Laguna 2 1.9 Dci Errors: Module Damage, Incorrect Signal Relay 15, UCH Controller Fault

Hello, Laguna after turning off does not fire, after connecting to the pc jumped the following errors
1. Control module - damage to the controller
2. Relay 15 circuit - signal incorrect
3. UCH controller fault - fault not identified
4. P / N circuit breaker - short to plus
5.Communication with a Card reader - the signal is not correct
6. Card reader - limit switch - break

What could this happen from? The car drove normally until it went out. I will add that after inserting the card, the R8 relay causes the 'Christmas tree' on the board and it is ticking all the time, after removing it the Christmas tree disappears, the lights are on but this from immo does not go out. After pressing 'start' the starter does not turn and only 'ticking' can be heard
Please help.

The battery may have run out.

Added after 35 [seconds]:

See if the lights give you a passing or traffic candle.

Aku ok. Do you think these errors could have caused the battery?

The R8 relay powers the motor controller.
Since it 'rings', i.e. it lacks weight from the controller or plus.
Check the fuse FM3 and FM6 in the box where this relay is.
Plus on the relay is from the fuse FM3 (30A).
The motor controller is powered by FM6 (10A).
Check both power supplies to see if it's ok and if everything connects there.
See if mass or plus disappears on the relay.
Enter the engine designation.
I mean F9Q ???
The reason for your problems is the loss of control of this relay.

grala1 wrote:

The R8 relay powers the motor controller.
Since it 'rings', i.e. it lacks weight from the controller or plus.
Check the fuse FM3 and FM6 in the box where this relay is.
Plus on the relay is from the fuse FM3 (30A).
The motor controller is powered by FM6 (10A).
Check both power supplies to see if it's ok and if everything connects there.
See if mass or plus disappears on the relay.
Enter the engine designation.
I mean F9Q ???
The reason for your problems is the loss of control of this relay.

Will FM3 and FM6 be under the hood or at the door?
Added after 3 [minutes]:
I have something like that

Under the hood, the same box where you found R8.
It's those little fuses.
I see that you have Vis so there will be no problem with the diagrams.
Write if you have a Bosch or Siemens driver.

Unfortunately, I do not know electronics, I only have a part of Vis. Where can I find this driver?

Added after 4 [minutes]:

Wheel 14 will provide more detailed information about the engine and controller

At number 9 there is an engine controller
No. 10 is a box with the fuses and R8 relay in question.
Check at this time what the relay is missing.
The relay has 4 contacts.
You are interested in contacts:
85 - minus ("mass")
86 - plus
Check these fuses and whether there is power on them when you plug a light bulb under them and give the other pole to the ground.

Okay, thanks a lot. I will check in the morning. If I couldn't do it myself, do you know what the cost of repair would be?

grala1 wrote:

At number 9 there is an engine controller
No. 10 is a box with the fuses and R8 relay in question.
Check at this time what the relay is missing.
The relay has 4 contacts.
You are interested in contacts:
85 - minus ("mass")
86 - plus
Check these fuses and whether there is power on them when you plug a light bulb under them and give the other pole to the ground.

The relays are ok, the fuses too. Bosch controller

What about checking the rest?
You haven't really checked anything.
It is not known what the relay is missing and whether the fuses have power.

The car was at the Elektromechanika - the fuel pump hung + the sensor on the strip was replaced

gazuplemiona wrote:

the fuel pump has hung up

Have you replaced the fuel pump? The electric one?

No, the electro mechanic says he fixed this one

gazuplemiona wrote:

No, the electro mechanic says he fixed this one

Unreal.

Real and very, I paid PLN 100 for the repair

A new pump costs so much.

a0afek wrote:

A new pump costs so much.

Forget it. these pumps are not demountable, the fault will come back.