89hatchieaccord
12-26-2016, 01:59 PM
89 DX hatchback manual, carbed
Ok so I caused a short when I accidently bridged something on the combo switch with a screwdriver (saw a spark). Replaced blown 40a headlight fuse but still had electrical problems. Brakes shut off radio, clock/overhead light dims with turn signals, headlights wouldn't flip up together. Was screwing with the knob trying to get both headlights up and had some smoke and burning plastic smell from the dash. It wasn't a lot but enough to make me worry. Borrowed my neighbor's multimeter and found 0.36a parasitic draw tracked down to #4 fuse for the brake lights and horn. Fuse good. Testing combo switch and everything was fine except I was not getting continuity on the turn signals when the hazard switch was in the off position. When I sparked it with a screwdriver, it was on the turn signal side of the combination switch. Not really sure where to go from here. I think I should probably test the brake light circuit failure sensor but I don't understand what the shop manual says to do. I'm learning as I go and on a tight budget so I can't just start replacing parts until it works. Trying to get an accurate diagnosis before buy parts. Thanks!
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Ok so I caused a short when I accidently bridged something on the combo switch with a screwdriver (saw a spark). Replaced blown 40a headlight fuse but still had electrical problems. Brakes shut off radio, clock/overhead light dims with turn signals, headlights wouldn't flip up together. Was screwing with the knob trying to get both headlights up and had some smoke and burning plastic smell from the dash. It wasn't a lot but enough to make me worry. Borrowed my neighbor's multimeter and found 0.36a parasitic draw tracked down to #4 fuse for the brake lights and horn. Fuse good. Testing combo switch and everything was fine except I was not getting continuity on the turn signals when the hazard switch was in the off position. When I sparked it with a screwdriver, it was on the turn signal side of the combination switch. Not really sure where to go from here. I think I should probably test the brake light circuit failure sensor but I don't understand what the shop manual says to do. I'm learning as I go and on a tight budget so I can't just start replacing parts until it works. Trying to get an accurate diagnosis before buy parts. Thanks!
Sent from my SAMSUNG-SM-G930A using Tapatalk