Results 1 to 4 of 4

Thread: P0684 - Glow Plug Control Module to PCM Commmunication Circuit Range/Performance

  1. #1
    Junior Member
    Join Date
    Mar 2017
    Location
    Doncaster
    Posts
    13
    Post Thanks / Like

    P0684 - Glow Plug Control Module to PCM Commmunication Circuit Range/Performance

    The other week I got the enginer management light come on. (mentioned earlierin another post but just a dead end really) So, I bought a cable and software and the fault was .. exactly..

    Stored DTC(S)
    P0684 - Glow Plug Control Module to PCM Commmunication Circuit Range/Performance

    I found a great webiste here ... https://www.obd-codes.com/p0684 which pretty much covered everything ... apart from where all the respective componants live??

    Anyway ... I reset the code but seeing as the ambient temperature is great today I'm not really surprised the fault hasn't returned. It's got a its service due in a few months and so I'd really like to sort this myself before then.

    Could someone help with the locations of the GPCM, PCM and the solenoid.

    If the fault was with a glow plug wouldn't I get some other code indicating which one had failed?

    Thanks

    Superb SE L Exec estate Nov. 2017
    Last edited by davet30; 22-05-20 at 14:30. Reason: incorrect car in signature
    In my younger days I did most of the work on my cars for both mine and the wife's cars. These included:
    mk1 escort, vectra, Astra, peugeot, primera, Micra, Fiesta, Xantia, Punto, Mondeo, C1

    Mechanic 1979 - 1991, electro mechanic 1993 - 1994, Clinical Technologist Sept. 1995 - to date

    Current car:

    Superb SE L Exec estate 2L with factory fitted towing hitch - 2017

  2. #2
    Administrator Crasher's Avatar
    Join Date
    Aug 2013
    Location
    Nottingham, England.
    Posts
    845
    Post Thanks / Like
    Quote Originally Posted by davet30 View Post
    (mentioned earlierin another post but just a dead end really)


    You haven’t made a post here in nearly 3 years...
    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.
    2006 Polo GTI 1.8T, APR 95RON remap
    1988 Golf 2 GTI 16 valve, 2.2 with Weber Alpha injection
    1983 Golf 1 GTI 8 valve, 2 litre with Eurospec racing 42/36 head
    1972 1302LS auto 1641cc conversion

    Vile Invention

    Dark was that day when Diesel conceived his grim engine that begot you, vile invention, more vicious, more criminal than the camera even, metallic monstrosity, bale and bane of our culture, chief woe of our Commonweal. How dare the Law prohibit hashish and heroin yet license your use, who inflate all weak inferior egos? Their addicts only do harm to their own lives: you poison the lungs of the innocent, your din dithers the peaceful, and on choked roads hundreds must daily die by chance-medley. Nimble technicians, surely you should hang your heads in shame. Your wit works mighty wonders, has landed men on the Moon, replaced brains by computers, and can smithy a "smart" bomb. It is a crying scandal that you cannot take the time or be bothered to build us, what sanity knows we need, an odorless and noiseless staid little electric brougham.

    W.H. Auden (1907-1973), A Curse:

  3. #3
    Senior Member The Hood's Avatar
    Join Date
    Mar 2016
    Location
    Berkshire
    Posts
    315
    Post Thanks / Like
    Quote Originally Posted by Crasher View Post
    [/CENTER]

    You haven’t made a post here in nearly 3 years...
    You can't rush some people
    Hampshire and Berkshire 4x4 response "Classic" Aqua Blue 140 BHP Elegance 4x4, Park assist,RRP,Spare Wheel.

  4. #4
    Junior Member
    Join Date
    Mar 2017
    Location
    Doncaster
    Posts
    13
    Post Thanks / Like
    Quote Originally Posted by Crasher View Post
    [/CENTER]

    You haven’t made a post here in nearly 3 years...
    "(mentioned earlierin another post but just a dead end really)" sorry I copied and pasted from another forum

    Thanks for your 'constructive' comments
    In my younger days I did most of the work on my cars for both mine and the wife's cars. These included:
    mk1 escort, vectra, Astra, peugeot, primera, Micra, Fiesta, Xantia, Punto, Mondeo, C1

    Mechanic 1979 - 1991, electro mechanic 1993 - 1994, Clinical Technologist Sept. 1995 - to date

    Current car:

    Superb SE L Exec estate 2L with factory fitted towing hitch - 2017

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •