Check Engine Warning Light and Limp Mode

[Dave237]

Hi, a Newbie just joined - if I'm honest, in desperation. I have a 2012 Bailey Approach 745 with a Peugeot Boxer Cab. Last May the Check Engine warning light came on and the engine went into limp mode (on the M6). I got recovered to Services but when the OBD code reader was put on there was no fault. I carried on the rst of the holiday with no problem. I got a full service straight away all the filters changed etc. Since then after 4 more trips away this has reoccurred twice. Each time it gets stuck in limp mode and I have to get recovered. Each time there is no fault when I get home, the light goes off and we continue normally till the next time ??
Whoever recovers me usually says there's probably either an intermittent fault or faulty sensor. But how do I find it ?
Anyone seen this before or got any suggestions or ideas ?

 

[gus-lopez]

Are you by any chance touching the brake pedal at the same time as the accelerator? This will bring on the eml & limp mode.
This can also be brought on by a badly adjusted brake pedal switch & excessively rough roads.
usually though taking foot off will put the light out but it might be that the engine has to be turned off then back on to get rid of the eml?

 

[Dave237]

Thanks for the reply. Didn't think I was touching both pedals.
I read the fault code with a code reader today. It was P15BE which appears to be something to do with fuel injectors and emission particulate control. I erased the fault code and the warning light is off and the engine is not in limp mode. But I'm sure it won't last and will happen again as soon as I drive out. It may be 10 miles or 110miles but it will happen again as its done before and I can't find out why.
Phoned some garages today but nobody prepared to look at a 7.4m motorhome weighing over 3 tons. Not even the local Peugeot Dealer. Someone suggested fitting a new cab battery and see how it goes. Seems an expensive 'see how it goes' to me.
Anyone had this before ?

 

[Figaro]

Can't help but

 

[Googlebot]

Have you tried a specific Peugeot code reader? Some code readers are a bit funny about different models. For instance on some models you have to tell the computer they are a different engine and model as it’s the same engine across different manufacturers.

This for instance isn’t cheap, but probably the same price as getting Peugeot to even look at it.

Foxwell NT530 Plus Professional Multi-System Scan Tool for Peugeot and Citroën Vehicles

Foxwell NT530 Plus Professional Multi-System Scan Tool for Peugeot and Citroën Vehicles - only £164.00 including VAT & UK delivery!

m.gendan.co.uk

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[VXman]

Don't see what replacing the battery had to do with it!

I've not read it fully but there is a similar thread here -

First outing this year and came home in Limp Mode.

40 miles up the road and the engine icon appears on the display followed by an warning message. Couple of hundred yards and we go into limp mode, fortunately not too far from a lay by. Sat there for half an hour having a cup of tea and tried it again and all alerts gone so on we went for another...

www.motorhomefun.co.uk

 

[VXman]

Are you by any chance touching the brake pedal at the same time as the accelerator? This will bring on the eml & limp mode.
This can also be brought on by a badly adjusted brake pedal switch & excessively rough roads.
usually though taking foot off will put the light out but it might be that the engine has to be turned off then back on to get rid of the eml?

I have experienced this. It didn't bring on any eml or codes though. Just lost power. Turn off engine and restart and all is ok again.

 

[Sue and Rick]

Thanks for the reply. Didn't think I was touching both pedals.
I read the fault code with a code reader today. It was P15BE which appears to be something to do with fuel injectors and emission particulate control. I erased the fault code and the warning light is off and the engine is not in limp mode. But I'm sure it won't last and will happen again as soon as I drive out. It may be 10 miles or 110miles but it will happen again as its done before and I can't find out why.
Phoned some garages today but nobody prepared to look at a 7.4m motorhome weighing over 3 tons. Not even the local Peugeot Dealer. Someone suggested fitting a new cab battery and see how it goes. Seems an expensive 'see how it goes' to me.
Anyone had this before ?

Try a forced regeneration. If it fails then you know where to start.
Proper software will tell you when it last regenerated etc.
Try the peugeot forums someone may have a clone of the software near you.

 

[TerryL]

There's a Fiat trick of switching engine off and back on again (rev to alternator starts charging) 5 times. Sometimes clears a temporary fault. Don't know if it will work with a Peugeot, or maybe there's another similar method.

 

[Jo662]

I did have the same problem, but with a code P0268,which was an injector problem. I kept clearing the fault ,until I couldn’t do it anymore. Ii had to have the injectors replaced.

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[BikerGraham]

Have you tried a specific Peugeot code reader? Some code readers are a bit funny about different models. For instance on some models you have to tell the computer they are a different engine and model as it’s the same engine across different manufacturers.

This for instance isn’t cheap, but probably the same price as getting Peugeot to even look at it.

Foxwell NT530 Plus Professional Multi-System Scan Tool for Peugeot and Citroën Vehicles

Foxwell NT530 Plus Professional Multi-System Scan Tool for Peugeot and Citroën Vehicles - only £164.00 including VAT & UK delivery!

m.gendan.co.uk

Will this one also reset TPMS, service and oil systems and ad blue countdown faults on the Peugeot boxer by any chance.
If not then do you know what would ?

 

[Sue and Rick]

I use a Diagbox clone. My supplier was easydiagnostics. He is very helpful.
I have not used the ad blue thing as my vans havent had that but it does the tpms and service resets. You do need a good adapter for the Peugeot Boxer. The chinese copies are poor. I made an adapter for my Euro 5 without adblue.

Its basically a clone of the manufacturer software.

 

[BikerGraham]

I use a Diagbox clone. My supplier was easydiagnostics. He is very helpful.
I have not used the ad blue thing as my vans havent had that but it does the tpms and service resets. You do need a good adapter for the Peugeot Boxer. The chinese copies are poor. I made an adapter for my Euro 5 without adblue.

Its basically a clone of the manufacturer software.

Any idea of a standalone plug in unit like the one mentioned above or a Launch or Autel model

Main reason is whilst the ad blue is sorted now. Am wanting to be able to reset it should it go into fault mode and start counting down when am say away on a month long holiday in France or Spain or similar.
Thanks
Graham

 

[Sue and Rick]

Any idea of a standalone plug in unit like the one mentioned above or a Launch or Autel model

Main reason is whilst the ad blue is sorted now. Am wanting to be able to reset it should it go into fault mode and start counting down when am say away on a month long holiday in France or Spain or similar.
Thanks
Graham

Sorry I dont know of or use a stand alone. I take my laptop with me on long trips and it has it on that.

 

[Googlebot]

Will this one also reset TPMS, service and oil systems and ad blue countdown faults on the Peugeot boxer by any chance.
If not then do you know what would ?

Hi Graham,

I presume so as it has 2 way communication.

However I would ring Gendan who sell it. Everyone on the Fiat forum speak very highly of their advice and they were spot on when I got MultiECUscan for mine.

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[BikerGraham]

Hi Graham,

I presume so as it has 2 way communication.

However I would ring Gendan who sell it. Everyone on the Fiat forum speak very highly of their advice and they were spot on when I got MultiECUscan for mine.

Thanks worthwhile asking.

 

[Bessy765]

Same year, same engine, same fault. It was a bad connection on the plug at the end off the common rail.

 

[neilydun]

Try a forced regeneration. If it fails then you know where to start.
Proper software will tell you when it last regenerated etc.
Try the peugeot forums someone may have a clone of the software near you.

Would a 2012 have a dpf ?

 

[Googlebot]

Try a forced regeneration. If it fails then you know where to start.

I would be careful with that, if the DPF is blocked you can crack it doing a forced regeneration. Everything I have researched recommended cleaning it and letting it do it on a drive when the ECU required it after resetting anything you found wrong and corrected. DPF’s normally block for a reason apparently and it’s finding why which is the key bit.

Of course if it won’t do it normally, you won’t have a choice but it’s a last resort.

Would a 2012 have a dpf ?

Yes, compulsory from 2009.

 

[Sue and Rick]

I would be careful with that, if the DPF is blocked you can crack it doing a forced regeneration. Everything I have researched recommended cleaning it and letting it do it on a drive when the ECU required it after resetting anything you found wrong and corrected. DPF’s normally block for a reason apparently and it’s finding why which is the key bit.

Of course if it won’t do it normally, you won’t have a choice but it’s a last resort.


Yes, compulsory from 2009.

I'm not 100% sure but if its blocked i think the software wont do the regeneration.

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[RobertJary]

Where about are you in the UK? I take our Frankia, 7.2m and 4.6T to a local commercial vehicle garage. It's one of the smaller vehicles they deal with - I've seen big coaches and double deckers in their workshop.

 

[bri]

Hi, a Newbie just joined - if I'm honest, in desperation. I have a 2012 Bailey Approach 745 with a Peugeot Boxer Cab. Last May the Check Engine warning light came on and the engine went into limp mode (on the M6). I got recovered to Services but when the OBD code reader was put on there was no fault. I carried on the rst of the holiday with no problem. I got a full service straight away all the filters changed etc. Since then after 4 more trips away this has reoccurred twice. Each time it gets stuck in limp mode and I have to get recovered. Each time there is no fault when I get home, the light goes off and we continue normally till the next time ??
Whoever recovers me usually says there's probably either an intermittent fault or faulty sensor. But how do I find it ?
Anyone seen this before or got any suggestions or ideas ?

Ours does it often Fiat , had all the checks changed both batteries over the last year.
Can go months then can do it 3/4!times over a week .We pull in as soon as possible, wait a few minutes turn back on and we are ok . The engine light goes off , Hope this helps x

 

[Jay L]

Happened to me as well. Needed new exhaust sensor.

 

[VXman]

Any idea of a standalone plug in unit like the one mentioned above or a Launch or Autel model

Main reason is whilst the ad blue is sorted now. Am wanting to be able to reset it should it go into fault mode and start counting down when am say away on a month long holiday in France or Spain or similar.
Thanks
Graham

This is what I bought. You need a PC with Windows 10 or 11. Its a great bit of kit. not only diagnoses and clears faults but has a load of other interesting features to play with.

MultiECUScan CAN-only Diagnostic Bundle for some Fiat and Alfa Romeo cars (Single PC)

MultiECUScan CAN-only Diagnostic Bundle for some Fiat and Alfa Romeo cars (Single PC) - only £112.94 including VAT & UK delivery!

www.gendan.co.uk

 

[HaylingIslander]

Hi, a Newbie just joined - if I'm honest, in desperation. I have a 2012 Bailey Approach 745 with a Peugeot Boxer Cab. Last May the Check Engine warning light came on and the engine went into limp mode (on the M6). I got recovered to Services but when the OBD code reader was put on there was no fault. I carried on the rst of the holiday with no problem. I got a full service straight away all the filters changed etc. Since then after 4 more trips away this has reoccurred twice. Each time it gets stuck in limp mode and I have to get recovered. Each time there is no fault when I get home, the light goes off and we continue normally till the next time ??
Whoever recovers me usually says there's probably either an intermittent fault or faulty sensor. But how do I find it ?
Anyone seen this before or got any suggestions or ideas ?

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[HaylingIslander]

Our Fiat suffers from BOT (brake over throttle). You hardly have to touch the brake pedal at the same time as the throttle. When it happens try taking your foot off the throttle, count to three and you should be good to go. It is common but no one seems to know about it. Even Fiat said they hadn’t heard of it but try Googling it and you will see how common it is. Good luck

 

[Googlebot]

This is what I bought. You need a PC with Windows 10 or 11. Its a great bit of kit. not only diagnoses and clears faults but has a load of other interesting features to play with.

MultiECUScan CAN-only Diagnostic Bundle for some Fiat and Alfa Romeo cars (Single PC)

MultiECUScan CAN-only Diagnostic Bundle for some Fiat and Alfa Romeo cars (Single PC) - only £112.94 including VAT & UK delivery!

www.gendan.co.uk

Same here, think Graham was asking about Peugeot though.

Paid for itself the first time I used it.

 

[trevor 87]

Thanks for the reply. Didn't think I was touching both pedals.
I read the fault code with a code reader today. It was P15BE which appears to be something to do with fuel injectors and emission particulate control. I erased the fault code and the warning light is off and the engine is not in limp mode. But I'm sure it won't last and will happen again as soon as I drive out. It may be 10 miles or 110miles but it will happen again as its done before and I can't find out why.
Phoned some garages today but nobody prepared to look at a 7.4m motorhome weighing over 3 tons. Not even the local Peugeot Dealer. Someone suggested fitting a new cab battery and see how it goes. Seems an expensive 'see how it goes' to me.
Anyone had this before ?

There are a couple of videos on YouTube for your fault code. One is the vaporiser fuse. And the other one is the actual removal of the vaporiser lhope you find this interesting and helpful you also need to buy a bidirectional scanner as these are an inv tool for testing and fault finding and code clearing

 

[BikerGraham]

This is what I bought. You need a PC with Windows 10 or 11. Its a great bit of kit. not only diagnoses and clears faults but has a load of other interesting features to play with.

MultiECUScan CAN-only Diagnostic Bundle for some Fiat and Alfa Romeo cars (Single PC)

MultiECUScan CAN-only Diagnostic Bundle for some Fiat and Alfa Romeo cars (Single PC) - only £112.94 including VAT & UK delivery!

www.gendan.co.uk

thans mate, appreciate the info. From what I hear it is no good for Peugeot.

Same here, think Graham was asking about Peugeot though.

Paid for itself the first time I used it.

thats correct GB.

I ahve seen a few vids about Launch and been in touch with them and apparently the X431 pro elite will reset the adblue countdown on a Peugeot Boxer.

So am looking at getting one of them. A bit of serious kit but it it does od it thne I will relax when in Spain next month.

 

[Googlebot]

thans mate, appreciate the info. From what I hear it is no good for Peugeot.

thats correct GB.

I ahve seen a few vids about Launch and been in touch with them and apparently the X431 pro elite will reset the adblue countdown on a Peugeot Boxer.

So am looking at getting one of them. A bit of serious kit but it it does od it thne I will relax when in Spain next month.

6k the one Jimmy O’Reilly uses. I looked and then settled for the cheap one.

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