Electrical issue

Tiny
LINDA CHARTIER MCKEE PEPIN CHARRON PILAT HANSEN
  • MEMBER
  • 2003 HONDA CIVIC
  • 1.7L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 190,000 MILES
I recently purchased this car. A couple of days after, the check engine light came on. I immediately went to Advance Auto to get the code. I was given a code of P1457, and was told it had to do with the vacuum lines or hose, but would not affect gas mileage or performance. I was able to drive it for about a week like this. The day I had the oil change and tires rotated, I noticed that the wipers were moving slowly(which I thought was the wipers motor going bad. It's 16 years old, after all!). But then the radio became static and then stopped working. I turned it off and got some shopping done. Had no problem starting the car. On the way home, the radio again became static so I turned it off and then the LED display started to blink on and off. On the highway I noticed that my fuel gauge had gone to E and the speedometer went to zero. I decided to go back to the gas station just in case the tank really was empty. As I drove the car it began to sound like it was out of gas. And then it stopped running. I tried restarting it only for it to sound like it wanted to start and then it became a fast click.
I bought a new battery which helped momentarily. Took it to AutoZone to get the alternator tested, and was told it needed to be replaced. So, new alternator is on. However, the alternator is not charging the battery while driving. Two mechanics have said that there is an inline fuse behind the positive battery terminal. No one can find it. Is there a diagram of the engine showing where this fuse is located? And what the amperage of it is supposed to be?
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Thursday, May 16th, 2019 AT 8:39 PM

5 Replies

Tiny
SCGRANTURISMO
  • EXPERT
Hello,

I have included the information that you requested in the diagrams down below. The fuse you are looking for is Fuse #19 (80A) and it is located in the Under hood Fuse/Relay Box. Please let us know if you need any more help.

Thanks,
Alex
2CarPros
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Thursday, May 16th, 2019 AT 10:03 PM
Tiny
LINDA CHARTIER MCKEE PEPIN CHARRON PILAT HANSEN
  • MEMBER
Could it be the voltage regulator? If so, where is it located? The fuse you mentioned has been checked out and appears to be okay. Not broken or burned.
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Friday, May 17th, 2019 AT 7:11 AM
Tiny
SCGRANTURISMO
  • EXPERT
Hello again,

I have included the information that you requested in the diagrams down below. The Voltage regulator is located in the Under hood Fuse Box and is called the Electrical Load Detector (ELD). It is Power-train Control Module (PCM) or "computer" controlled and is non adjustable. I have also included another wiring diagram of your vehicle's charging system. There is only one inline fuse between the alternator and the battery, the one we talked about earlier. The fast click you described earlier was because your battery had been run dead. You remedied this when you bought a new battery and a new alternator.. I have included a link for you to go to below:

https://www.2carpros.com/articles/how-to-check-a-car-alternator
https://www.2carpros.com/articles/car-battery-load-test

These are guides for how to test your vehicle's battery and alternator. If the alternator tests bad, you can take it back and get it replaced. It wouldn't be the first time that a replacement part was bad right out the box, and certainly wouldn't be the last. Please get back to us with what you are able to find out.

Thanks,
Alex
2CarPros
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Friday, May 17th, 2019 AT 7:26 PM
Tiny
LINDA CHARTIER MCKEE PEPIN CHARRON PILAT HANSEN
  • MEMBER
Thanks, Alex. This isn't my first vehicle, but since manufacturers have added components or changed names or changed the location (as in putting the voltage regulator inside the alternator, as I'd heard), it makes things a little bit more difficult.
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Saturday, May 18th, 2019 AT 5:49 AM
Tiny
SCGRANTURISMO
  • EXPERT
Hello again,

I understand. Sometimes I think they do it on purpose just to confuse us. How did the testing turn out?

Thanks,
Alex
2CarPros
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Sunday, May 19th, 2019 AT 12:10 AM

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