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Meriva A, the plot thickens (firms up)?

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T i m

unread,
Nov 21, 2013, 3:53:36 PM11/21/13
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Hi all,

So, the other day the Mrs reported our 04 Meriva 1.6 petrol wouldn't
start but wasn't able to tell me exactly what was (or wasn't)
happening when she turned the key. Well, tonight it happened to me and
if it's the same symptoms I'd say it was immobilised (turns over
freely but won't start)?

As with her I left it for 30+ mins (luckily I was near my Mums <g>)
and when I went back, all was fine. It had only been driven 1/2 mile
from cold when I parked it up.

I noticed that the 'Emissions' light was on when it wouldn't start
(but may have gone out as I was cranking it over).

So, random ignition light but still charging ok.

Speedo and rev counter die for a few seconds as the ignition light
comes on (other things may go out but I've not noticed).

The ignition light can come on repeatedly (and be reset) even when the
engine idling and the vehicle stationary.

The ignition light is reset on ignition cycling (ie, once on it stays
on but can be reset).

My ODB code reader cannot see any error codes.

So, now I've witnessed the thing immobilising itself (when the Rover
218SD did that I knew how to de-activate it easily, even without the
fob), are we looking more at the BCM?

If so, is it something I can simply unplug (does it sit in the fusebox
under the bonnet), open up and check for dry-joints and the like and
just plug back in without it needing any reprogramming etc please?

If I can't see / find anything obvious, is it just a matter of getting
a suitable replacement (how generic are they, even if I get one for a
Meriva A etc) and could I take it to a dealer and ask them to swap
them out and program? Would the original one stay useable (could they
then be interchanged)?

Cheers, T i m

Tim+

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Nov 21, 2013, 4:30:25 PM11/21/13
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Don't suppose it's anything daft like a poor connection to the whole
instrument cowl? My daughter's Corsa did funny things once that the RAC
fixed by just pressing hard on the whole instrument cluster. Apparently a
well known fault.

Tim

Mrcheerful

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Nov 21, 2013, 4:42:21 PM11/21/13
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First thing is: when the problem occurs, is t always with the same key?
If so try the other one.

Most common fault that cures itself with a cool down is the crank
sensor, very common and cheap on most vauxhalls.

Mrcheerful

unread,
Nov 21, 2013, 4:45:18 PM11/21/13
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On 21/11/2013 20:53, T i m wrote:
First thing is: when the problem occurs, is t always with the same key?
If so try the other one.

Most common fault that cures itself with a cool down is the crank
sensor, very common and cheap on most vauxhalls. when they go the rev
counter drops even if it stays running (from the cam sensor feed)

T i m

unread,
Nov 21, 2013, 6:32:11 PM11/21/13
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As it happens, no. She has her own bunch and it was whilst using her
it first happened. All the other times it was mine. FWIW we try to
look after such keys but they must get dropped now and again etc.
>
>Most common fault that cures itself with a cool down is the crank
>sensor, very common and cheap on most vauxhalls.

So, is there any way the crank sensor could cause the faults I've
relayed so far or do you think there could be two things going on?

>when they go the rev
>counter drops even if it stays running (from the cam sensor feed)

Ah, I was about to ask that (as I've not noticed any issues with the
engine / performance etc). ;-)

So, it's good to know the crank sensor is cheap but is it easy to get
to (this is the 8V 1.6)? (And would it put any errors into the ECU)?

Cheers, T i m

Mrcheerful

unread,
Nov 21, 2013, 7:41:08 PM11/21/13
to
on vauxhalls it does not usually show a fault, it seems to think the ign
is off, on VW it comes up as a crank sensor fault !!

I usually find that faults show up singly, so fix one and the other is
cured (if you fix the right one ! ) Sorry, but that is the way it goes.


IIRC the crank sensor is at the flywheel end and easy to replace.

Mrcheerful

unread,
Nov 21, 2013, 7:42:16 PM11/21/13
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On 21/11/2013 23:32, T i m wrote:
on vauxhalls it does not usually show a fault, it seems to think the ign
is off, on VW it comes up as a crank sensor fault !!

I usually find that faults show up singly, so fix one and the other is
cured (if you fix the right one ! ) Sorry, but that is the way it goes.


IIRC the crank sensor is at the flywheel end on the front and easy to
replace.

T i m

unread,
Nov 22, 2013, 6:32:45 AM11/22/13
to
On Fri, 22 Nov 2013 00:42:16 +0000, Mrcheerful
<g.odon...@yahoo.co.uk> wrote:

snip>

>>> First thing is: when the problem occurs, is t always with the same key?
>>> If so try the other one.
>>
>> As it happens, no. She has her own bunch and it was whilst using her
>> it first happened. All the other times it was mine. FWIW we try to
>> look after such keys but they must get dropped now and again etc.
>>>
>>> Most common fault that cures itself with a cool down is the crank
>>> sensor, very common and cheap on most vauxhalls.
>>
>> So, is there any way the crank sensor could cause the faults I've
>> relayed so far or do you think there could be two things going on?
>>
>>> when they go the rev
>>> counter drops even if it stays running (from the cam sensor feed)
>>
>> Ah, I was about to ask that (as I've not noticed any issues with the
>> engine / performance etc). ;-)
>>
>> So, it's good to know the crank sensor is cheap but is it easy to get
>> to (this is the 8V 1.6)? (And would it put any errors into the ECU)?
>>

>on vauxhalls it does not usually show a fault, it seems to think the ign
>is off,

Ok.

> on VW it comes up as a crank sensor fault !!

Fancy that! ;-)
>
>I usually find that faults show up singly, so fix one and the other is
>cured (if you fix the right one ! ) Sorry, but that is the way it goes.

Understood. So, you feel the crank sensor could account for all I am
seeing? I (with my limited experience and understanding of these
things) can see how it could stop it starting (the ECU / BCM not
'allowing' it to start with a bad sensor output etc) but do you also
feel it could be responsible for the ignition light / instrument
shutdown as well?
>
>
>IIRC the crank sensor is at the flywheel end on the front and easy to
>replace.


Ok, well if it's easy, cheap and even only 'one of those things that
do often go wrong' (and worse go intermittent) then I'm happy to give
it a go (yet another tickbox etc).

Cheers, T i m

p.s. I've just been informed a new crankshaft sensor is 20 quid?

Mrcheerful

unread,
Nov 22, 2013, 6:54:40 AM11/22/13
to
I have known some owners to keep one in the glove box, much as people
used to keep a set of points. Vauxhall ones being a commonly sold part
are probably the cheapest.

T i m

unread,
Nov 22, 2013, 11:05:47 AM11/22/13
to
On Fri, 22 Nov 2013 11:54:40 +0000, Mrcheerful
<g.odon...@yahoo.co.uk> wrote:

<snip>

>> Understood. So, you feel the crank sensor could account for all I am
>> seeing? I (with my limited experience and understanding of these
>> things) can see how it could stop it starting (the ECU / BCM not
>> 'allowing' it to start with a bad sensor output etc) but do you also
>> feel it could be responsible for the ignition light / instrument
>> shutdown as well?
>>>

<snip>

>
>I have known some owners to keep one in the glove box, much as people
>used to keep a set of points.

Oooerr!

>Vauxhall ones being a commonly sold part
>are probably the cheapest.

Understood. I'll get one.

As a sort of aside ... I've just found the Haynes BOL and looking at
what diagrams it does offer it seems that the charging cct (or
possibly the indication of / ignition light) goes though the 'body
control module'. I'm thinking therefore that the immobiliser might
also go through the BCM? Is the BCM the box I can feel under the front
passenger seat and the ECU is bolted to the end of the engine?

Cheers, T i m

T i m

unread,
Nov 23, 2013, 7:52:00 PM11/23/13
to
On Thu, 21 Nov 2013 20:53:36 +0000, T i m <ne...@spaced.me.uk> wrote:

>Hi all,
>
>So, the other day the Mrs reported our 04 Meriva 1.6 petrol wouldn't
>start but wasn't able to tell me exactly what was (or wasn't)
>happening when she turned the key. Well, tonight it happened to me and
>if it's the same symptoms I'd say it was immobilised (turns over
>freely but won't start)?

Can I just qualify this with someone please, if it is immobilised,
does the engine still turn over or does it disable everything?
>
<snip>

>Speedo and rev counter die for a few seconds as the ignition light
>comes on (other things may go out but I've not noticed).

I have now noticed that the speedo, rev counter *and* temperature
gauge go out (and stayed out). In fact they went off just *before* the
ignition light came on.
>
>The ignition light can come on repeatedly (and be reset) even when the
>engine idling and the vehicle stationary.

It has also now *not* reset after cycling the ignition (engine started
ok each time and the ODB voltage showed ~13.7 volts).
>
>My ODB code reader cannot see any error codes.

Update. I did find some codes tonight but first thought they were left
over from when my SIL to be was thinking of buying a car and it had a
fault light up. However, they may well be from my Meriva and read as:

P1615 (Powertrain), P1616 (Powetrain) and U2107 (Network), the exact
same combo as mentioned here:

<http://www.vauxhallownersnetwork.co.uk/index.php?threads/wont-start-hardware-fault-to-can-line.218899/>
>
<snip>

Also, I've now seen the 'Engine Electrics Light' (car profile with a
spanner across it) come / stay on for the first time.

There is also mention of similar here:

http://www.merivaownersclub.co.uk/forum/major-problems_topic148.html

Now, I think I understand the Meriva A shares much of it's hardware
with the Costa C? If that is the case then maybe this is relevant?

http://www.corsa-c.co.uk/forum/showthread.php?287507-Car-wont-start-p1615-p1616

Would a loose dash connector account for all the symptoms I've
reported so far?

As yet the engine hasn't cut-out or misfired, it just hasn't started
and the instruments seem to be going a bit mental (all the body
controls seem to be ok).

No one has ever had the dash out AFAIK or even changed the radio etc
(it's still got the factory radio cassette). ;-)

Cheers, T i m

T i m

unread,
Nov 23, 2013, 8:02:28 PM11/23/13
to
On Sun, 24 Nov 2013 00:52:00 +0000, T i m <ne...@spaced.me.uk> wrote:

<snip>

>P1615 (Powertrain), P1616 (Powetrain) and U2107 (Network), the exact
>same combo as mentioned here:

I think I've found the full translation of those codes.

P1615 Serial Communication with Device 15 (VTD, Vehicle Theft
Deterrent)

P1616 is Wrong Vehicle ID from Instrument Control Module C-40

U2107 Lost communications with Body Control System

Loose dash plug?

Cheers, T i m

Tim+

unread,
Nov 24, 2013, 3:50:11 AM11/24/13
to
I refer the honourable gentleman to my previous reply. ;-)

Tim

Mrcheerful

unread,
Nov 24, 2013, 5:19:58 AM11/24/13
to
It spins over normally

Mrcheerful

unread,
Nov 24, 2013, 5:21:55 AM11/24/13
to
On 24/11/2013 00:52, T i m wrote:
it spins over and the car with a spanner symbol lights

T i m

unread,
Nov 24, 2013, 8:07:40 AM11/24/13
to
On Sun, 24 Nov 2013 08:50:11 +0000, Tim+
<timdow...@nospampleaseyahoo.co.uk> wrote:

>T i m <ne...@spaced.me.uk> wrote:
>> On Sun, 24 Nov 2013 00:52:00 +0000, T i m <ne...@spaced.me.uk> wrote:
>>
>> <snip>
>>
>>> P1615 (Powertrain), P1616 (Powetrain) and U2107 (Network), the exact
>>> same combo as mentioned here:
>>
>> I think I've found the full translation of those codes.
>>
>> P1615 Serial Communication with Device 15 (VTD, Vehicle Theft
>> Deterrent)
>>
>> P1616 is Wrong Vehicle ID from Instrument Control Module C-40
>>
>> U2107 Lost communications with Body Control System
>>
>> Loose dash plug?
>>

>I refer the honourable gentleman to my previous reply. ;-)

Yeah, sorry mate ... I'm sort of going round and round here with all
sorts of ideas in my head! ;-(

I think you must have seeded my mind to the possibility, even though
I've not really experienced anything like this before.

So, as we speak I've connected my USB endoscope to my W7 laptop and
will pop out and see if I can see anything (to save taking the dash
out).

Cheers and thanks again. ;-)

T i m

T i m

unread,
Nov 24, 2013, 8:11:27 AM11/24/13
to
On Sun, 24 Nov 2013 10:21:55 +0000, Mrcheerful
<g.odon...@yahoo.co.uk> wrote:

<snip>
>> Can I just qualify this with someone please, if it is immobilised,
>> does the engine still turn over or does it disable everything?
<snip>

>it spins over and the car with a spanner symbol lights

Right, thanks (again).

I think when the Rover 218SD immobilised itself it didn't even spin
over etc.

Cheers, T i m

Tim+

unread,
Nov 24, 2013, 8:25:06 AM11/24/13
to
Or do what the RAC man did and just give it a good thump. ;-)

Tim

T i m

unread,
Nov 24, 2013, 9:26:44 AM11/24/13
to
On Sun, 24 Nov 2013 13:25:06 +0000, Tim+
I have actually tried that already, in a combination of frustration
and as a 'see if it's a electrical- mechanical issue in the console'
but nothing happened. ;-(

Cheers, T i m

Mike Tomlinson

unread,
Nov 26, 2013, 10:35:58 AM11/26/13
to
In article <iq24995nrm41g0m7g...@4ax.com>, T i m
<ne...@spaced.me.uk> writes

>I have actually tried that already, in a combination of frustration
>and as a 'see if it's a electrical- mechanical issue in the console'
>but nothing happened. ;-(

You pay the RAC man not for thumping it, but for knowing *where* to
thump it :-)

--
(\_/)
(='.'=)
(")_(")

T i m

unread,
Nov 26, 2013, 1:23:50 PM11/26/13
to
As I'm with the AA would they also know where to thump it do you
think? ;-)

Cheers, T i m


T i m

unread,
Nov 28, 2013, 7:36:14 PM11/28/13
to
On Sun, 24 Nov 2013 10:21:55 +0000, Mrcheerful
<g.odon...@yahoo.co.uk> wrote:


>> Can I just qualify this with someone please, if it is immobilised,
>> does the engine still turn over or does it disable everything?

<snip>

>>
>it spins over and the car with a spanner symbol lights

Right, another code reader came today and this one gives you all sorts
of diagnostics and real time displays from all sorts of systems.

Whilst running some tests the ignition light was coming on, the clocks
dying but it was still starting ok.

The only system that didn't seem to want to display any metrics was
the 'Instruments'? BCM, ECU, ABS etc all chatted ok (on the different
pins as previously discussed here).

Tried the same thing in the Corsa C with the same results so I'm not
sure if it was a valid test or not (and cleared a few codes out of the
ECU whilst there). ;-)

Going back out there later the Meriva wouldn't start (span over ok)
with the dash showing these:

Ignition turn on:
https://dl.dropboxusercontent.com/u/5772409/Meriva%20no%20start%201.jpg

A couple of seconds later and from then on:
https://dl.dropboxusercontent.com/u/5772409/Meriva%20no%20start%202.jpg

However, the Immobiliser status read as:

Ignition Status,On 12V
Transponder Key,Transp. Key 1
Transponder Status,Correct TP-Key
Transponder-Key 1 Status,Programmed
Transponder-Key 2 Status,Programmed
Transponder-Key 3 Status,Not Programmed
Transponder-Key 4 Status,Not Programmed
Transponder-Key 5 Status,Not Programmed
Engine Request,Received
Immobiliser Signal,Transmitted
Security Wait Time,Inactive
Programmed Outputs,None

And that looks ok to me so if it wasn't immobilised, could we be back
to the crank sensor or could a dash plug fault have the same effect?

FWIW I found my original USB ELM 327 V1.4 and OBDAutoDoctor demo saw
the interface and car OK but by that time it wouldn't run so I
couldn't see if anything was going on. Maybe it will be ok in the
morning.

If it starts in the morning I'll see if my mate can put his Suntune on
it.

Cheers, T i m

Mrcheerful

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Nov 29, 2013, 3:05:16 AM11/29/13
to
those dash pics look normal, I would go back to basics: when it won't
start pull a plug lead off, stick an old plug in and see if it is
sparking ok when you turn it over.

T i m

unread,
Nov 29, 2013, 6:34:06 AM11/29/13
to
Ok.

> when it won't
>start pull a plug lead off, stick an old plug in and see if it is
>sparking ok when you turn it over.

In case it's not an ignition fault, like fuel injection or somesuch
(not sure what else it could be after that) you mean? I'm still going
along with the idea of it (also?) being a crank sensor so if I can get
it in my mates garage, maybe change that (anyway) at the same time.

FWIW, that car always starts 'on the button' and the fact that it
isn't suggests to me that there something 'more' (than just something
being wrong) is wrong, given the randomness of all the other things
that are going on.

Recapping out loud.

1) Randomly won't start, typically when it has been run briefly and
then left for a bit (3-4 times in two weeks so far).

2) When running, the instruments cut out (speedo, rev counter and
temp) the ignition light comes on. The instruments often recover
quickly but the ignition light never does (till the ignition is turned
off and on again).

3) The ignition light can come on when the vehicle is stationary and
can do so several times (after an ignition reset / restart),
potentially until the engine is warm then I'm not sure if it comes on
from that point (as if there is a thermal range that is sensitive).

4) It has never cut out the engine once running and it is charging
when the ignition light is on.

5) When it is running I believe it is running properly (not in limp
home etc).

6) There appear to be repeated fault codes indicating something is
wrong and that are 'known' for this range of vehicles (Meriva A /
Corsa C etc).

7) I have seen the Fault (Car / Spanner) light on a couple of times.

If I'd not had man flu, had a heated garage or been doing other stuff
in the meantime I'd have looked at more stuff by now. ;-(

Cheers, T i m

T i m

unread,
Nov 29, 2013, 1:32:44 PM11/29/13
to
On Fri, 29 Nov 2013 11:34:06 +0000, T i m <ne...@spaced.me.uk> wrote:

<snip>

>> when it won't
>>start pull a plug lead off, stick an old plug in and see if it is
>>sparking ok when you turn it over.


Ran the car down to my mate and we stuck his Sun Modus on it.

We saw the ignition light coming on, the instruments going off and on
but no better clues as to why than I already had with my OBD kit. ;-(

However, the experiment does seem to indicate some sort of thermal /
timing 'issue' in that even with us sitting with both front doors open
and the heater off, the 'problems' still appeared at around 80 deg
(engine) and then seemed to go away once properly hot.

Along with that we also saw mention of engine coolant temperature
sensor (I think) but there was no sense of any issue with that when
looking at the diagnostics.

So, I'm going to see if it will start every so often as it cools down
tonight and if / when it doesn't see if I can get any indication of
why (fuel pump / spark etc, I could put an old strobe on an HT lead if
it still has any). ;-)

Cheers, T i m

nor...@gmail.com

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Apr 19, 2014, 4:26:10 AM4/19/14
to
How did you finally solved the problem? My Meriva is doing completely the same. Please share the solution

Mrcheerful

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Apr 19, 2014, 4:45:14 AM4/19/14
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On 19/04/2014 09:26, nor...@gmail.com wrote:
> How did you finally solved the problem? My Meriva is doing completely the same. Please share the solution
>
see solved on the 10th of april, basically a reconditioned ecu
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