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Lighter fuse ?

Discussion in 'GM Electrical Tech' started by RATRODKING, Apr 22, 2012.


    RATRODKING Rockstar 100 Posts

    is there a separate fuse for the cigarette lighter on my 1990 k-1500 4x4 ?
    i dont seem to see one, and everything is working except the lighter...
    thanks in advance.
  2. Enkeiavalanche

    Enkeiavalanche Rockstar 4 Years ROTM Winner 5000 Posts

    Is the Horn working?

    RATRODKING Rockstar 100 Posts

    yes, i do believe so, but will check the horn when it stops raining here... thanks
  4. Jimmeh

    Jimmeh Epic Member 5+ Years 500 Posts

    The fuse will be marked CTSY in your fuse panel. You may also want to check the plug on the back of the lighter to make sure that it is still securely connected.

    RATRODKING Rockstar 100 Posts

    ok guys, i checked all fuses including ctsy and all are good. there is a 5 amp fuse on the lower right side marked CRK, and there is no power going to either side of it when the fuse is removed, either with or without the key on. what is that fuse for, and should there be power to it ? i would think so since there is a fuse there .
    also, there are two silver ( power supplies) ? marked 30a 12v, and on the fuse block its marked "power". what are those for ?
    i did notice that my entire fuse block seems to be loose, is there a way to tighten it ? i didnt see any type of screws to do that.

    so, im assuming the lighter socket is bad ? i guess i will call autozone and see if they have one ? and how on earth do i gain access to replace that ? does the ash tray come out somehow ?
    thanks for any help with this guys.
  6. dipstick

    dipstick Member 2 Years 100 Posts

    Is your check engine light working? Does it come on when key turned then go out?
    If so cig lighter is bad works off same fuse. If light works pull fuses till light goes out will be your cig. fuse.
    Check crank/crk fuse when key turned to on. Truck will not start if it is bad.

    RATRODKING Rockstar 100 Posts

    thanks, i will check this when i get int he truck to hear off for work....
  8. Jimmeh

    Jimmeh Epic Member 5+ Years 500 Posts

    The CRK fuse is the "Crank" fuse which sends power to your starter from the ignition.

    RATRODKING Rockstar 100 Posts

    im assuming that the CRK crank fuse will only show power when i am turning the key when starting the truck ? because it does not show any power at any other time....

    and when i do turn the key to start the truck, the "check engine soon" light does light up for a second.... but no other fuse is bad, so i have pulled the lighter socket out of the ash tray and one night after work will get a new from from autozone and try that.
    i will let you knwo if that does it,
  10. dipstick

    dipstick Member 2 Years 100 Posts

    I,am thinking fuel pump will not run.

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