Technical Bravo 2010 Check engine & EOBD port fail

[Nikola95]

Bravo 1.6multijet 88kW.

Hello everybody, here is all problems at once;
Before 3 weeks - check engine, lasted for a day and disapeared.
3 days ago- check engine while driveing, full stop and unable to start the engine again. Ignition without throtle unauble, with throtle possible, abnormal engine behaviour, after 10 seconds shut off. Only one abnormal start ( rpm-s going up and down for cca 200rpm.
Tried to connect diagnostic, no link. On my friend car diagnostic is working.
On contact new warnings: winshield wipers automation unavailable,
low beam light automation unavailable.

BCM 32-pin connector voltage measurement:
15-23. 10.5V
1-9. 0V
6-14. 12.2V
Cigar lighter/power socket 12V (and accidentaly shorted, burned and replaced fuse

tried to reset by removing minus from battery for 10 mins and after getting more warnings: esp unavailable, hill helper unavailable, asr unavailable.
Almost all fuses replaced and problems still present.

Does anybody have an idea what is going on?
(Sorry for long post)

 

[bugsymike]

Suggest try testing all earth and live points from battery as known to corrode through.
I also use a "breakout box" plugged into EOBD port before the diagnostic tool is plugged into extra cable from breakout box.
This breakout box allows testing of the 16 pins from the EOBD port, there should be readings of earth and live voltages as well as the testing of canbus etc. but you will need to read up how to test that.

 

[Nikola95]

Thank you on reply, definetly will try that one.

Also tried to measure eobd connector via smaller wires connected to multimeter but seems incorrect or invalid (but on friends car got voltage on some pins, on mine 0).
Corrosion is present everywhere, from fuses to obd connector, bcm connector.
Trying to convince myself that some bad contact is cause of check engine and full stop

 

[Nikola95]

Suggest try testing all earth and live points from battery as known to corrode through.
I also use a "breakout box" plugged into EOBD port before the diagnostic tool is plugged into extra cable from breakout box.
This breakout box allows testing of the 16 pins from the EOBD port, there should be readings of earth and live voltages as well as the testing of canbus etc. but you will need to read up how to test that.

Connected another (cheaper) diagnostic, read P0488 Exaust Gas. Removed EGR valve and throtle body. It was fully clogged. With EGR cleaner spray, cleaned everything, mounted back, now working properly.
Had one mistake; while removing my battery was connected so ECU remember last stuck position and got another fault woth weird soung on contact on the valve. Removing minus from battery for 10min made reset of the ECU and now is good.

Thank you anyway for the response.

Suggest try testing all earth and live points from battery as known to corrode through.
I also use a "breakout box" plugged into EOBD port before the diagnostic tool is plugged into extra cable from breakout box.
This breakout box allows testing of the 16 pins from the EOBD port, there should be readings of earth and live voltages as well as the testing of canbus etc. but you will need to read up how to test that.

 

[bugsymike]

Connected another (cheaper) diagnostic, read P0488 Exaust Gas. Removed EGR valve and throtle body. It was fully clogged. With EGR cleaner spray, cleaned everything, mounted back, now working properly.
Had one mistake; while removing my battery was connected so ECU remember last stuck position and got another fault woth weird soung on contact on the valve. Removing minus from battery for 10min made reset of the ECU and now is good.

Thank you anyway for the response.

Glad you managed to fix it.
Good diagnostic tool is essential on modern cars.