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Join Date: Apr 2011
Location: SO CAL...Huntington Beach and Rancho Cucamonga
Re: Gen light wiring
What year is your car and did it come with warning lights or a gauge package?
Do you have a standard cheapo test light with an incandescent bulb (non led)?
Let's check and see if that alternator is doing what it's supposed to do. Then go from there.
Disconnect the wire from the one terminal. With the engine off, take the alligator clip on the test light and clip it to the battery positive and put the probe on the number 1 terminal with the key on (in the ignition position, first click forward) The light should light. Take a look at the wiring diagram I posted and you will see that the test light is doing the same thing that the diagram shows less the switch in the circuit. Maintain contact with the #1 terminal and have someone start the car. The light should go out. Then have them turn off the car.
While you are there with the test light, put the gator clip on a good ground, ignition on but engine not running, and touch terminal 2 on the alt. Leave the wire connected to the 2 terminal. We should see the light glow.
If this works we can concentrate on the wiring through the dash. I need the answer to the first question above and test results to proceed.
My guess is you have warning light dash and you will instal the light in the original alt light position. We'll figure out the lamp socket when we get the answer to question 1 above.