I've been wondering for a while when this pump actually runs. I have noticed that if I turn on the A/C the engine temp drops down from 90 to 85 so I always assumed that the cooling pump only runs when the A/C is on.
However I've read that some people say it runs after turning the car off?
So I decided to dig around at the wiring diagrams in TIS and was surprised to see that the relay for this pump is separate and not part of the cooling module like I was expecting.
It seems that the relay gets a signal from the ECU which is related to the A/C so it would seem my initial suspicion may be correct.
Has anyone tested to see exactly when this pump runs?