Electrical Issue 2006 V70

[carm1987]

I am totally losing my mind looking for the 60A fuses in the engine compartment, nor can I find mention of them in the wiring diagrams for the 2006 V70.

[firstv70volvo]

I am totally losing my mind looking for the 60A fuses in the engine compartment, nor can I find mention of them in the wiring diagrams for the 2006 V70.

Those fuses are not the typical removable, replaceable type, they are underneath the engine compartment fuse box and I've never read anything about these fuses ever blowing. This is based on my 2002 wiring diagram but I would expect later models have these fuses too.

60A fuses under engine compartment fuse box.jpg (102.29 KiB) Viewed 301 times

Is fuse 24 olay, if so is there 12V on both sides of the fuse (fuse plugged in) with the ignition on?

[carm1987]

Only had a few minutes to look last night. There are only 12 fuses in the fuse panel at the end of the dashboard. There is another one from 2005 on that is under the steering column. According to the wiring diagrams it caonations fuse #10 and provides power to the power seat, sunroof intsrument cluster. I will leave work earlier today and get acces to that and check it. BTW I chaecked all fuses 1) at the end of the dashboard, 2) in the cargo compartment (drivers side), 3) the 50A fuses in the rear (mounted next to the rear-mounted) battery. BTW I did see a video on You Tube that showed the 60A fuses that you mentioned that are mounted under the fusebox in the engine compartment. as well as chckin all of the fuses in the engine compartment as well as swap relays where possible. I know we used to call that easter-egging. BUT I belive that Fuse #10 behind the steering column would be a likely candidate. But I still have the window open and locking issue. I would be surprised if one single fuse could cause all of this. Thank you!

[firstv70volvo]

Only had a few minutes to look last night. There are only 12 fuses in the fuse panel at the end of the dashboard. There is another one from 2005 on that is under the steering column. According to the wiring diagrams it caonations fuse #10 and provides power to the power seat, sunroof intsrument cluster. I will leave work earlier today and get acces to that and check it. BTW I chaecked all fuses 1) at the end of the dashboard, 2) in the cargo compartment (drivers side), 3) the 50A fuses in the rear (mounted next to the rear-mounted) battery. BTW I did see a video on You Tube that showed the 60A fuses that you mentioned that are mounted under the fusebox in the engine compartment. as well as chckin all of the fuses in the engine compartment as well as swap relays where possible. I know we used to call that easter-egging. BUT I belive that Fuse #10 behind the steering column would be a likely candidate. But I still have the window open and locking issue. I would be surprised if one single fuse could cause all of this. Thank you!

One fuse, one relay or one bad contact could easily cause all this if the EXT D1 supply voltage is missing to all these modules. The modules you're having problem with all have the EXT D1 supply in common.

[BlackBart]

Instrument cluster DIM...??

[carm1987]

No....not on at all.

[firstv70volvo]

No....not on at all.

You can see here the DIM power is through fuse 24 and a relay controlled by the CEM. This is the only power that I could tell from the wiring diagram to the DIM and why I suggested you start here first. Fuse 24 is the easy place to start and yes there can be other problems such as the relay, CEM or DIM modules. Check out the basic stuff first. It would be good to know if power is reaching the DIM module. I also mentioned the other modules with EXT D1 power suppy.

DIM power EXT D1.jpg (60.2 KiB) Viewed 260 times

[carm1987]

OK..thank you. In the 2006 V70 the Instrument Panel gets power from fuse 10 located under the steering wheel. I only have 12 fuses in the panel on the left side of the dashboard (Fuse Panel C). However, I went nuts and checked every single fuse on that car (A and B in the engine compartment, C – Left Side of Dashboard, the fuse panel mounted to the CEM (mounted behind a plastic cover right above the pedals) Rear Fuse Panel also. All fuses were good via a check of resistance, and all had 13.2VDC applied. Now this is strange during my investigating I randomly tried to work the electric seat, power locks, sunroof, and ac blower. The seat worked for a few seconds, the locks as well, and even the sunroof moved. However, none of those systems work now and I have a sunroof stuck open. None of those systems are working now along with the inoperative instrument panel (DIM). I will keep looking, possible relay? Thanks again for the help!

[firstv70volvo]

OK..thank you. In the 2006 V70 the Instrument Panel gets power from fuse 10 located under the steering wheel. I only have 12 fuses in the panel on the left side of the dashboard (Fuse Panel C). However, I went nuts and checked every single fuse on that car (A and B in the engine compartment, C – Left Side of Dashboard, the fuse panel mounted to the CEM (mounted behind a plastic cover right above the pedals) Rear Fuse Panel also. All fuses were good via a check of resistance, and all had 13.2VDC applied. Now this is strange during my investigating I randomly tried to work the electric seat, power locks, sunroof, and ac blower. The seat worked for a few seconds, the locks as well, and even the sunroof moved. However, none of those systems work now and I have a sunroof stuck open. None of those systems are working now along with the inoperative instrument panel (DIM). I will keep looking, possible relay? Thanks again for the help!

When things starting working again did the DIM come back to life too? What exactly were you doing when things started working again for a short time? Engine running, key position...?

The relay in the path of EXT D1 power for cars up to 2004 is a removable and replaceable relay, your car may be a solid state relay in the CEM that's not replaceable. It would helpful to know if the EXT D1 power is getting to the modules and I think the best place to measure this voltage is at the power seat module. I'll see if I can find what connector and pin.

For the driver's power seat module the EXT D1 power comes in on the B connector pin 1.

driver's power seat module.jpg (47.19 KiB) Viewed 239 times

[carm1987]

Well upon inspection I noticed there was a couple wires under the driver's seat which had copper exposed. I'm not sure how that happened. However I isolated the copper by wrapping the wires with electrical tape separating them. I then stuck the key in the ignition and everything came back to life when I started the car. The AC worked, the windows worked, the DIM came back to life, and I was able to close the sunroof. I don't understand how these wires caused all these problems. However Then then a new problem began. As I sat in the car with the car running trying to comprehend what just happened, the car stopped running. The seat of locks the windows the sunroof all still work, however the car will not start. It turns over for a couple seconds and then like disconnects. I will not be near the car until Sunday. I feel like I'm back to square one. I did notice that while troubleshooting earlier I don't recall the radiator fan coming on. However when everything came back to life I noticed the fan was running. Is it possible that I had an overtemp condition causing the car to shut down? I tried again this morning before going to work and the car will not start. I will have to check other things on Sunday. Thanks once again for your help.