renault Espace III 2000, 2.2 td - Espace III does not start, no communication wi

Hello, I need a communication bus diagram or motor driver pinologies.
The car stopped firing. The ECU was replaced due to the rotten contacts in the old one. After replacing the ECU and before, there was no communication with the interface.
In addition, the car can start and when it starts, it goes to extinction.
Normally, when I turn the key, the red indicator of the immobilizer does not go out and then it does not turn on, sometimes when it goes out, the engine starts.
Error in the DF063 immo module - no confirmation from the solenoid valve.
What I noticed even when I completely disconnect the ECU, the immo light is red and the same error pops up in the immo module.
So I suppose the problem is somewhere with the ECU communication but nowhere I can get schematics so that I can check anything.
Maybe someone can help me.

If the contacts in the old one are rotten, what is the condition of the ECU connector?

The ECU connector has been cleaned and checked. As I had dismantled the new ECU for immo memory soldering, I checked the transition between the wires and the ECU board. I just don't know which are the communication and power pins.

Added after 15 [hours] 18 [minutes]:

Is there anyone who can help me?

Maybe someone will give you an idea.

Buddy, give the type, model of the engine driver and you need to find ground power and communication under it

My fellow engine driver is Bosch 0 281 001 590.
If you have any information, please, please. I researched a lot and can't find any information anywhere.

Hello, check the bolt

Moderated By T5:

3.1.11. Don't post messages that add nothing to the discussion. They are misleading, dangerous or do not solve the user's problem.

What do you mean?

Hello, the bolt is the electronic lock of the ignition switch, the immo information passes through it, move the steering wheel vigorously and see if you hear a grinding noise

In Espace III, there is no bolt, there is an ordinary ignition.

In the evening I will give power to the controller but in these models the ear module under the passenger's feet often failed, I can make the controller off as the power supply will match

Hello, t5, as usual, fast gives power to the computer pin 16 and 33 plus after ignition pin 17 18 35 34 ground.
If the power supply is ok, it is connected to the fire extinguisher on the pump, checking the power supply on the fire extinguisher 3 wires plus minus and a signal

The valve coded on the pump is opened there and after the procedure.

Ok. today I will check the power and let you know.

Power and ground come on. Regarding the valves on the pump:
1. Mounted from the top - it is not a solenoid valve, but a potentiometer connected to the lever to which the throttle cable is connected.
2. An electrovalve is mounted on the bottom. Power comes after ignition, while ground from the ECU. even when I give the weight, you can hear the valve for a short time but the car does not start.

I have heard that you can replace the valve in the pump with a regular one and it will work, but I don't know which one and whether it applies to my case.

I attach a photo of the pump with a visible potentiometer .

The only option to start the vehicle is to replace the coded valve on the pump with a regular one powered after ignition. Can someone suggest:
1. How to get to this coded valve, because it is built-in?
2. What type or model of a regular solenoid should I look for?

Arekst8 wrote:

How to get to this coded valve, because it is built-in?

Cutting

Arekst8 wrote:

What type or model of a regular solenoid should I look for?

The store will know