oo7spy

Check your battery cables both at the terminal and the other end. A loose connection could cause issues. You shouldn't be able to budge any of the 4 points.

Weavz

I found the negative cable loose, and thought that was the problem, so I bought some shims and tightened everything down. Didnt fix it. Curious thought, the fuse block cover has a sticker on it, "auto meter" components, and the red flip cover on the positive side of the battery has a cutout on it? I'm guessing amplifier, but the previous owner was a doctor of Indian descent (not your typical audio customer?)

Alternator, starter cables look good, can't quite see where negative goes (tight spacing).

oo7spy

The positive terminal came from the factory with a fuse box containing 1 50A fuse to power the cooling and condensing fans. If the fuse is there (and God, I hope it is), all is okay there.

If the loose negative cable wasn't the fix, I'm out of ideas.

jodeyjo559

I had this check charging system light it used to go on during high rpm or heavy loads like wen I stepped on it. The check charging system light would also go on if I drove with the A/C off. But a couple times light flashed wen driving normal. So I bought a reman. Denso alternator, gates tensioner ,and gates belt. Replaced parts my self and I have NO Check charging system warnings flashing under heavy acceleration or with A/C off.

My car had a aftermarket tensioner already installed as well as a cheap Car quest alternator ,belt looked factory & real worn. Could have been any of the parts so I replaced them all at once and my problem is fixed

jodeyjo559

I bought my RL with a bad neg cable it would flash check charging system so I replaced neg cable. Fixed for a while but I started my car once and all the lights inside and out started flickering. Stopped and checked battery cables and both +&- were completely lose. Tightened them up and months later check charging system light came on while in freeway driving to coast from valley 75 so I stopped and neg cable was able to twist on terminal. Pushed it down and it fixed warning light all the way home but if I drove with A/C off it would say check charging system. New battery still did it, so I replaced alternator with a reman Denso,gates tensioner and gates belt I have no intermittent check charging system light under any condition I mentioned above