The clock/CD player in my Prius 2001 stopped working after I accidentally touched a red wire to ground/car body. The 7.5A fuse next to it is fine, so are the visible fuses. The radio is OK too, with the previous setting. A Toyota mechanic told me that the clock/CD player needed to be replaced since one of the 4 wires to the clock has power. But the clock can start to run after ACC is on and can be barely visible when head lights are on. It seems that there are 2 sets of power to the clock, one for display and the other is always-on for clock running, and the always-on power is down. After I checked the wires I think the always-on power may come from the metal box(~5"x5", is it a computer?) under dashboard if it's not from a gateway box. I'm wondering how to fix it? I'd appreciate it.
I suggest that you obtain an electrical wiring diagram for your car at techinfo.toyota.com Then find the wiring diagram for the clock and identify the fuse that provides 12V power at all times, which may be DOME. That fuse likely has blown, especially if the overhead cabin lights do not work.
Patrick, Thank you for the link. I got a lot of information there. Clock connects to ACC, Panel, & DOME fuses. In my case there seems a problem somewhere between DOME fuse and the clock since the clock starts to run whenever the head lights turn on and ACC makes it a little visible.
