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- 2014 Honda Civic charging issue!
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2014 Honda Civic charging issue!
17 Nov 2016 19:56 #3489
by Tyler
Replied by Tyler on topic 2014 Honda Civic charging issue!
Hey jaivs26, welcome to the forums!
Just for my info, how did this problem start? Engine wouldn't crank, battery went dead? Cheryl is right about the smart charge system, and how it'll stop charging at specific times, which can make it tough to diagnose at times
Just for my info, how did this problem start? Engine wouldn't crank, battery went dead? Cheryl is right about the smart charge system, and how it'll stop charging at specific times, which can make it tough to diagnose at times
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18 Nov 2016 02:58 - 18 Nov 2016 02:59 #3494
by jaivs26
Replied by jaivs26 on topic 2014 Honda Civic charging issue!
hey tyler!
this problem started 3 months ago and is was not all the times i'm going to only happened 6 or 7 times in those 3 months.
the owner told me that last monday the car started ok in the morning he drove for 20 minutes and then he stopped to the post office, 10 minutes later the engine didn't want to start , at that time he had to use the jump starter to make it home which was 2 block away
he installed and refurbished alternator and that alternator is not charging at any RPM or load
i installed the old (the original ) back and that alternator sometime is charging under load and sometimes is not
today i went to the autoparts and i got a another refurbished alternator as a warranty i installed and it seems to be working ok now
i'm going to let them drive it for a few days to see what happens..
i'll post any update
here are some pics of my last test drive
this problem started 3 months ago and is was not all the times i'm going to only happened 6 or 7 times in those 3 months.
the owner told me that last monday the car started ok in the morning he drove for 20 minutes and then he stopped to the post office, 10 minutes later the engine didn't want to start , at that time he had to use the jump starter to make it home which was 2 block away
he installed and refurbished alternator and that alternator is not charging at any RPM or load
i installed the old (the original ) back and that alternator sometime is charging under load and sometimes is not
today i went to the autoparts and i got a another refurbished alternator as a warranty i installed and it seems to be working ok now
i'm going to let them drive it for a few days to see what happens..
i'll post any update
here are some pics of my last test drive
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18 Nov 2016 20:29 #3514
by Tyler
Nice scan data shots, thanks sir! Looks like it's got the good ol' ELD and a battery current sensor... Both look to be producing rational readings
For anyone else interested, I looked up the diagram for this one. I'm used to the four wire control system that Honda used for years, so I was surprised to see this:
The grey and red wires going to the PCM are CAN network lines. The yellow wire, I'm not really sure. For your own diagnostic purposes (and my curiosity
), it might be good to get a voltage reading on that wire with the system charging. That way, you have a known good basis if you catch it not charging again 
Replied by Tyler on topic 2014 Honda Civic charging issue!
hey tyler!
this problem started 3 months ago and is was not all the times i'm going to only happened 6 or 7 times in those 3 months.
the owner told me that last monday the car started ok in the morning he drove for 20 minutes and then he stopped to the post office, 10 minutes later the engine didn't want to start , at that time he had to use the jump starter to make it home which was 2 block away
he installed and refurbished alternator and that alternator is not charging at any RPM or load
i installed the old (the original ) back and that alternator sometime is charging under load and sometimes is not
today i went to the autoparts and i got a another refurbished alternator as a warranty i installed and it seems to be working ok now
i'm going to let them drive it for a few days to see what happens..
i'll post any update
Nice scan data shots, thanks sir! Looks like it's got the good ol' ELD and a battery current sensor... Both look to be producing rational readings
For anyone else interested, I looked up the diagram for this one. I'm used to the four wire control system that Honda used for years, so I was surprised to see this:
The grey and red wires going to the PCM are CAN network lines. The yellow wire, I'm not really sure. For your own diagnostic purposes (and my curiosity
), it might be good to get a voltage reading on that wire with the system charging. That way, you have a known good basis if you catch it not charging again Please Log in or Create an account to join the conversation.
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