I installed a si cd player into my EG and it looks so sweet my friend had to get one in his coupe. He picked one up off ebay and we installed it in his car but it wouldnt turn on. At first we thought we got ripped.... I took that cd player and swapped it out with my car and it worked, that allowed us to rule out the cd player as not being the problem. Next we double checked our wiring to see if it was right. This isnt that difficult - Ground , 12 volt, and 12 volt memory. they were all hooked up. Next I busted out a multimeter and this is where the weird **** starts. the red wire (hot when ignition on and not hot when ignition is off) was working properly and reading around 12 volts. the 12 volt memory wire was jacked. This wire should read 12 all the time..... It was Reading 19.9 volts when ignition was off and 4 volts when on.. This was the problem, obviously. So to get the player to work.... all we did was locate a wire to was 12 volts hot all the time. We used the wire that powers the hazard switch. His cd player works and he is happy but i want to know why in the hell is this car putting out almost 20 volts off and 4 volts on? sorry for the long story just want to know why its doing this. C'mon electrical troubleshooters!

-andrew

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EGhatched &raquo;</TD></TR><TR><TD CLASS="quote">I installed a si cd player into my EG and it looks so sweet my friend had to get one in his coupe. He picked one up off ebay and we installed it in his car but it wouldnt turn on. At first we thought we got ripped.... I took that cd player and swapped it out with my car and it worked, that allowed us to rule out the cd player as not being the problem. Next we double checked our wiring to see if it was right. This isnt that difficult - Ground , 12 volt, and 12 volt memory. they were all hooked up. Next I busted out a multimeter and this is where the weird **** starts. the red wire (hot when ignition on and not hot when ignition is off) was working properly and reading around 12 volts. the 12 volt memory wire was jacked. This wire should read 12 all the time..... It was Reading 19.9 volts when ignition was off and 4 volts when on.. This was the problem, obviously. So to get the player to work.... all we did was locate a wire to was 12 volts hot all the time. We used the wire that powers the hazard switch. His cd player works and he is happy but i want to know why in the hell is this car putting out almost 20 volts off and 4 volts on? sorry for the long story just want to know why its doing this. C'mon electrical troubleshooters!

-andrew</TD></TR></TABLE>Not sure what the problem is, but as the batt. is not going to put out more then 12.5v to 13.5v with motor off, reading over 19v on that line may have something to do with the MM , did you check the fuse for constant power in the engine bay fuse box, normaly a 7.5 amp 94

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fcm &raquo;</TD></TR><TR><TD CLASS="quote">Not sure what the problem is, but as the batt. is not going to put out more then 12.5v to 13.5v with motor off, reading over 19v on that line may have something to do with the MM , did you check the fuse for constant power in the engine bay fuse box, normaly a 7.5 amp 94 </TD></TR></TABLE>


I'm sorry, whats the MM? So what wire should I test for constant power? Could A fuse cause this problem. I dont see how a fuse can cause voltage to increase but then again i dont know much about electric physics. thanks bro.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EGhatched &raquo;</TD></TR><TR><TD CLASS="quote">


I'm sorry, whats the MM? So what wire should I test for constant power? Could A fuse cause this problem. I dont see how a fuse can cause voltage to increase but then again i dont know much about electric physics. thanks bro. </TD></TR></TABLE> MM = multimeter sorry, no the fuse will not cause voltage to increase, I ment that may be a problem with the multimeter, the fuse for the constant power is in the fuse box in the engine bay, replace it, evan if it looks good, if its a Honda/Acura it will be a 7.5 amp. 94

 

You might want to test the wires again with another meter... The only possible way I can fathom that you might get a reading that high would only be with the IGN on and a dead regulator feeding the altenator full duty. As for getting any more than 12-13V with the IGN OFF, I don't see how this would be possible unless perhaps he's running multiple batteries and the isolation is messed up as well as different voltage batteries used and wired parallel. I would bet that your meter suffered a bad blow when a circuit measuring more than 10A was metered. What's that ampergae rating on your meter?? Many folks would be suprised to find out that their meters max out at around 10A. Case in point... if you try to meter your amperage at the battery with the IGN ON... poof. You would need a shunt or a better meter to do this properly. In any case, you can't squeeze a diamond out of a piece of xxxx. I would start with checking your meter which tends to be defying the laws of electricity and physics. Then I would take a good look at the ground wire connected to the constant memory circuit on your friend's car. If you can't fix it that way, clip the memory wire and connect it to another constant source...

Good luck... please let us know.

Electrical problems can be a bear...

Andrew.
aka neex.