Electrical problem with my 2001 Hyundai XG300...?

[Daniel L]

I just replaced the input speed sensor because my car kept going to safe-mode (won't shift out of 3rd) and this fixed it. Today while I was driving it, my battery light and parking brake light came on. After this, the car started shifting weirdly, and the TCS and ABS lights came on, the tachometer stopped working, and the speedometer stopped working. Then my car died. I got it towed back to the house, and an hour later, the car started up again, but the battery and parking brake lights are still on. Something is sucking the battery dry, but I have no idea, and I don't know why the tach and speedometer would stop working. Any ideas?

[thezax]

I just replaced the input speed sensor because my car kept going to safe-mode (won't shift out of 3rd) and this fixed it. Today while I was driving it, my battery light and parking brake light came on. After this, the car started shifting weirdly, and the TCS and ABS lights came on, the tachometer stopped working, and the speedometer stopped working. Then my car died. I got it towed back to the house, and an hour later, the car started up again, but the battery and parking brake lights are still on. Something is sucking the battery dry, but I have no idea, and I don't know why the tach and speedometer would stop working. Any ideas?

On my side the problem start with the anti-theft system starting for nothing. I disconnected the siren and after the fuse was removed. The trouble still there, the battery come dry after 2 days. I got also the trouble if I hit the dash the radio come on and of. Any idea for the drain battery.