Master IV, 2,3DCi fault code CDT038015 SOLVED!

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Orchid70
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Master IV, 2,3DCi fault code CDT038015 SOLVED!

Post by Orchid70 »

Hi
The van is from 2011. (VIN VF1**************[VIN obfuscated, can be read by forum staff] )
Fault code 038015 Pre heating diagnosis connector open ciruite - appeared.
I was a bit fast and changed the plugs - it has run over 200000 km.
After that I started to check the voltage at the plugs - its constant ~5V.
So I changed the relay.
Still same.
Does someone have an idea to where to start looking next?
Thank you!
Last edited by Orchid70 on 26 Nov 2021, 16:59, edited 1 time in total.
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Orchid70
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x 5

Re: Master IV, 2,3DCi fault code CDT038015

Post by Orchid70 »

Its too cold outside at the moment. But I have checked this:
There is 12V into both red wires.
There is 3,5V on all the three other small wires with ignition on - untill the throttle body turns silent, then voltage drops to 0.
Does someone know how to test these relays? Perhaps have a wiring diagram for them?
The relay I got is used. So there is a possibility it is faulty. There is no glow plug light on this van, as far as I can see, so if you dont read the fault codes, you dont know something is wrong.
Tomorrow I will try to activate the relay with the computer and measure.
I would be very thankfull if someone had the wiring diagram for this engine/glow plug relay.
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Orchid70
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Re: Master IV, 2,3DCi fault code CDT038015

Post by Orchid70 »

The problem is solved!

When I realised there are TWO relays for glow plugs, that is, when I found the other relay - I found the problem.
The fault code 038013 is for the smaller relay (with only one connector, with a blue locking mechanism), behind the Plus pole for charging the battery. The part number is: 110678071R
The big realy (two connectors) has part number: 8200558438A

Well, the realy was ok, in the end, but when I removed the connector I happened to notise a small, small kind of damage. It only looked a bit dodgy, thats it. When I scrathed the surface with my nail, it looked like there was no wires inside. It was the grey/greyish, thinnest wire. 0,5 or thinner. Almost at the pin it self.
I removed the yellow locking plate and removed the female pin. And managed to repair it with a small piece of wire and crimps.
Everything back together and the fault code for "diagnose connection to pre heating realy" - gone.
It started to rain so didnt get any pictures.
When I repair wires on any car, I use these crimps (from an other repair):
P1080694.JPG
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mickthemaverick
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Re: Master IV, 2,3DCi fault code CDT038015 SOLVED!

Post by mickthemaverick »

Well done and good to see a write up for other member's benefit!! :)
Last edited by mickthemaverick on 26 Nov 2021, 19:11, edited 1 time in total.
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Orchid70
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Re: Master IV, 2,3DCi fault code CDT038015 SOLVED!

Post by Orchid70 »

Well - dont you just hate when you find 100 questions of the type you have - and NONE results =)
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Re: Master IV, 2,3DCi fault code CDT038015 SOLVED!

Post by Dormouse »

Thanks very much for your perseverance - both in solving your own problem and for sharing it here on FCF. It was a non standard problem with no real clues and no obvious codes to pinpoint the issue. It proves you are a capable problem solver with sound basic knowledge. Pat yourself on the back. Personally, I would have struggled with this one and I would like to think I could have solved it but who knows how long it would have taken. I speak for quite a few others when I say that it is a two way street here on FCF and while I don't always partake in a thread I do read it. The little nuggets that turn up are invaluable and add to all our "Knowledges".
Again thanks for being part of FCF. And to all the others who contribute, a big thank you too.
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Orchid70
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Re: Master IV, 2,3DCi fault code CDT038015 SOLVED!

Post by Orchid70 »

Thank you =)
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Dormouse
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My Cars: Peugeot 3008 Hybrid4, Fiat Ducato, Morris Mini.
plus notable cars I have owned :- Studebaker 1921, Daimler Consorts, Mercedes 220 Pontoon, Simca 1301, Austin Metropolitan, lots and lots of Minis, both steel and fibreglass bodied, Fiat 500F, Citroen GSA's, Skoda Estelle 120 Rally replica, DKW 1000S, Triumph Herald Estate, Warwick GT (very briefly)
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Re: Master IV, 2,3DCi fault code CDT038015 SOLVED!

Post by Dormouse »

No, thank you! I am just a spectator on the sidelines of this one.
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