Hello everyone I've been having some weird electrical issues with my car as of late. I have a 60,000 mile 2011 Honda Accord LX with no electrical power going to anything at all. The battery has been tested and is good. The fuses all throughout the car have power. I have replaced the ignition switch and it didn't fix the problem. I have tried moving around the fuse box relays to see if it was that but I didn't seem to fix the problem with that either.

 

Do you know how to do a voltage drop test?
Example: Using a volt meter, put the black probe on chassis and the red probe on the negative battery post
(must be on chassis and must be on battery post and not on bolt holding cable to chassis and not cable attached to battery)
Turn the ignition on. Try cranking engine. What does the volt meter read?
Anything above 1 volt is bad.
This type of testing must be done along the circuit path to determine where there is high resistance
High resistance can be caused by corrosion. Not all corrosion is visible.
Many times these conditions of no electrical power is due to bad grounds.
So that is the first things I check. But, be persistent and keep looking.
Good luck


Note: Try cleaning the battery posts and cable terminals
Then follow negative cable to chassis and clean contact points