Citroën C4 Grand Picasso OBD2 Fuse Location: Power Issues & Diagnostic Socket Troubleshooting

Question

Hello, I have a problem with my Citroen C4 Grand Picasso, I do not have power on the obd2 diagnostic socket and I can not connect to the car with any computer, my question is if anyone knows where the OBD fuse is located in the C4 Grand Picasso?

pepe150 · Answer

Next to the OBD socket you have a fuse strip and a BSI with fuses. If the fuses are intact, maybe someone used a switch to power the OBD?

Mlerte · Answer

Problem solved
The 5a fuse located on the strip next to the battery was responsible for the lack of power in the OBD2 socket.
I have a blue cable with the number 4059 leading to it.
I also checked the masses that lead to the left threshold, they turned out to be good and I had a suspicion that there might be a lack of mass !!!.

Damian19771231 · Answer

Hello. I am a happy owner of a C4 grand Picasso and recently I have a similar problem with the OBD2 connector, i.e. no voltage at the connector. It is not possible to connect any device. My question is as follows
What should be the voltage on pin 16 in the OBD 2 connector?
I will add that the fuse is checked ok
Thank you
greetings

romuald-f · Answer

As the picture shows:

Damian19771231 · Answer

Thanks a lot I also add the installation diagram I think I found a fault. Tomorrow I will share information Thank you greetings Damian

korsarz50 · Answer

Maybe the C4 Grand Picasso 2008-2012 fuse table will come in handy From what which fuse. BSI fuses BSM fuses Battery fuses

radoslawdojlidko · Answer

Damian19771231
How did you solve the problem? I have a similar pain - no power on pin 16 OBD2 in C4 Grand Picasso. The 10A fuse (F4) in the board box is ok and there is voltage. The socket worked before and I could connect with a laptop for diagnosis, etc.

korsarz50 · Answer

Have you checked the fuse on the battery F5 (5A)? It may be burnt out. Some fuse slots may be empty.
Manual and automatic transmissions have different fuses.
Check F2 on the battery.
In the engine compartment, check F13.

radoslawdojlidko · Answer

Thanks for the help. I'll try to take a look after Christmas. I will add that my lemon is a Picasso 2.0 HDi with an MPC gearbox.

radoslawdojlidko · Answer

I rang all the fuses I could find and still nothing. The voltage on pin 16 of OBD2 is 0.2V instead of 12V.

Maliniaktg · Answer

from bsi green plug pin no. 2 power comes out? either this green plug or the bsi itself since the rest has been checked

radoslawdojlidko · Answer

Do you mean a plug like in the picture?

Maliniaktg · Answer

there you have everything described which plug color as you can see and how many pins it has, which would be easy to recognize if it enters the bsi and has 16 pins, then pin 2 should come out plus on obd 2 without any indirect connections on the way

in this diagram above it is the same, only it seems to me that mine are more readable, that's why I gave it

additionally fuse f5 fuse box in the engine compartment it goes out on the way there is a connection somewhere but where it's hard for me to say then it goes to obd on pin 16

Citroën C4 Grand Picasso OBD2 Fuse Location: Power Issues & Diagnostic Socket Troubleshooting

Post #1

Post #2

Post #3

Post #4

Post #5

Post #6

Post #7

Post #8

Post #9

Post #10

Post #11

Post #12

Post #13

Post #14

Topic summary