is depressed, constant 12v at the yellow power wire and solid blue wire, nothing changes so I'm guessing the servo is fine.
At this point I've still got to test the servo by jumping the trigger wires, not too well versed on how servos work but I'm assuming the blue wires trigger the servo to rotate to either limit.
Read a lot about leaky windshields damaging the Auto AC ECU, this shell sat in a field for a little while with the windows down before I found it, so water damage is possible, but everything else seems to work fine. Looking at the EWD I don't think having the switch in manual mode will make any difference if the ECU is damaged, I'll post some photo's the relevant diagrams later.
Worst case I'll need to fix the ECU or bypass the recirc wires, or is there something I'm missing?