I dont have my manual right in front of me, so I cant give specific information but I can get you started.
I am having cooling issues with a 98 Breeze I am chasing down as well at this moment.
You didnt note if the fans work when the engine is hot.
There should be a 40 amp fuse under the hood in the power distribution block. You said it was good, but just checking.
There may be 2 relays - a high speed and a low speed. Both my relays are identical, so I swapped them with each other for testing reasons. The relays should be close to the power block under the hood. On my breeze, they are located above the power block under a seperate lid.
My cooling fans were not working at tempature, but they did work when the AC was turned on.
If your cooling fans are not working at all, you need to test the fans by jumping them with 12volts to see if they are in fact working.
Disconnect the harness on the wires going down to the fans.
On the fan side of the harness (the male terminals), you may have 3 or 4 wires. 2 should be colored, and the last one (two if a 4 wire) should be black.
Using a fused jumper wire, you need to put 12 volts to one of the colored wire terminals while grounding one of the black wires.
Make sure your fingers/hands are clear of the fans!]
You should use fused jumper wires as you do not want anything shorting if you accidently ground the hot jumper wire, or if the fans have an internal short you may not know of.
(I used wires with my portable 12v jump pack as I know it is short circuit protected. :Wink: Any short of the cables and it turns off)
Test the fans first, even swap the relays if they are the same and try running the AC to see if the fans come on. I think it would be odd for both relays to fail at the same time, so unless they both are bad, the fans should come on when the AC is engaged unless the fans are bad.
If the fans work, it may be the relays, fuse, coolant temp sensor or even the pcm.
I have the relay testing method, but the manual is at my shop.
Ill post the testing method tomorrow night, as the relays should be the same.
Thursday, August 24th, 2006 AT 6:27 PM