2000 s70 GLT accessory circuit losing power

[rdupont714]

The blower motor, radio, windows, sunroof, SRS system, locks are not working. I replaced the ignition switch but nothing was fixed. I have checked all fuses. Is there anything else that I should check? Any help is much appreciated.

[BEJinFbk]

Next step - Ignition overload relay 105 ( AKA 2/30 ).

Screen Shot 2014-11-24 at 7.57.46 PM.png (84.45 KiB) Viewed 519 times

You may have sticky relay contacts. You can temporarily
swap 105 with relay 106 to see if that solves your problem.

[rdupont714]

That did not work. Any other suggestions??

[scot850]

Have you checked the B+ cable in the main fuse box? This is a real problem on 99/00 V and S 70's. Open the top of the fuse box in-front of the brake booster in the engine compartment and look down at the cable at the front RH corner (LH when viewed from front of engine compartment). There is a nut holding it in place. If it is copper/brass colored all is probably well. If it is dull and or black it is close to shorting out and can start a fire. I was lucky as I caught it before any harm was done, but when I removed the cable from the fuse box it was badly burnt and the plastic coating was melted. It could easily have shorted out.

Neil.

[Rbaratt]

See if you have power at pin 1 of the overload relay socket. If not check fuse 11A/2 and for continuity between fuse 11A/2 and pin 1.

[Rbaratt]

Also if I am reading the schematic correctly (and I may not be!) I think you should have power to pin 2 when the key is in position 2. When pin 2 is powered it activates the overload relay which allows power to pass from pin 1 to pins 5 and 3. The Y-VO (I think that means yellow violet) wire to pin 2 comes from the ignition switch (pin 6?)...I know you replaced the ignition switch, check the connections if you don't have power to pin 2.

[Rbaratt]

Radio Circuit