Hi,
I seem to be having a little overheating issue with the car when I run my A/C on a hot day. So after doing some research I am leaning towards the CCRM is not getting a signal on pin #17 when the A/C is turned on. I went out to the car and with the car running and the A/C running the high speed cooling fan was not on, although the low speed fan will eventually turn on. Additionally there was no continuity to ground when I back probed pin #17 on the CCRM connector. So my question is as follows: Is the high speed portion of the cooling fan supposed to come on as soon as the A/C is turned on, or does it only turn on when the Freon reaches a certain pressure, or coolant reaches a certain temp?
I know that my high speed circuit does work, because it comes on when I run a KOEO diagnostic, and it will come on when the motor gets very hot without the A/C on, but I have never seen it on when I run the A/C no matter what temp I am running at.
So do I actually have a fan issue since the high speed does not turn on as soon as the A/C compressor engages, or is the fan operating as it should?
Thanks,
Mario
I seem to be having a little overheating issue with the car when I run my A/C on a hot day. So after doing some research I am leaning towards the CCRM is not getting a signal on pin #17 when the A/C is turned on. I went out to the car and with the car running and the A/C running the high speed cooling fan was not on, although the low speed fan will eventually turn on. Additionally there was no continuity to ground when I back probed pin #17 on the CCRM connector. So my question is as follows: Is the high speed portion of the cooling fan supposed to come on as soon as the A/C is turned on, or does it only turn on when the Freon reaches a certain pressure, or coolant reaches a certain temp?
I know that my high speed circuit does work, because it comes on when I run a KOEO diagnostic, and it will come on when the motor gets very hot without the A/C on, but I have never seen it on when I run the A/C no matter what temp I am running at.
So do I actually have a fan issue since the high speed does not turn on as soon as the A/C compressor engages, or is the fan operating as it should?
Thanks,
Mario