y31 cima airbag susp. not working

hi guys got a y31 cima and cant get the airbags to go up or down. ive checked the 2 fuse in the engine bay and theyre fine. air susp. is all stock and no aftermarket controller fitted.

are there 5 air compressor on the y31? 1 in the engine bay next to fuse box, 1 under the front left gaurd, 1 under the front right guard and 2 at the back near the diff?

i can get the engine bay one to come on if i release air out of the little schroeder valve on top but thats about it.

any ideas?

Check with a volt meter at the motors of each compressor to see if they're getting power. If not, you're gonna need to trace back where there main source of power is. 
You sure they're 5 compressors?? Damn, that's a lot

i think it has 5 compressors, 4 with air tanks on them