What should the voltage be on Honda alternator?
If the alternator is functioning properly, the voltage displayed on the meter will be around 13.5 volts. If the voltage displayed is the same or less than battery voltage, replace the alternator. Lee Sallings is a freelance writer from Fort Worth, Texas.
What happens if your Honda CRV alternator fails?
Kill the radio, daytime running lights, air conditioning, heated seats, EVERYTHING. That will allow all of the limited voltage in the battery to go to the ignition system. If your CR-V’s alternator starts to have bearings that fail, it’ll begin to make some very obnoxious noises.
When does the opamp switch off the alternator?
When the split battery voltage is higher than the reference voltage, the opamp switches the power off. The output of T1 goes to a ptc screwed to the alternator case, and then to the power transistor that drains the field coil of the alternator.
When is a voltage regulator bad for an alternator?
When your test shows a steady or intermittent high or low voltage output, the voltage regulator is possibly bad. Most voltage regulators fail by allowing a high voltage output, though. However, before going any further, check that all the connections to the alternator and battery are good and clean as described in the next section.
Why is my Honda alternator not working properly?
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. I called the Honda dealer near me and ordered a new alternator. The wait time was 1 day.
Where can I buy a new Honda alternator?
The alternator that I bought was new from Honda and not re-manufactured (the cost was just over $470.00), the part number is 31100-5A2-A02 (Made in Japan). Here is a side picture and install picture: I asked AutoZone to test my old alternator stand alone, but they said their machine says that they cannot test it this way.
What should the voltage be on a new alternator?
The wait time was 1 day. I installed the new alternator myself and went back to AutoZone to test it. Again, getting the same error “VOLT REG FAILED”. I also ran across a Haynes vehicle manual that states that the voltage should be around 13.5 V – 15 V, but it is not always this way.
Where can I get a 12V alternator tester?
Decided to go to O’Reilly Auto Parts and try their charge system tester. The use the same tool as AutoZone, a tool by a company named AutoMeter BVA-260, but re-branded AutoZone. #1468 12V ALTER.
Can a bad alternator drain a Honda CRV battery?
Nearly any auto parts store will test your battery for free to see if it holds a charge. The process can sometimes take an hour or so, but it’s worth it to know before throwing money into a battery that you do not need. As described above, a bad alternator will drain your CR-V’s battery fast.
What causes an alternator to go over base voltage?
If you are getting more than 2 volts above base voltage, most likely your alternator is over-charging the battery or the battery is faulty. Other potential problems are a faulty voltage regulator or a problem in the charging system wiring.
Can a dead voltage regulator be replaced in an alternator?
At least a dead voltage regulator in the alternator. The voltage regulator can be easily replaced without removing the alternator most of the time, and usually is cheap so worth a try. Nevertheless, you should definitely clean those connectors and terminals every now and then. – galingong Feb 15 ’17 at 9:25
What should the voltage be on a Honda alternator?
I also ran across a Haynes vehicle manual that states that the voltage should be around 13.5 V – 15 V, but it is not always this way. The alternator that I bought was new from Honda and not re-manufactured (the cost was just over $470.00), the part number is 31100-5A2-A02 (Made in Japan). Here is a side picture and install picture:
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.
Nearly any auto parts store will test your battery for free to see if it holds a charge. The process can sometimes take an hour or so, but it’s worth it to know before throwing money into a battery that you do not need. As described above, a bad alternator will drain your CR-V’s battery fast.
If you are getting more than 2 volts above base voltage, most likely your alternator is over-charging the battery or the battery is faulty. Other potential problems are a faulty voltage regulator or a problem in the charging system wiring.