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Thread: Urgent Help Needed please, Signum Elite 2.0T CIM/Dash/Electrical Problems!!!!!

  1. #1
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    confused Urgent Help Needed please, Signum Elite 2.0T CIM/Dash/Electrical Problems!!!!!

    Right, I'll go through this one from the top, from day one of ownership.

    Sunday (in October), Picked up car, 53 plate Black Signum 2.0T Elite, full spec with literally almost every extra fitted to it (electric everything+Nav etc). 76k miles, full history (main dealer bar the last oil service @76k), non factory but reputable LPG conversion (BRC) fitted by a well known installer in Manchester.

    Monday (next day) wife takes it to work, steering wheel light and traction control light come on, so she brings it back for me to look at, but I can't find any problems after restarting it. Drives faultless either way.

    After a while, maybe two weeks, the same happens again, so I get the car booked in for a Tech 2 at a VX specialist in Nottinghamshire, 21 fault codes stored (xenon levellers, steering angle sensor, misfire, low fuel, low battery all the usual crap really) so I got a full reset done and was told if it happens again its more than likely the CIM, assuming the car drives ok when its all lit up like christmas.

    Over the next 2 months or so, the traction control light, steering light and loss of speedo happen occasionally, until just after Christmas, the whole dash starts to go nuts, ABS, TC, Battery, Fuel lights all start flashing, rev counter, fuel gauge and speedo start going wild, but the car still drives perfect (on petrol or gas, that doesn't seem to affect it).

    Eventually, just before we had the car booked in for another test, wife goes to work, and the car won't start, just nothing when the key is turned, ignition comes on but no starter click or anything. After constant switching on and off repeatedly, it finally starts, and carries on starting and driving as normal (but dash lights and clocks still going nuts). But the same eventually happened, managed to get started and drove to VX specialist.

    So this friday (yesterday 27th Jan) get a new CIM module from VX main dealer (GL code on the original, DL code on the new one - apparently this is the new up-issued part for my car, and the parts guy did show me on the screen "services GL/GN code") and had it fitted by the same VX specialist, full tech 2 reset and code of both keys etc. On the way home after all work is complete and tech 2 carried out, traction control light and steering light come on, so take the car back.

    After another tech 2 test, steering angle sensor showing at fault, so this is re-calibrated to clear and reset the codes and sensor.

    After 24 hours, we get the traction control light and the steering light again, shortly followed by the dash lights and clocks going mental just as they did before the new CIM was fitted.

    So basically, I'm nearly £300 out of pocket with the same fault, so has anyone got any ideas or advice I can have, as the cars going back in on monday for more investigation, but I'd like to know what I'm looking at here, we've only just really got the car and both love it, so I'd really like to get it fixed properly. Any help would be appreciated greatly.

    Cheers all!!! Rob

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    Regular Member Critch's Avatar
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    Vehicle : vauxhall vivaro

    Trim : Basic

    Engine : 1.9

    Year : 2004

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    try unplugging the abs socket near the bulk head spray bit of wd40 in see if that helps

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    Ok, haven't tried that yet, I take it thats the big lump with all the brake pipes going into it at the top left corner of the battery? So I just need to unplug the electrical connector and spray directly into the plug and socket?

    Just out of interest, whats the issue with these do the connectors just dry out?

    Cheers

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    Regular Member kman247's Avatar
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    As Critch says , known issue....yes thats the ecu to spray WD40 into. Issue being that dirt seems to migrate to these and then the WD40 (well the solvent in it) cleans the connector and also lubes the pins to help stop the issue arising again.
    Last edited by kman247; 28th January 2012 at 22:53.

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    Regular Member Critch's Avatar
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    Vehicle : vauxhall vivaro

    Trim : Basic

    Engine : 1.9

    Year : 2004

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    Right, just been out and done that, so we'll see how this goes now, hope to god its worked.

    Cheers!

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    As well as the ABS plug, its worth doing the CIM plug aswell. I have had 3 new CIMS installed by VX at their expense, and all 3 after a short time started making the dials go heywire, and also the non start problem.

    On Kman247's advice i got the CIM plug and cleaned all the contacts... Touch wood i have not had a single hint of reoccurance, and thats well over a year later. (thanks Rich)

    Got nothing to loose giving it a clean. There is also a How2 on both the ABS/CIM plug

    http://www.vectra-c.com/forum/showth...14186&posted=1
    Last edited by Aidi; 29th January 2012 at 15:42.

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    Full Member tolly's Avatar
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    i hope its worked for you too m8

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    With all those electrical gremlins, personally I'd have suspected the alternator might be to blame...?

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    Hi, so far 2 days and no lights, only WD'd the ABS connector for now, bit nervous about doing the CIM plug if I'm honest!!! lol I'll have to have a poke round for the CIM plug how to.

    I had the battery and alternator checked on friday, its kicking out 13.5 volts at the battery even with everything switched on (heated seats, xenons, fans on full, all fog lights, heated rear window etc) so I'd guess that the alternator is ok.

    I'm just waiting for the lights to come on now, really need it sorted as I've got some bushes and links to change as well to get the car up to scratch mechanically before I start buying styling bits and bobs for it, but I'd rather sort the electrical gremlins out first so the car is usable every day.

    Thanks for all the help, any more info might help still, or at least help someone else in the future.

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