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If something wrong with wiring circuit, somewhere, replacing the part won't fix it.
Make sure charging system is working properly. To look up wiring diagram, I need vehicle info. The battery lite is on even with key out? Unplug alternator, see if light stays on, check the alternator wiring connector.
I wish I had those simple probz with my vehicles lol ...seriously I think ur dealer is right on and a lotta times the idiot lite will "lose its value" over time...sometimes also if a light close to the one ur havin troub with has a burned out fuse next to it, the current will :"bleed over"...my old 79 Oldz has had the charge light on half brightness now for 5 yrz!!...I keep cheking bat n alternator n everything is fine...
usually caused by failed generator. Fix the generator and other lights will also extinguish. The car should jump start, but will not stay running without a charged battery. Recommend removing the generator and take to parts store for testing. Would you like instructions for removing generator?
You say your test light was hooked from the negative terminal of the battery to the chassis? This is correct? If so you don't have a short you have an open circuit. You will have a bad ground somewhere between the battery and the engine or between the the engine and the body. Trace your grounds. If you need more help leave a messege in "add comments" and I will help you along.
When the light comes on it means that there is a problem with the
charging system. Could be a number of different things. First check your fuses. Then the belt that drives the alternator for proper
tension. If you find nothing there then take it to a reputable garage
and have the charging system checked. Good luck. Neil W.
Many possibilities but the alternator is a good place to start, if its plug is loose, then the green relay inside the center console just to the left and slightly in front of the emergency brake will be clicking in connecting and disconnecting the battery( one loud click per time). It will need replacing or simply disconnecting works for the short budget.