Citroen Berlingo B9 2016 wont crank

[onogcv]

hello,

I have a berlingo b9 2016 (VIN: VF7**************[VIN obfuscated, can be read by forum staff]) , i have disconnect the battery and after check a wiring issue from ECU and BSI its give me error no ecu communication and wont crank.

I find this dtc
BSI
9528 fault: no starter command
F534 fault engine ecu or incorrect configuration BSI
F015 no communication with engine ECU
on live data the ecu is lock

DTC on ABS
U1108 87 communication with engine ecu

Can some one send me the wiring diagram of the BSI ,ECU (edc17c60), PSF, fuse box and ABS. And what process i can do

Its my work car

best regards to all

[gaston76]

Im no expert on electronics but i reckon a BSI reset cant hurt? Since you have been checking wires inbetween the ECU and BSI you might have caused a hangup in the communication between the systems. its worth a try before going deeper i think. there are guides online on how to a BSI reset but check beforehand that it applies to your model and model year

[onogcv]

Great, yes i see i didnt do the bsi reset. i will check it and feedback

[onogcv]

Hello the bsi reset is not work since i have the key fob without remote. What the bsi reset in this case?

[ozvtr]

Hopefully Marc (givemeabreak) will pop up with the wiring diagram.

The BSI and engine ECU communicate on the CAN BUS through the ABS ECU.

What's happening is that both the BSI and ABS ECU are complaining that they cant communicate with the engine ECU.
There is probably a "lock out" protocol in the BSM which stops the starter motor from engaging if there is no engine ECU communications. The "start" command comes from a single wire on the starter switch to the BSM, however, the starter relay is driven from the BSM, not this wire. So the starter motor not engaging, I would say, is "normal" and I wouldn't be concerned about that.

The two probable causes are either a power supply problem with the engine ECU or a break in the CAN BUS line between the ABS ECU and the engine ECU.

Check the engine ECU fuses in the BSM (engine bay fuse box). Check the electrical connector on the ABS ECU for corrosion. Check the engine ECU electrical connectors for corrosion. Check for damage to wiring from the ABS ECU and BSI to the engine ECU.

[onogcv]

Thank for your explanation ozvtr. I need wiring diagram to check the wiring from ABS to engine ecu. I have found one missing 12V from BSM to Engine ecu. But i need to confirm it. I have check yhe can line from BSI to Engine ECU and its all good and i have scope the can have too. But i didnt check with ABS.

Can someone send me the wiring diagram from Engine, ABS, BMS BSI and enyine starting

Wish a?l happh new year

[ozvtr]

Thank for your explanation ozvtr. I need wiring diagram to check the wiring from ABS to engine ecu. I have found one missing 12V from BSM to Engine ecu. But i need to confirm it. I have check yhe can line from BSI to Engine ECU and its all good and i have scope the can have too. But i didnt check with ABS.

Can someone send me the wiring diagram from Engine, ABS, BMS BSI and enyine starting

Wish a?l happh new year

If the CAN lines are active at the engine ECU connector (wiring loom side) then the problem is most likely power. Without the circuit diagram, you wont be able to confirm all the power lines to the engine ECU.
There will be a number of dedicated power lines to the engine ECU. The problem I have is: why did you loose power? If the fuse blew...why? If there is no corrosion on the engine ECU connectors, then it's unlikely to be a bad connection. It's possibly a faulty relay in the BSM but all of this is just speculation.
Sorry but until you get the circuit diagram there isn't much more you can do.

[onogcv]

Hello, can someone send me the abs bsi ecu and bsm wiring diagram. I found a error on abs module to ask for can high issue.

Its possible send me all the wiring diagram to solve this issue

[GiveMeABreak]

Sorry, but I don't have the wiring circuit for this engine and build date.

[onogcv]

Hello guys, i find the problem. Ecu is lock and i need to matching again with the bsi. Can someone send the procedure to do it? Apreciate

Bes regards