Wire Color codes -Green Books - 89-780

Hi "AJ",

Re the Volvo wiring colour codes:

BL = Blue R = Red BN = Brown SB = Black GN = Green VO = Violet GR = Grey W = White OR = Orange Y = Yellow P = Pink

True for the 240 series up to 1986, but I'm pretty sure it will work for your '89 780.

Good Luck. Andy I.

Well a short to ground can only be one thing - incredibly low resistance. Everything else is a resistive load... You could have a low resistance resistive load between positive and negative (chassis ground). This is the most likely cause of the battery drain, something drawing too much current.

another thought - check the door switches and courtesy lights. I had a bad door switch that caused my courtesy lights to stay on after the doors were closed - result, dead battery in a matter of hours. If in doubt, pull the fuse.

cheers! steve

Thanks everyone!

I removed the radio/equallize. That may have been where my problem was. We will see. I do not drive it much in the winter. Just play with it. This year I will put in a new sound system. One of the POs had a changer put in at best buy and they really messed up the wiring.

AJ @ Home in Wisconsin