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Thread: 2010 Passat CC GT Glow Plug Circuit Fault

  1. #1
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    2010 Passat CC GT Glow Plug Circuit Fault

    Hi Guys,
    I noticed that sometimes my cc is struggling to start so i ran auto scan on it and i got this: 001649 - Cylinder 1 Glow Plug Circuit (Q10) P0671 - 000 - Electrical Fault on all four glow plugs. i don't know much about cars but since I'm a student and I'm trying to save money i would like to do it myself if possible. Do i need to replace all glow plugs ? or could it be some other issue ? and how would i be able to test it to make sure ? Any help would be appreciated.I'm gonna include full log from the scan as a attachment.

    Thanks You Log-10D132997-WVWZZZ3CZAE537144-159360km-99021mi.txt

  2. #2
    Administrator Keithuk's Avatar
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    First posts normally go in introductions else you could get a free fix and we never see you again!!!

    VAG Error Code: 17055/4984/5413/001649
    EOBD II Error Code: P0671

    Fault Location:
    Glow Plug Cylinder 1 (Q10) Circuit - Electrical Malfunction/Electrical Fault

    Possible Cause:
    Malfunction Indicator Lamp (MIL)(K83) active.
    No Pre-Glow Period.
    Lack/Loss of Power.
    Poor Cold Starting.
    Engine hesitation.

    Glow Plug Wiring/Connector(s) faulty.
    Glow Plug Relay (J52).
    Glow Plug Control Module (GPCM) (J179).
    Glow Plug faulty.
    Engine Control Module (ECM).

    Possible Solutions:
    Check/Replace all faulty Wiring/Connector(s).
    Read Measuring Value Blocks (MVB).
    Check Glow Plug.

    Special Notes:
    See TDIClub Glow Plug 101

    When is the code detected?:
    The Engine Control Module (ECM) has detected a fault in the cylinder #1 glow plug circuit.

    As taken from my new EOBD II Fault Codes Software

    Post moved to correct section.
    2010 Golf GTD (170) CBBB, 5 Door, Shadow Blue (P6/D5Q), Transmission Code: KXZ, Flat Tyre Indicator, Basic Protection Pack + VCDS.


  3. #3
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    Oh Okay sorry about this, didn't think bout that. thanks for the info
    2010 Passat CC GT 2.0 TDI-CR

  4. #4
    Administrator Crasher's Avatar
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    One faulty glow plug should not upset it, they are quite easy to do BUT they can snap and that really is not good... You will need a very long reach 10-mm socket and when coming out, keep the treads wet with releasing agent, they make some terrible noises as they come out, quite buttock clenching as if they snap (and they do) that is specialist work.
    2003 Skoda Octavia VRS Estate. APR 98RON remap, APR R1 diverter valve, Jetex exhaust, K&N panel filter, 7.5x18 Alutec Monstr wheels with 225/40 18 Uniroyal Rainsport 3 tyres.
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    1983 Golf 1 GTI 8 valve, 2 litre with Eurospec racing 42/36 head
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