Odd electrical or Alternator issues?

Rommel

New member
Hi, I have my 05 V6 4runner for a year now and just lately it has been having some odd electrical or battery issues. The battery was changed back in May 2013. Earlier when the problem began, the car fob would not work so I had to use the key to open the door and then suddenly the car would work again except the time clock, mpg average gas count reset itself.

Just yesterday, it did the same thing and then today, while I'm driving one city 60 miles away, when I was heading into a fog, I turned on the headlights and then suddenly a lot of warning lights, abs, vsc trac, brakes, and skid lights turn on at once. I quickly turn off the headlights and all the warning lights went away. I then turn the radio off and turn the headlights and the warning lights, abs, vsc trac, brakes, and skid lights did not turn on.

When I was driving back home today, I was coming up on a hill and when I let go of the brakes, the car slid down, it didn't hold in place as it did before, and the car was shaking when idling as if it seems like it wants to quit.

Has this happen to anybody before? I looked around the forum and found nobody seems to have this problem, at first I was thinking of the alternator is beginning to die out. I checked the car and the battery has 12.4v and when the car is running, it has 13.8.

Also I checked the DTC enhance readiness and got 20 codes.

P0300
P0171
P0172
P0174
P0175
P0100
P0102
P0103
P0125
P0128
P043E
P043F
P0441
P0451
P0455
P0456
P2402
P2402
P2419
P2420
 
Last edited:
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I would check the battery terminals, all grounding points ( chassis, body, engine ), make sure all harnesses are plugged into the fuse boxes, check that all fuses are properly seated, battery voltage ( at rest, running, and cranking ).

I would pay close attention to the body grounds. They all should be free of corrosion and bare connector to bare metal with a couple coats of dielectric grease or paint to fight off corrosion.
 

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