02-11-2014, 08:17 PM
Ok this a bit of an odd one but I will try to explain what I know. I figure the more info the better so sorry if I go on a bit.
1.4 berlingo Mk 1 year 2000 left hand drive.
I bought this car a while ago as a non runner, a garage had fixed bad earthing points on inner pillar which were rusty but couldn´t get car started. All the earths tested ok so I got a Lexia and found the keys were not programmed to the car. Once I sorted this out all was fine...well kind of.... but not really.
If I take the car on a short run and turn the ignition off while the car is still cold the dash will make a repeated humming noise (which is the clocks repeatedly returning to 0) like it is trying to shut down or something. The next time I start the car the dash will be dead until everything has warmed up which can take quite a while. When the dash is dead with no lights or dials, everything still operates ok (indicators lights wipers etc.) I just cant see any information.
If I always run the car for long trips and it has a chance for the cabin to heat up then everything is fine, no problems at all.Â
What I find most odd is that it is all cured when the interior heats up. If I forget to put the heating on then it doesn´t matter how warm the engine is the problem will appear. I have found that the heating makes it very warm behind the dash but also where the Bsi is. I checked the Bsi for dry joints but would have to remove the needles to look at the instruments board.
When things are working ok I can get the Lexia working to do a global diagnostic, here is some of the information I get:
-no dialog with instrument panel
-airbag warning light short circuit to -ve or open circuit.
 airbag intemitent fault (not sure if this is relevant, might be caused by the other problems)
bsi-
-permanent fault
 no communication from Bsi on VAN
-permanent fault
 communication with the instrument panel absent
-permanent fault
 communication on DATA wire of comfort network.
-permanent fault
 communication on DATA B wire of comfort network.
*permanent fault
 evaporator sensor (? I don´t have climate control !)
*intemitent fault EOBD or engine ECU
another point:
I checked the twisted pair behind radio each to earth and was surprised that one was 1.5 volts lower than the other. Is that normal?
I have been using the car like this for years now so I have a very good idea of how it behaves.
now with a new MOT coming up in a few weeks and the problem worstning I have to get it sorted or the car will be scrap so would be very grateful of any advice.
any ideas?
1.4 berlingo Mk 1 year 2000 left hand drive.
I bought this car a while ago as a non runner, a garage had fixed bad earthing points on inner pillar which were rusty but couldn´t get car started. All the earths tested ok so I got a Lexia and found the keys were not programmed to the car. Once I sorted this out all was fine...well kind of.... but not really.
If I take the car on a short run and turn the ignition off while the car is still cold the dash will make a repeated humming noise (which is the clocks repeatedly returning to 0) like it is trying to shut down or something. The next time I start the car the dash will be dead until everything has warmed up which can take quite a while. When the dash is dead with no lights or dials, everything still operates ok (indicators lights wipers etc.) I just cant see any information.
If I always run the car for long trips and it has a chance for the cabin to heat up then everything is fine, no problems at all.Â
What I find most odd is that it is all cured when the interior heats up. If I forget to put the heating on then it doesn´t matter how warm the engine is the problem will appear. I have found that the heating makes it very warm behind the dash but also where the Bsi is. I checked the Bsi for dry joints but would have to remove the needles to look at the instruments board.
When things are working ok I can get the Lexia working to do a global diagnostic, here is some of the information I get:
-no dialog with instrument panel
-airbag warning light short circuit to -ve or open circuit.
 airbag intemitent fault (not sure if this is relevant, might be caused by the other problems)
bsi-
-permanent fault
 no communication from Bsi on VAN
-permanent fault
 communication with the instrument panel absent
-permanent fault
 communication on DATA wire of comfort network.
-permanent fault
 communication on DATA B wire of comfort network.
*permanent fault
 evaporator sensor (? I don´t have climate control !)
*intemitent fault EOBD or engine ECU
another point:
I checked the twisted pair behind radio each to earth and was surprised that one was 1.5 volts lower than the other. Is that normal?
I have been using the car like this for years now so I have a very good idea of how it behaves.
now with a new MOT coming up in a few weeks and the problem worstning I have to get it sorted or the car will be scrap so would be very grateful of any advice.
any ideas?