It's easy to distinguish if your car has a damage alternator or battery. The first thing you do is to start your car using your old battery then, once the engine is running then remove the cable from...
Remove the Negative (black) battery terminal while the vehicle is running and if the vehicle dies then it's the alternator, if it stays running then it's the battery. Although this method isn't...
If you mean the relay that controls the starter motor then it is fairly simple. There are 2 possible faults. 1) The relay is working, but is broken or burned out internally. You will hear a click...
start the car, let it run for about 10 to 20 minutes then disconect the batery, the car should stay on (for a few minutes ofcourse) if it dies right away then the alternator is bad
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