'03 V70 Intermittent no start CEM-E000

[monkeh]

So, I am documenting this so hopefully Others can learn, Or someone might be out there to offer advice.
Dads 03 V70 with the d5 euro 3 lump.

Bought not so long ago. Weird thing was, when we test drove it it ran lovely. Then towards the end, It came up with "Brake failure, stop safely"
Anyway, long story short, we bought it, Whats the worst that could happen?

Yes,



Its now dead on the drive. Every so often itll throw that error message, with the dratted crank, no start. I found a dead in tank fuel pump. Replaced that and for a few weeks it would run nice. Then During random drives, It would judder then throw up the 'Brake failure' message. After that, it would refuse to start, Or start then immediately die. During that, we would lose all dash clocks apart from the fuel gauge.



CEM you say, DIM you say, Vida confirmed a CEM-E000 code.



Off goes the CEM to Lukas, He says its behaving... Send the DIM. DIM is now in Lukas' posession, I am not convinced he will find anything wrong. While removing the CEM, I spot a 'volvodiagnostic' sticker on it. (repaired already? F**k) Heart sinks, Then I remove the DIM. A different repairer label. (Double F**K!!!)


So, I am about to delve into canbus and wiring, A few pointers would be nice, Because I completely understand if the DIM and CEM come back as 'no fault found', and I dont expect Lukas to give me free phone advice. I have suspicions on:

• BCM - Brake failure message after a juddering? Coincidence?
• ECM - Weeks of reading that CEM could be getting hot?
• UEM - Strange error code on vida - Noisy canbus?
• Siren module - Bought with alarm service required, Noise on canbus?

Now, The questions.

Faultfinding on canbus, I read that a CEM-E000 could be noise on canbus line.
I will be unplugging modules. Is this advisable to help faultfind while battery is connected? I know it'll throw codes, I have VIDA to clear them.


Anyone run into this in the past? A good CEM and DIM, yet still issues with CEM communications?



Sorry for the long post. SWMBO is worried that I have been very quiet, staying up late, she thinks I am having an affair. No, this car is getting on my tits!

[oragex]

How many miles? AWD ?

The DIM may go dead, but it should not affect in any way the rest of the car - at least in most cases. Check its connector behind to be sure - battery disconnected. I've driven even without the DIM in the car, of course you get the SRS message and light.

The CEM in 03 is not a problem because it's the old type of CEM - unless it's a very late 03 and you got the new style. See Youtube to get which you have

I'm thinking in the first place at some power ground or cable, around the battery (like the black box near the battery), engine bay at the fuses box or the small cable near the starter. Maybe even a BCM but I don't see how it would affect the DIM. Worth checking everything because it looks like a power problem which would affect several things at once. Of course battery and alternator check. Disconnect the alarm siren at the fuse panel on the side of the dash.

[monkeh]

Its an early 03 model, 2wd.

I didnt think it was the DIM because the only fault that shows is the symptom of the 'brake failure' It was only sent at Lukas' request. According to various sites I've visited, thats also been their symptoms.


I have suspicions its the ABS/BCM.

The alarm module, if the battery had leaked excessively could also cause 'noise' on the canbus line and brick the system?
I read that the BCM is a canbus 'hub' and might also be bricking the system.
I assume you mean the black box by the battery, you mean the REM?
I do have a CEM-1C01 but I am putting it down to excessive cranking to try and start it. I wonder if that may be related to maybe a broken cable near the alternator? Is there a failurer point near that?

[oragex]

The red + cable from the battery goes into a small black box behind the battery, a owner found the box to the completely corroded inside (water was leaking from above, from a small rubber seal from the trunk cables)

BCM could be faulty, but I haven't seen another situation when it would also cause judder, no start, stall etc. But who knows..

The alarm siren may only trouble electrics such as remote door looks, sunroof, battery drain

Too much cranking overheats the starter and may damage it. At the starter you got a small cable that may rot inside the plastic jacket right near the connection - a bit hard to access

May also search for the brake pedal position sensor and clutch position sensor if it's manual

[monkeh]

Oh wait? You're Peppermint? I've trawled through most of your vids! Thanks for the help with those. Top man!


As for the contact box, All ok there. The only potential crusties I could find were on the towbar wiring. Same with water ingress on the lower taillight. Those are fixed now.
Will report back soon...

[oragex]

Welcome! Maybe also worth trying on other forums for more answers, another one like https://forums.swedespeed.com/forumd...S60-(2001-2010)

[Dazvolvo]

Originally Posted by monkeh

So, I am documenting this so hopefully Others can learn, Or someone might be out there to offer advice.
Dads 03 V70 with the d5 euro 3 lump.

Bought not so long ago. Weird thing was, when we test drove it it ran lovely. Then towards the end, It came up with "Brake failure, stop safely"
Anyway, long story short, we bought it, Whats the worst that could happen?

Yes,



Its now dead on the drive. Every so often itll throw that error message, with the dratted crank, no start. I found a dead in tank fuel pump. Replaced that and for a few weeks it would run nice. Then During random drives, It would judder then throw up the 'Brake failure' message. After that, it would refuse to start, Or start then immediately die. During that, we would lose all dash clocks apart from the fuel gauge.



CEM you say, DIM you say, Vida confirmed a CEM-E000 code.



Off goes the CEM to Lukas, He says its behaving... Send the DIM. DIM is now in Lukas' posession, I am not convinced he will find anything wrong. While removing the CEM, I spot a 'volvodiagnostic' sticker on it. (repaired already? F**k) Heart sinks, Then I remove the DIM. A different repairer label. (Double F**K!!!)


So, I am about to delve into canbus and wiring, A few pointers would be nice, Because I completely understand if the DIM and CEM come back as 'no fault found', and I dont expect Lukas to give me free phone advice. I have suspicions on:

• BCM - Brake failure message after a juddering? Coincidence?
• ECM - Weeks of reading that CEM could be getting hot?
• UEM - Strange error code on vida - Noisy canbus?
• Siren module - Bought with alarm service required, Noise on canbus?

Now, The questions.

Faultfinding on canbus, I read that a CEM-E000 could be noise on canbus line.
I will be unplugging modules. Is this advisable to help faultfind while battery is connected? I know it'll throw codes, I have VIDA to clear them.


Anyone run into this in the past? A good CEM and DIM, yet still issues with CEM communications?



Sorry for the long post. SWMBO is worried that I have been very quiet, staying up late, she thinks I am having an affair. No, this car is getting on my tits!

Did you find a solution for this please? I have the exact same issues including the buffering, brake warning and stalling and no restart (and also from Newport!)
Any help would be really appreciated it’s driving me mad! (Excuse the pun!)

[oragex]

Which year and drivetrain is yours ?

[Dazvolvo]

V70 2002 Diesel D5 manual.

[Hickop]

anyone fondt it out???