Can a bad alternator cause a bad PCM?
Can a bad alternator cause a bad PCM?
If these are all good, then you need to check the wiring between the PCM and the alternator, or the PCM itself may have a problem. Another possibility is a bad Battery Temperature Sensor.
Can a bad car battery cause an alternator to not charge?
In theory a car can run only with the alternator charge, but this can cause heavy voltage spikes and other strange symptoms so this means that a bad car battery can cause an alternator to not charge also. Cars are increasingly coming with modern electronics.
What happens when the alternator of a car is dead?
The alternator and the car’s battery work hand in hand. A good battery should give you service for the next five years before its lifespan ends. If your battery is dead, then it will not give power to the car’s alternator. The alternator normally lasts longer than the battery.
How can I tell if I have an alternator problem?
To differentiate an alternator problem from the battery, you will need to use a voltmeter to check for voltage. First, turn off the engine and check the battery voltage. A fully charged battery should have a reading of 12.65 volts. Next, turn on the engine and recheck the voltage. You should have a reading of 13.5 to 14.5 volts.
If these are all good, then you need to check the wiring between the PCM and the alternator, or the PCM itself may have a problem. Another possibility is a bad Battery Temperature Sensor.
What does it mean when your alternator is not charging?
If the alternator is not charging the battery, you will have a red “ALT” or “charge” sign on your dashboard. This means that your battery is no longer being supplemented for power by the alternator. You will need to recheck the wiring because the light could also be faulty.
The alternator and the car’s battery work hand in hand. A good battery should give you service for the next five years before its lifespan ends. If your battery is dead, then it will not give power to the car’s alternator. The alternator normally lasts longer than the battery.
Why is my Honda EX L alternator bad?
2013 Honda Accord EX-L, 4 cylinder, CVT transmission, also includes navigation. I recently went to AutoZone to have my battery and alternator tested. They hooked up the test tool and said that the battery was good, starter was good, but the alternator is bad because the voltage regulator test failed.
