What does the alternator generator warning light indicate?
What does the alternator generator warning light indicate?
What the alternator warning light means. When the light stays on, it indicates that the computer has detected an issue with the charging system. If this light illuminates, try to use only necessary accessories like windshield wipers or headlights so as to avoid excessively draining out the battery.
How do I check the alternator light?
To check the warning light circuit, turn the ignition switch to the “on” position without cranking or starting the engine; if the idiot light does not come on, remove the plug from the alternator and ground the sense wire (wire connected to the bulb).
What is the exciter wire on an alternator?
The exciter wire is used to turn on the voltage regulator. This wire, when unplugged, should have approx. 12.5 volts with the key on. If it does not then the alternator will not work.
How do you diagnose a dim alternator light?
Usually when this is the case, the light will be very dim at hiatal and will get brighter as you rev the engine. To diagnose the problem, put the positive wire of your volt meter on the alternator output terminal and the negative wire of your volt meter on the battery plus terminal.
Does a single wire alternator turn off the charge light?
Since a single wire alternator no longer requires the exciter (IE the brown wire supplied in our Classic Update and universal kits) feed responsible turning off an in-dash charge indicator light, many users find out their quick and easy alternator swap has removed some of the functionality from their car.
What does the idiot light mean on an alternator?
When you turn on the key, 12 volts is supplied to the alternator’s field windings through the idiot light. This gives an indication that the alternator’s field circuit is intact, and it also provides the current to start the alternator charging. In fact, the alternator may fail to charge if that light bulb is burned out.
What is the part number for the alternator diode?
*For repair harness including diode see part number 9840-4033 * The #2 spade on the alternators regulator connection may be either powered full time, or may be wired to be on/off with ignition – either will work. For this diagram we are wiring it right back with the alternators output post which is BAT+ full time.
