Volvo S70 Made from 1998 to 2000, this sporty model replaced the 850 sedan and instantly became a hit.

1998 s70 A/C only works when bypassing fuse

  #1  
Old 08-04-2016, 07:25 PM
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Join Date: May 2009
Posts: 15
Default 1998 s70 A/C only works when bypassing fuse

1998 s70 here quit blowing ac. Found 10 amp fuse blown and replaced also the icecube (relay/fuse)

still nothing.
Bypassed the pressostat plugin (or low pressure) still nothing. have 12v going to plugin..

replaced the pressure switch down there by the light
still nothing

bypass the icecube relay in the fuse box and voila! I check check pressure at about 45.psi

any ideas? ---maybe the pressostat? ecm?

thanks
 
  #2  
Old 08-04-2016, 09:44 PM
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Join Date: May 2012
Location: Kingsport, TN
Posts: 1,513
Default

I did not look at the wiring diagrams on this one. Too lazy. If the relay is just there for the ECM to cut it out, you need to figure out why the ECM would be doing that. Might be a good reason.
 
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