Electrical help needed

Discussion in 'General Motoring' started by EDSD, Jul 8, 2006.

  1. EDSD

    EDSD Guest

    Last month I went on vacation for 3 weeks, during this time it rained like
    heck on my civic. When I returned from vacation, I started my Civic and
    immediately got a "Charge System" light, and "ABS" light and a "SRS" light.

    The next day the car wouldn't start. I pulled out the battery and it
    wouldn't charge with an automatic charger. I thought that the problem was
    the battery (6 years old) and I went ahead and replaced it. I placed in the
    new battery and now whenever I connect the battery the following fuses burn
    instantaneously and the car wont start (it'll turn over but I don't hear the
    fuel being injected prior to the starter and I don't detect any smell of
    gasoline):

    Underhood Fuse Relay Box:
    Fuse # 44, PGM FI main relay
    Fuse #47, Audio Unit
    Fuse #51, Door Lock

    Underhoos ABS Relay Box:
    Fuse #62, ABS Control Unit

    Under Dash fuse Relay Box:
    Fuse #15, Alternator SP Sensor, ELD unit

    The car is a 2000 Civic Coupe SE, D16y7 with ABS brakes.

    I've tried:
    Replacing the fuses
    Disconnecting the alternator
    The whole to no avail.

    I'd greatly appreciate any help you can give me.
    I would tow the car to the nearest dealer but it's going to cost me a small
    fortune (over 40 kilometers away).
     
    EDSD, Jul 8, 2006
    #1
  2. ---------------------------------------

    I hate to bring up the most obvious question, but is there any
    possibility you installed the first or second battery with the red wire
    on the black terminal? (some batteries have the terminals on the 'wrong'
    side)

    It sounds like you've fried the diodes in the alternator as well as
    other stuff.

    'Curly'
     
    'Curly Q. Links', Jul 8, 2006
    #2
  3. I hate to say it, but that was my first thought too. It is also possible for
    aftermarket battery wiring to be the wrong color! The only sure way is to
    look on the battery for the polarity markings molded into the case near the
    posts; a "+" and a "-" usually in circles, and follow the "-" wire to the
    engine block or the body of the car.

    If the wires are reversed, the way to test it is to correct the wiring,
    replace the blown fuses and see what works and what doesn't. Especially
    check to see if the system is charging - check for at least 13.6 volts DC
    and less than 0.1 volts AC across the battery with the engine running. If
    the voltage is at least 13.6 DC, make sure it is inder 15.5 volts DC (warmer
    temperatures give lower readings) or the battery will be ruined within half
    an hour.

    Mike
     
    Michael Pardee, Jul 8, 2006
    #3
  4. EDSD

    Burt Guest

    This sounds like a short that has melted its wire to several other wires.
    Logic will tells me to disconnect the alternator, disconnect the main relay
    and jump battery power to the fuel and ignition system so you can drive to
    where ever you want. Make sure you connect the jumper wire with a fuse
    (say, 15-Amps) attached.

    The way the PGM FI fuse blows tells me that Honda doesn't
    care if you get stranded just because other circuits failures.
     
    Burt, Jul 12, 2006
    #4
  5. EDSD

    Burt Guest

    I believe this car uses a post type battery which has a large and a small post.
    This is a way to fool proof this type of error. This should be obvious to the
    battery installer.
     
    Burt, Jul 12, 2006
    #5
  6. EDSD

    edsd Guest

    Thanks for all of the replies,

    I am usually a very careful person and will check and double check
    things before installing, I am certain that the battery was placed in
    its proper form, in fact, I've taken a voltmeter just to be sure. Last
    weekend was the first time I had a bit of time to look over the car,
    this is what I found:

    the following fuses continously burn:
    Underhood Fuse Relay Box:
    Fuse # 44, PGM FI main relay
    Fuse #47, Audio Unit
    Fuse #51, Door Lock

    Underhoos ABS Relay Box:
    Fuse #62, ABS Control Unit

    Under Dash fuse Relay Box:
    Fuse #15, Alternator SP Sensor, ELD unit

    The car beeps 6 times whenever I insert the key.

    The following systems work:
    headlights
    parking lights
    horn
    brake lights
    emergency lights
    wipers
    the A/C fan comes on
    the interior dome light
    starter motor

    The following systems do not work:
    Radio
    Door locks
    aftermarket car alarm (with fuel pump cut-off)
    I still do not hear the fuel pump engage for the 2 seconds after I
    insert the key into the ignition.
    The automatic transmission will not shift out of PARKING

    I used a self-powered light test (actually it beeps) and fuse #51
    (underhood fuse relay box "keyless door lock") makes contact with both
    ground, on one side, and positive, on the other. I traced back the
    origins and by removing the car alarm (disconnecting the harnesses) I
    found that the fuse would no longer go to ground but all the other
    fuses still burn.

    So far I have disconnected all of the harnesses in sight, including
    under the dash, the abs, keyless door lock and in the engine
    compartment, I have cleaned and left them to dry for several days, the
    whole to no avail.

    I know that somehow everything is probably connected to either a bad
    ground or a bad wire, the problem is that the wiring diagrams in the
    "Chilton" manual are not specific enough.

    Any of your comments and recommendations would be greatly appreciated
    and if I do find the problem, I will happily post a very detailed
    message to the benefit of other people who might experience a similar
    problem.

    One last note, for the past two years my fuel gauge has been erratic,
    out of the blue and while at a red light, it will stop reading the
    amount of fuel in the tank. Five minutes later, everything will be ok.
    This happened perhaps 6 times in the past year or so.
     
    edsd, Aug 3, 2006
    #6
  7. EDSD

    edsd Guest

    Thanks for all of the replies,

    I am usually a very careful person and will check and double check
    things before installing, I am certain that the battery was placed in
    its proper form, in fact, I've taken a voltmeter just to be sure. Last
    weekend was the first time I had a bit of time to look over the car,
    this is what I found:

    the following fuses continously burn:
    Underhood Fuse Relay Box:
    Fuse # 44, PGM FI main relay
    Fuse #47, Audio Unit
    Fuse #51, Door Lock

    Underhoos ABS Relay Box:
    Fuse #62, ABS Control Unit

    Under Dash fuse Relay Box:
    Fuse #15, Alternator SP Sensor, ELD unit

    The car beeps 6 times whenever I insert the key.

    The following systems work:
    headlights
    parking lights
    horn
    brake lights
    emergency lights
    wipers
    the A/C fan comes on
    the interior dome light
    starter motor

    The following systems do not work:
    Radio
    Door locks
    aftermarket car alarm (with fuel pump cut-off)
    I still do not hear the fuel pump engage for the 2 seconds after I
    insert the key into the ignition.
    The automatic transmission will not shift out of PARKING

    I used a self-powered light test (actually it beeps) and fuse #51
    (underhood fuse relay box "keyless door lock") makes contact with both
    ground, on one side, and positive, on the other. I traced back the
    origins and by removing the car alarm (disconnecting the harnesses) I
    found that the fuse would no longer go to ground but all the other
    fuses still burn.

    So far I have disconnected all of the harnesses in sight, including
    under the dash, the abs, keyless door lock and in the engine
    compartment, I have cleaned and left them to dry for several days, the
    whole to no avail.

    I know that somehow everything is probably connected to either a bad
    ground or a bad wire, the problem is that the wiring diagrams in the
    "Chilton" manual are not specific enough.

    Any of your comments and recommendations would be greatly appreciated
    and if I do find the problem, I will happily post a very detailed
    message to the benefit of other people who might experience a similar
    problem.

    One last note, for the past two years my fuel gauge has been erratic,
    out of the blue and while at a red light, it will stop reading the
    amount of fuel in the tank. Five minutes later, everything will be ok.
    This happened perhaps 6 times in the past year or so.
     
    edsd, Aug 3, 2006
    #7
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