Over the last 3 years I have battled on and off with the Toyota Stepper IAC........ Always coming out second best. So out it went and in went a generic 2 wire IAC valve.
Like any good race car/truck owner I left it until the day before the next event to connect it up. How hard could it be.........
Shell we say the 1/4" BSP ball valve is doing a great job for now And is out competing today
I have 12V on one terminal.
I have the other terminal connected back to the IDC pin 37
Checked with My multi-meter
Set to PWM open loop 2 wire, 120Hz.....
Played with all the Cranking and running settings.... and cannot get more than 200mV (sh) across the pins, possibly just noise.. While cranking (in flood clear mode so it will not start) set at 0%....50%....100%....... no difference
Almost like the pin has been assigned another task and set to off.
Firmware 2019/03 - I know not the latest version but my old laptop is all but dead, one usb still working, no WiFi....... I am getting another one ready.... but not quite ready yet.
Pre assembled V0.4.X board from Josh in Australia.
I still have the stepper driver plugged in. Is this likely to cause a problem.
Is there an easy way to test, or find out what the pin assignments are (in case it is doubled up). My next place to look will be checking the Mega pins and voltages on the speeduino board. after the weekend when the truck is back.
Thanks in advance. StuM