are you getting the change in voltage at blue/white? and orange/blue, when you dissconnect the temp sensor and wait 12sec, plus 6sec
just checked my wiring diagram,
blue/white is signal from ecu
so with no highspeed fan on it should be at 13v
with high speed fan on it goes to -0.22v
and orange/blue is power to highspeed fan so basically,
no fan no voltage
highfan ON, 13v
just checked my wiring diagram,
blue/white is signal from ecu
so with no highspeed fan on it should be at 13v
with high speed fan on it goes to -0.22v
and orange/blue is power to highspeed fan so basically,
no fan no voltage
highfan ON, 13v