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Location/Diagram of Relays and Modules for '02 S80 T6

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Location/Diagram of Relays and Modules for '02 S80 T6

Old 05-20-2015, 01:55 PM
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Join Date: Jan 2009
Posts: 19
Default Location/Diagram of Relays and Modules for '02 S80 T6

I have a 2002 Volvo S80 T6. I recently jumped my battery using a commercial battery charger. I used the "start/jump" setting, which put out 225 amps. When I started the engine (with the charger still connected), I heard a loud noise coming from my speakers (not the radio, as it was off) and then the noise went away and a Voltage Overload message showed up on the dash. Now, my headlights don't come on at all, and neither does my radiator fan. I checked the headlight fuses and they are both intact, but neither side of the fuse causes my test lamp to illuminate. A friend told me that this means the power is cut off before it even gets to the fuses, so something is blown further up the line (before it even gets to the fuses). When we linked power directly from the battery to the fuse, the headlights did in fact work, which leads me to think that there's a blown relay, module, or fusable link (not sure if Volvo uses those).

However, I can't locate a diagram of the relays in the trunk, nor any of the modules. Where can I find diagrams, so that I know which ones operate the lights and/or radiator fan?? Thanks.
Old 05-20-2015, 03:25 PM
Join Date: Mar 2012
Location: Ridgefield, CT
Posts: 4,675

volvowiringdiagrams.com will have a complete PDF of all the wiring
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