Hi All,

Im new to this forum and im new to my"new" manual Volvo S70 T5 1998. I tried the search function and was not able to find anything on this...To keep it short... Fuse #29 (Rear demist, Power Mirrors, Bulb Failure sensor, Shift lock, Cruise control. Seat belt reminder, siren) keeps blowing when i change it. (10AMP).
Im not sure where to start to look for problems. I was told it could be some old damaged wire.
Is there a way to test and find which one of the listed items may be bad?

For those who wonder.. i got the car from my mom for free it has about 277750 miles and runs really well, except those few issues im trying to solve. (bad fuse#29, upper engine mounts, O2 sensor, ECT sensor, thermostat, ABS-TRACS, etc) but the fuse issue is a head scratcher... any advice is much appreciated.

Thank you all for spending the time reading this.

Vinny

 

I have an older factory wiring diagram from a 95 Volvo 850. They are basically the same car except in the 850 wiring diagram fuse 28 not 29 controls what you are having issues with. It is 2.6MB so I cannot attach it but if you are interested let me know and I can e-mail it to you. OTherwise I would ask your mom if she had issues with any of the systems before you got the car. Outside of that, the only advice I have it to look for obvious shorts to ground, bad/pinched wiring, or unplug each item (defogger, cruise control, etc).....one at a time to see which one is causing the fuse to blow.

 

I think you just have to unplug everything in that circuit the best you can and inspect. No easy way. You do need a wiring diagram. I have one, and so it must have come from volvowiringdiagrams.com, but I don't find it there now.

The volvo wiring diagrams are hard to read.

 

volvowiringdiagrams.com is defunct :-( but there are other sources - I like Volvotips.com for the 850 (including the wiring diagram)

 

Thank you all for the replies. Guess ill have to take the car apart and just find that short...

 

Let us know if you need anything, maybe we can help.......