battery drain

Discussion in 'Technical' started by MikeH, Nov 19, 2009.

  1. MikeH

    MikeH smeg

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    My battery's being drained of 1.9 amps with everything off.

    Despite disconnecting all fuses, relays and bunch of individual components, all I've found so far is that it stops when I disconnect plug E19 in the pic below.

    Unfortunately this is a 'battery' connection so not real helpful. I'm just trying to narrow it down some more, I can't really tell by the diagrams whether this goes into the cabin and/or to all these components in the pic. Any ideas?

    [​IMG]
     
  2. Chrispy

    Chrispy Pretentious Upstart

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    That's the main power plug for the entire car. Unpluging that is like removing the battery :p
     
  3. brisz

    brisz Well-Known Member

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    Any lead up or associated issues to mention ?

    Recent electrical installs or repairs ?
     
  4. WazTTed

    WazTTed Grease Monkey

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    my old alternator was sucking 4amps a second.. put your hand on it... does it physically get hot? mine was... scary stuff
     
  5. a2zed

    a2zed Guest

    Any immobiliser, alarm, amps, remote central locking etc?
     
  6. OdinZ

    OdinZ New Member

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    yeah a few interior electrics have a constant power supply... ie. 'memory' wire for stereo, usually yellow wire. So those items would be my guess
     
  7. Polish

    Polish New Member

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    If I still remember my electronics correctly thats almost 23 Watts. Could be a light globe or something.
     
  8. WazTTed

    WazTTed Grease Monkey

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    mind you . you can do 1.9 amps with the boot open and 2 doors!!
     
  9. MikeH

    MikeH smeg

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    Well, disconnected the main starter cable, no change, reconnected and now I'm seeing 1.4 amps drain with the E19 plug disconnected, it was always 0 with that disconnected until now.

    I still see 1.9 amps with E19 connected with or without the starter connected.. kinda confusing.
     
  10. WazTTed

    WazTTed Grease Monkey

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    your battery could be getting pretty flat.. have u tried pulling the fusible links next 2 the stock boost sensor?
     
  11. MikeH

    MikeH smeg

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    battery should be fine, only reconnecting it for a quick check, though not real accurate, it may want to draw more power til it goes into sleep mode or something.

    I did pull the fusible link, it dropped from 1.9 to 1.8 which is also weird, you'd think E19 would go through that before any components.
     
  12. MikeH

    MikeH smeg

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    I've pulled the starter motor, it draws 1.7 amps out of the car, hopefully that's all it is and hopefully I can get a replacement solenoid tomorrow from some place other than Nissan.
     

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