Just Commodores Forum Community

It takes just a moment to join our fantastic community

Register

Code 92 - Low Speed Radiator fan response signal

Discussion in 'VT - VX Holden Commodore (1997 - 2002)' started by vs_wagon, Sep 22, 2008.

  1. vs_wagon

    vs_wagon New Member

    Messages:
    65
    Likes Received:
    2
    Trophy Points:
    0
    Joined:
    Jan 25, 2006
    Members Ride:
    VS Acclaim V6 Wagon and VT Exec V6 Wagon
    OK the wife's VT comes up with 2 codes.

    12 - System Pass (OK)
    92 - Low Speed Radiator fan response signal

    The problem is the thermo fan switches on at startup sometimes (engine cold and A/C off) and stays on. If you turn the car off and on it's all good though. It's a V6, had a new radiator, thermostat and flush 10 mths ago and runs fine other than that.

    Any ideas?
     
  2. dj_eddie

    dj_eddie New Member

    Messages:
    73
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Dec 9, 2004
    Members Ride:
    VT Berlina S2
    Replace the Low Speed Fan relay. Its located on the left hand side of your engine bay above yuor battery inside a black rectangular enclosure.

    I get the same code. I havent changed the relay yet though, so i cant tell you if that fixes the problem. But it wont hurt to change it i guess.

    Cheers
     
  3. accentstencil

    accentstencil Well-Known Member

    Messages:
    7,246
    Likes Received:
    46
    Trophy Points:
    48
    Joined:
    Jun 30, 2005
    Location:
    Eschol Park, Sydney
    Members Ride:
    WH II Caprice, 5.7
    Changing the low speed fan relay often fixes the problem.
     
  4. vs_wagon

    vs_wagon New Member

    Messages:
    65
    Likes Received:
    2
    Trophy Points:
    0
    Joined:
    Jan 25, 2006
    Members Ride:
    VS Acclaim V6 Wagon and VT Exec V6 Wagon
    Thanks. $8.50 later and problem solved. :thumbsup:

    The new relay has 4 plugs whereas the old one had 5, is that strange?
     
  5. Cheap6

    Cheap6 New Member

    Messages:
    2,498
    Likes Received:
    64
    Trophy Points:
    0
    Joined:
    Jun 19, 2005
    Members Ride:
    VP Exec
    You might want to check that. One of the cooling fan relays is 5 pin, the other is 4 pin. It won't matter putting a 5 pin in a 4 pin socket as the spare pin will not be connected to anything. A 4 pin in place of the 5 pin might disable one of the 2 windings in the cooling fan as the earth path for the 4 pin is via the normally closed contact in the 5 pin. I don't know which relay is for the high speed and which for the low speed though.

    Here's a wiring diagram so you might try to figure it out:

    http://www.memcals.com/pdf/VSV6 Auto Wiring Diagram.pdf

    Edit: Sorry, looking at signature and assumed it was the VS wagon, not wife's VT. The two systems aren't very different though, so I'll leave what I posted.
     
    Last edited: Sep 24, 2008
  6. WAGON MAN

    WAGON MAN Gas Sleeper

    Messages:
    1,059
    Likes Received:
    10
    Trophy Points:
    0
    Joined:
    Jun 7, 2006
    Location:
    North Coast , NSW
    Members Ride:
    VX S2 Berlina Wagon with Phreddied bits.
    The correct Genuine radiator low fan relay is

    part # 92092445.
     
  7. Doctor Bob

    Doctor Bob Grandpa

    Messages:
    2,786
    Likes Received:
    51
    Trophy Points:
    0
    Joined:
    May 23, 2004
    Location:
    Mornington Peninsula
    Members Ride:
    VT V6 Exec & VN V6 Exec
    it should be white in color, the original is blue
     
  8. vs_wagon

    vs_wagon New Member

    Messages:
    65
    Likes Received:
    2
    Trophy Points:
    0
    Joined:
    Jan 25, 2006
    Members Ride:
    VS Acclaim V6 Wagon and VT Exec V6 Wagon
    Hmm I forgot to check back on this one. Thanks for the replies. It turns out they did give me the wrong one. They gave me 92092444 which is grey and has 4 pins. I'll take it back tomorrow.

    Seriously, ho can you trust if you can't trust a holden spare parts place!!?!
     
  9. white vn ss

    white vn ss New Member

    Messages:
    729
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Oct 25, 2005
    Members Ride:
    vn ss
    hi all a mates vt is throwing this exact same code. ive plugged a scan tool in and the thermo fans work. but the code says low fan speed or no bcm response. would this be either the relay or a computer problem??
     
  10. bhopper

    bhopper New Member

    Messages:
    135
    Likes Received:
    2
    Trophy Points:
    0
    Joined:
    Dec 19, 2009
    Location:
    east of melbourne
    Members Ride:
    vt spac supercharged 6,vp bt1 5.0,vn v6
    Hey guys i have just recently gone through the same problem with my vt s pac supercharged not shuagh if its the same as vs but one way to check if the wiring is all ok is that you unplug the connector to the thermo fan sensor and turn the ignition on the low speed fan should kick in after 6 sec anf then high speed should kick in after 12 sec if that happen wiring and realys are fine ,my problem was that once the sensor turn the fans on they wouldnt switch them off so i replaced the sensor which is usually around $113.00 from holden they are the cheapest around burson $134.00 but i paid $64 for my sensor bcause they said it christmas wel thanks holden and that fix my problem and fans are turning on and off now so hope this helps .
     
  11. damiandownie

    damiandownie Damo (Vl Walky replica)

    Messages:
    23
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Feb 3, 2008
    Members Ride:
    VT V6 commy
    Sorry to dig up an old post but where abouts is the thermo fan sensor wiring? i have already replaced the relay with 3 brand new ones from 3 different places and i still have code 92

    regards damian downie
     
  12. Snaketails

    Snaketails New Member

    Messages:
    1
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Oct 12, 2010
    Location:
    35km E of Melb
    Members Ride:
    2008 VE Calais
    Sorry for bumping this thread, spent a day looking for a wiring diagram that show's the Thermo fan wiring, then this thread popped up on page 8 of google.

    Posters have said that this is a common problem with the relay's, if the PDF is correct, then a little problem can burn out the relay's, its really not a safe way to configure the wiring, really bad actually.

    Ok, here is what I have found..

    If the bottom relay turns on, it will short O/P (+12V) to GND

    If the bottom Relay is left off and the Top Relay is turned on, it will short O/P -> O/BLU which in turn will be shorted to GND thru the lower relay's NC terminal

    This is assuming that the relay drawings are following the standard for relay diagrams

    But also, BLU/Y is connected to the coil of the bottom Relay? I think there is actually a error in this drawing..
     

Share This Page