I replaced my battery and the radio does not turn on nor do the head lights. All fuses are fine. The lights show if i want to flash the brights. But nothing steady. I even replaced a bulb with no change. I'm not going to spend $100 for a diagnostic that'll tell me something I already know... but I need some code to turn those and the radio back on.
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Have you tried to replace the headlight switch? I ask that because you say the radio and clock go out, with the headlights on clock and radio go dim, so not so bright at night but bright in day to see them. So maybe the switch is bad?
please follow the line going to the battery , they have FUSE, and replace and fix it. Disonnect the battery and clean the contacts fuse and install again. The radio must be turn ON.
take a test light and check your fuses , make sure both sides of the fuse is hot ! check power at alternator if no power gos in no power will come out.
Your radio, when power went down/off it went into LOCK mode. You're going to need to enter security code to get on again. It's an anti theft radio. Hopefully you have code in glovebox or with owners manual. If not you need to contact Pioneer and they'll want radios' serial #
sometimes when you buy cheap remanufactured parts you get rough running and dimming lights from voltage fluxuations.i always had good luck with new parts or factory stuff from low mileage wrecks.
charge battery up 2 amp slow charge,could take 24 hrs,,, put a volt meter of any kind that goes up to 20 volts or more,and it should be charging 13.50 to 14.25 with nothing on then turn ac on and fan on high and head lights on bright it should stay around13.25 to 13.75 if u dont get these readings replace alternator
Most often the tail lights and dash lights share a single feed and fuse.
Assuming you have checked the fuses (probably marked as tail or courtesy)
If you have good fuse and the head light gives a voltage out while in the 'parking light' position (usually between off and headlights) then you need to start chasing wiring.
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