Xantia engine wont start - bad electric contact when cold - Solved

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Jaya123
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Re: Xantia engine wont start - bad electric contact when cold - Solved

Post by Jaya123 »

Hi Sohan and Admin,
I have a similar issue with immobilizer not working specially on rainy days and the yellow color key indicator do not show in the dash board lights. Can you please share the wiring diagrams ?
About the fuse 9 you talked about earlier in the fuse box under steering wheel, is a 5 A fuse in my car. How ever temperatures here in Sri Lanka don't go below 20 C. I think the issue is in CPH after checking this tread but have no idea how to diagnose in. Any help mostly welcome.
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Re: Xantia engine wont start - bad electric contact when cold - Solved

Post by lancia58 »

Hi

It may be that some rain penetrates the car and drips on the CPH. The wiring diagram won't help. The CPH is located behind the glove box. You should detach the glove box, and see if the CPH gets wet. To detach the glove box open the lid and remove all screws. One screw is covered with that black cloth that is adhered to the glove box. Pull it and it will come out than remove the screw. The CPH is a black box on the left side. Two connectors are hooked onto it, unplug the connectors and detach the CPH and check if it comes wet.

Hope that helps
Zohar
Xantia 2.0 16V Automatic make year 2000 LHD
Citroen C4 THP Automatic make year 2009 LHD
Citroen C4 VTS 2.0 16V make year 2006 LHD
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Re: Xantia engine wont start - bad electric contact when cold - Solved

Post by rodbonello »

Hi everyone, I had a similar problem as described above on an xsara 1999 1.4i. The car was having issues with intermittent flickering interior light and key buzzer, intermittwent operation of central locking and inability to start. This was happenning more on cold days. I've put the cph module in the freezer for 5mins and all of interior lighting and central lock including starting the engine did not work thereafter until I heated the main controller of the cph module by a hair dryer. I decided to retouch all the solder of this controller just to rule out any dry joints issue but thereafter the cph module was completely not functional. It seems that the extra heat of the soldering had driven the main controller to a complete failure.

I was relucntant to buy a new cph module and have it programmed by a lexia as it was going to cost me quite a few so , thanks to your thread above , I had bought a used cph from ebay and swapped the small 8pin eeprom chip near the controller with the one on the faulty cph that has the code corresponding to my keys and it worked!

Thanks a lot for your help and for writing what you found here
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Re: Xantia engine wont start - bad electric contact when cold - Solved

Post by xantiamanolis »

hello my friends from Greece, 3 months ago I had a problem with starting my xantia 2 1800 16v mod 2000 car, the starter was turning but the engine wouldn't start, I had no indication on the dial of a problem immo also when I unlocked the doors the interior light came on and it turned off immediately whereas normally it should stay on for about 30 seconds also when I opened the doors I had the interior lighting flashing and you could hear the relay from the texton cabin brain all these symptoms with outside temperatures below 7 degrees, the same symptoms also happened to a xantia 2 activa of my friend. started, the temperature inside the vehicle had to reach about 20 degrees
this is the problem, gentlemen, its solution
there are 2 smd type electrolytic capacitors on the board with characteristics 100uf 50v and 100uf 16v
change them at someone who has an electronic workshop and the car will never have a problem again
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Re: Xantia engine wont start - bad electric contact when cold - Solved

Post by CitroJim »

Thanks! Very useful to know :D Electrolytics do cause lots of problems in all sorts of electronic equipment, not just car ECUs...
Jim

Runner, cyclist, time triallist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
lancia58
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Re: Xantia engine wont start - bad electric contact when cold - Solved

Post by lancia58 »

xantiamanolis wrote: 19 Mar 2023, 07:58
this is the problem, gentlemen, its solution
there are 2 smd type electrolytic capacitors on the board with characteristics 100uf 50v and 100uf 16v
change them at someone who has an electronic workshop and the car will never have a problem again
Can you please add a photo showing these capacitors ?

Thanks
Zohar
Xantia 2.0 16V Automatic make year 2000 LHD
Citroen C4 THP Automatic make year 2009 LHD
Citroen C4 VTS 2.0 16V make year 2006 LHD
xantiamanolis
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Citroen Xantia II 1600 1999
Citroen Xsara II 1400 petrol 2003

Re: Xantia engine wont start - bad electric contact when cold - Solved

Post by xantiamanolis »

Copy of IMG_20230110_140629.jpg
look the slim black line
lancia58
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Re: Xantia engine wont start - bad electric contact when cold - Solved

Post by lancia58 »

Hi,

Can you please mark the capacitors on the photo

Thanks
Zohar
Xantia 2.0 16V Automatic make year 2000 LHD
Citroen C4 THP Automatic make year 2009 LHD
Citroen C4 VTS 2.0 16V make year 2006 LHD
xantiamanolis
Posts: 9
Joined: 16 Apr 2019, 19:26
Location: preveza greece
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Fiat brava 2001 1200cc SX
Fiat Chinguecento sporting Abarth
Citroen Xantia II 1600 1999
Citroen Xsara II 1400 petrol 2003

Re: Xantia engine wont start - bad electric contact when cold - Solved

Post by xantiamanolis »

lancia58 hallo look please the previous foto zoom this foto and look the slim black line
lancia58
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Re: Xantia engine wont start - bad electric contact when cold - Solved

Post by lancia58 »

Thanks
Xantia 2.0 16V Automatic make year 2000 LHD
Citroen C4 THP Automatic make year 2009 LHD
Citroen C4 VTS 2.0 16V make year 2006 LHD
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