Omega Owners Forum
Chat Area => General Car Chat => Topic started by: TheBoy on 16 July 2020, 16:54:14
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Following yesterdays "incident", I thought I'd better plug in the Tech2 to check over the Battlesbus. Aside from the Cooling Module, which is the reason for checking, the rest of the car had no unexpected DTCs, apart from one of the rear speakers, that I hadn't noticed. Expected faults were glow plug circuit (it doesn't have a full compliment of glow plugs, and even less working ones), and CDC3 (most of it is missing, purely there to allow Aux in).
So back to Cooling Module, 4 DTCs:
21 Not Present Pushing Blower Motor, Malfunction
22 Not Present Pushing Blower Motor, Low Input
11 Not Present Sucking Blower Motor, Malfunction
12 Not Present Sucking Blower Motor, Low Input
Assume Pushing motor is the fan in front of A/C condenser, and Sucking is the one behind the main fan?
I have checked in-cabin fuses related to cooling fans (F2, F39, F40) as described in glovebox manual, but they are all good. So now will look at TIS to check schematics for other fuses... ...but its being an arse, grrrr.
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Main F4 fuse seems to (only) feed those 2 fans :)
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Fan resistor plug dirty / loose / faulty. :-\ What are the symptoms :-\ , fan not kicking in at all, fan running at high speed only? :-\ Hopefully Dave The Builder can throw some light on it, as this is his area of expertise, whereas I'm just guessing. :-\
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Only symptom - ignoring yesterdays overheat, the reason for which is known about - is warning light on dash.
Presumably, the cooling fans won't come on, should the engine need additional cooling.
Main fuse 4 is OK, and 12V at it. The 2 fuses in the relay box, one per fan, are also both OK. Guess next step is to find this cooling module, and see what power is reaching it.
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What happened to the good old days of flicking on a cabin switch connected to the fans when things got a bit hot. After market Kenlowe springs to mind. :) Can you test the fans from Tech 2. :-\
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What happened to the good old days of flicking on a cabin switch connected to the fans when things got a bit hot. After market Kenlowe springs to mind. :) Can you test the fans from Tech 2. :-\
I tried it, it comes up with a message straight away about the module not support Power Stage 4, so *appears* to be applying quite a low voltage to the fans (according to itself), but fairly certain fans aren't running*
*struggling to get to front of car, because to get all the cars on the driveway, they are all parked a rizla from each other, and no room on the road this afternoon.
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What happened to the good old days of flicking on a cabin switch connected to the fans when things got a bit hot. After market Kenlowe springs to mind. :) Can you test the fans from Tech 2. :-\
Because it's very easy to forget. I've never owned(I don't think I've ever seen) a standard car with anything other than a thermo-switch for electric fans. I have replaced manual switches for thermo ones on aftermarket installations, especially when the hopeless Kenlowe junk has failed.
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Only just back sorry
coolant control module is under the N/s wing(on a astra G ,assume the Zaf is the same) ,red/burgundy slide ZIF type connector (due to the location the plug pins could get water ingress .
the fans have 3 wire speed resistor heat sensors item 5 clicky (https://opel.7zap.com/en/car/t98/p/1/61-12/) ,1 on the front push fan, 1 or 2 on the back fan(depending on spec ) , common for these to fail
I have spare CCU, loom,fans ,sensors if you can't find a replacement for what is dead
don't have the Zaf A here or the manual :(
i'd check the speed resistors for function, wiring plugs ,power the fans to make sure they work to start if you checked fuses (including a big fuse in engine bay caddy )
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Thanks.
The wiring diagram doesn't seem to show any resistors.
Looks like the bumper has to come off on the Zaf to get to the module, which probably means I'm gonna have to jack it, which will be fun at the moment. Looking at the wiring diagram, it either got to be both fans have failed, or the module has failed. Guess when I get to module, its easier to track the fault.
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Take that back - there is a resistor fan side of the fan connector on each, and a separate resistor on A/C equipped cars as well :y
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(https://www.vauxhallownersnetwork.co.uk/cdn-cgi/image/format=auto,onerror=redirect,width=640,height=640,fit=scale-down/https://www.vauxhallownersnetwork.co.uk/attachments/fan-2-new-jpg.18972/)
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I suspect the gubbins in the red circle is the culprit (may be 2 or 3 fitted )
you can bypass and power the fan direct to test
tomorrow i can meter out ones i have here and give a resistance reading ,may be available info on the interweb
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Thanks.
The wiring diagram doesn't seem to show any resistors.
Looks like the bumper has to come off on the Zaf to get to the module, which probably means I'm gonna have to jack it, which will be fun at the moment. Looking at the wiring diagram, it either got to be both fans have failed, or the module has failed. Guess when I get to module, its easier to track the fault.
If it is the module, there are 4 types, petrol or diesel and with or without aircon
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the resistor for front push is marked 0.30 ohms
the resistor for rear pull is marked 0.24 ohms
they are soldered to the fan (and sold as a complete unit including fan motor ),
there's a gazzilion different part numbers for fans ::)
and several part numbers for the mounting shroud (but they just un-bolt from the shroud with torx bolts)
I've got both push and pull fans with resistors here (DE11 Swadlincote ,70 miles from the blast zone Brackley) Free to you if you need either :y
the CCU and loom I have will be from a 1.6 :(
I could post out a fan motor but you live in Brackley ,it would never arrive ;D
If it is the module, there are 4 types, petrol or diesel and with or without aircon
dam , the one I have is petrol with AC ,so probably no good for Jamie
Corsa ones clicky (https://www.ebay.co.uk/itm/Vauxhall-Corsa-D-06-14-Fiat-Grande-Punto-05-12-New-Radiator-Cooling-Fan-Resistor/123639078015?epid=28012779395&hash=item1cc9769c7f:g:m1UAAOSwn2pcYDzk) are available separately £11 delivered and i can't see the internals being much different :-\
obviously they won't deliver to Brackley either ;D
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Cheers for readings :y
Cant start the stripdown until TBE can be dumped somewhere to make space, so that needs fixing first, before I start ripping the front off the Battlebus. Only TBE is waiting for a part from egay ordered on Tuesday lunchtime and estimated for Thurs/Today, but according to the tracking number is yet to be posted >:(
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You must be on a right proper black list[can you call them that these days?] I've never had problems with e-gay.You need select your sellers better
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You need select your sellers better
This one was selected for me ;D
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I've got both push and pull fans with resistors here (DE11 Swadlincote ,70 miles from the blast zone Brackley) Free to you if you need either :y
Is the front (push?) one ident code YS? If so, when you in?
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Front fan is fubar. Initially, it would spin backwards, but would immediately seize within 5 degrees when rotated by hand the correct way. Measuring resistance whilst slowly rotating the wrong way, it would go from less than 1 ohm to open circuit. Freed it up to it will rotate in either direction, but now won't spin in either direction under power ;D.
Trouble is, rear fan (suck?) is reporting the same fault codes, but spins fine with 12v applied to it. So possibly still a cooling module fault.
Front fan clips into the A/C Condenser at the bottom, and is held on with nuts onto studs on the condenser at the top. Upon removal, the bottom of the condenser came off with the fan, with definite signs of yellow dye in that area, so that confirms where the A/C leak was ;D.
If a replacement front fan cures the issue, I might just buy a new condenser for about £55. I might even put some gas in it as well.
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Mrs TB is such a lucky woman :y
45mpg AND aircon :D
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Mrs TB is such a lucky woman :y
45mpg AND aircon :D
There is no way that battles will ever get 45mpg. Ever.
I think she achieved 42mpg once over a tank when the Chav was bust she used it for a week. Must have been school hols, when the red rage doesn't hit her ;D
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;D
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Resistor for rear (suck?) fan is 1.2M. So guessing thats BFoNTV as well :(
I'm also guessing thats an arse to remove, grrrrr
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I've got both push and pull fans with resistors here (DE11 Swadlincote ,70 miles from the blast zone Brackley) Free to you if you need either :y
Is the front (push?) one ident code YS? If so, when you in?
Ignore that, car is off to scrappy.
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I've got both push and pull fans with resistors here (DE11 Swadlincote ,70 miles from the blast zone Brackley) Free to you if you need either :y
Is the front (push?) one ident code YS? If so, when you in?
Ignore that, car is off to scrappy.
Is it that rotten behind the bumper?
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I've got both push and pull fans with resistors here (DE11 Swadlincote ,70 miles from the blast zone Brackley) Free to you if you need either :y
Is the front (push?) one ident code YS? If so, when you in?
Ignore that, car is off to scrappy.
Is it that rotten behind the bumper?
Its not pristine, but its not that bad TBH. I've always wondered how GM got anti corrosion so right on the Zaf-A, yet so wrong on the Omega.
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Its not pristine, but its not that bad TBH. I've always wondered how GM got anti corrosion so right on the Zaf-A, yet so wrong on the Omega.
Considering the Omega structure is a mid-seventies design, it isn't bad. Way better than its contemporaries - Granada, E28BMW, Renault 30, CX.
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got the bits you need TB , replying to your PM now :y
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got the bits you need TB , replying to your PM now :y
I think it's being scrapped :-\
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*If* the fan is happy only being attached at the top, and given the flawless* test drive its just had with the front fan in the garage, it may get a reprive.
I think some (probably all?) of these fan faults were pre-existing for ages, and went unnoticed.
*gutless, obviously.
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Fitted the front fan supplied by Dave the Builder - thanks! - had to "tweak" it a bit, the blades were perfect, the motor mounting needed a thwack or 2. Managed to secure the bottom of the fan shroud, so that's all good.
Resistor on rear fan was an utter, utter arse. Just accessible enough with both undertrays removed (the inspection one and the main engine one), but the bolt had enough rust to prevent any small tool that would squeeze into the space from gripping, but strong enough to be a proper bitch. Must have taken 4 hrs :(
Whacked on Tech2, stage 1 fans perfect :). Next stage errors, and sends straight to stage 5, throwing sucking motor malfunction and sucking motor low input. Testing the fan from the ecu multiplug, fan is fine both with direct power, and via resistor. So guessing the ecu has failed :(
So, the faults found are
Front fan motor seized
Read fan resistor
Probable ecu
And live data of the cooling module puts coolant temp at 70c, so that's 'dangle berries' as well.
Its all back together, as I need it in the week.
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that's a shame :(
did it cancel the coolant light on the dash ?
in which case ,is it worth doing any more too it :-\
if the front fan kicks in when hot and no dash lights :-X
https://www.ebay.co.uk/itm/2002-VAUXHALL-ZAFIRA-2-0-DTI-Fan-Control-Module-Switch-Relay-15396912/274074687111?hash=item3fd01fd687:g:nuQAAOSw6WJdubOd (https://www.ebay.co.uk/itm/2002-VAUXHALL-ZAFIRA-2-0-DTI-Fan-Control-Module-Switch-Relay-15396912/274074687111?hash=item3fd01fd687:g:nuQAAOSw6WJdubOd)
£17 delivered , BUT you said my Jan 2003 engine was different to your engine , 2002 is changeover year ,so I think you'd need to check the part number of what you have fitted :-\
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Ignoring when Tech2 attempts to activate cooling fans, light hasn't been seen since its overheat incident :)
Its going to Guildford tomorrow as it is. If it gets there and back, all well and good. If it breaks, well, I'll take of the reg and vin plates and leave it there ;D
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If it overheats enough to catch fire the insurance will pay out :-X
that said ,I'm sure it will be fine and last you many ,many ,many more years ;D
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and last you many ,many ,many more years ;D
I must have been evil in a former life :(
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and last you many ,many ,many more years ;D
I must have been evil in a former life :(
Nobody made you buy it :D
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and last you many ,many ,many more years ;D
I must have been evil in a former life :(
Nobody made you buy it :D
We all do daft things at times, but no more so than that Jaime lad, although he's getting old now ::)
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and last you many ,many ,many more years ;D
I must have been evil in a former life :(
Nobody made you buy it :D
I needed a storage facility when my tool chests outgrew the kitchen. Cue, Battlebus ;D