i have a honda accord 1991 2door coupe. The battery lights came on and the battery went dead. I replaced the alternator and got a new battery also. But still once in a while the battery light flashes. Where could it be the problem is?
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if alternator is bad you are not getting enough power for the lights etc, just battery power, and that is for starting vehicle if it has voltage. if alternator is good, it should put out at least 13.6-14.2 volts at battery with engine running.battery with car off, at posts should be 12.6 or better at battery. so if alternator is bad it needs replaced. needs proper voltage for pcm also. good-day !
Your question is a bit vague, but the first thing I would check is fuses. If they all are good, then there may be a wiring problem. It could stem from a broken wire, bad ground wire, or from a short circuit. To repair the system will require a wiring diagram, and 12 volt test light or multimeter. Reading the diagram, checking for power where the diagram says it should be and checking for ground where it should be. Note, when using a test light, to check for ground simply place the aligator clip on the positive battery cable instead of cliping it to the negative side or frame grounding.
There is a MAIN?BATTERY FUSE in the main fuse Box in the hood that control battery power(this is a BIG fuse like a 90-100amp). First check battery cables and make sure that they are tight and free of all corrosion if there is corrosion this can be clean with a solution of baking soda and water. Good luck and thanks for using FIX YA
Start with the simple first. Check the voltage in the battery. Some new batteries are not fully charged. Next, clean the battery cables. Make the connectors shine and put a little electrical grease on the connectors.