95 cobra , code 564 , help ?

2002BLGT

Well-Known Member
Dec 18, 2003
2,945
4
59
Bedford VA
I have done pinpoint test and I get to a point where its telling me to replace PCM , well I did that and guess what , still no fan , all wiring between PCM and CCRM is good , CCRM is new , PCM is new well (remanufactured)

I run pinpoint test with new PCM and says replace PCM , what are the chances I have 2 bad PCMs ?

Anybody got any ideas to check next , I am getting no other codes , should I try another PCM ? I dont know what else to check
 
i have the same thing going on with my 95 gt code 564 low fan circuit relay and i have bought a ccrm with no change. from what it is looking like it might be a bad ecm. i'll have an answer by friday. hope this helps
 
Let me know what yours turns out to be

So i checked all the grounds on the car, wire brushed and found the ground on the left side in front of the battery was striped. reground that and pulled the connector to the fan motor, sprayed it with some brake parts cleaner. connected everything back and VOILA!!! no check engine. hope this helps