I want a circuit diagram of ecm of hyundai accent as i run a garage and i could repair a faulty ecm usin the diagram

Question edited for clarity.
Question moved to model category.

From what I gather from this video, it is a combined module ECM/TCM sharing the same box ECM on left and TCM on the right. There is a diagram showing it as well.

https://www.google.com/search?q=2016+Hyundai+Accent+SE.+TCM+location

https://www.2carpros.com/questions/2009-hyundai-elantra-tcm-location

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Tidied up the question a bit.
Question moved to sub category

Did the inability to start happen right after you put the new battery on? Did you reset the security system?

P0343 HYUNDAI Code Camshaft Position Sensor 'A' Circuit ...

https://www.autocodes.com > p0343_hyundai
Repair Information for P0343 Hyundai code. Learn what Camshaft Position Sensor 'A' Circuit Range/Performance means, location and how to repair?

Dirty connections and grounds!

P0626 OBD-II Trouble Code: Generator Field/F Terminal ...

https://www.yourmechanic.com > Articles
P0626 means there's a fault on the generator field circuit due to a faulty alternator, battery, wiring, or poor communication between control module.

P0342 HYUNDAI Code Camshaft Position Sensor 'A' Circuit ...

https://www.autocodes.com > p0342_hyundai
Repair Information for P0342 Hyundai code. Learn what Camshaft Position Sensor 'A' Circuit Low Input Bank 1 Or Single Sensor means, location and how to ...

790 pages of service info which may provide some help on 98 Accent 1.5 below
https://automotrizenvideo.com/wp-content/uploads/2011/11/manual-de-despiece-hyundai-accent-98-1.5-SOHC.pdf
If you are looking for all equipment which has a connector to the ecu or ecm a wiring diagram would provide info as to where the ecm get info from and where it sends it to.

https://www.cargurus.com/Cars/Discussion-c2203_ds502664
Some general info in link below. Basics of video crank sensor keeps blowing fuse to ecm.
https://www.youtube.com/watch?v=ubkHu4gPbbc

I really think you should go to www.reliable-store.com they have got books on every vehicle and also how to service/repair it, parts info, wiring diagrams, electrical diagrams, fuse diagrams, error codes, etc everything

P0103 HYUNDAI - Mass or Volume Air Flow Circuit High InputPossible causes- Dirty mass air flow sensor
- Dirty mass air filter
- Mass air flow sensor harness is open or shorted
- Mass air flow sensor electrical circuit poor connection
- Intake air leaks
- Faulty mass air flow sensor
Tech notesBefore replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with low compress air or mass air flow sensor cleaner. Reset code and drive vehicle. If the code comes back, it may be necessary to replaced the mass air flow sensor.
P0112 HYUNDAI - Intake Air Temperature Sensor 1 Circuit Low InputPossible causes- Dirty air filter
- Intake air temperature (IAT) sensor harness is open or shorted
- Intake air temperature (IAT) sensor electrical circuit poor connection
- Faulty intake air temperature sensor
When is the code detected?An excessively low voltage from the sensor is sent to ECM.

I think the 2004 Accent only came with a 1.6 liter engine as far as I know. In any case below is as much information I have as far as your code including a wiring diagram of that circuit (CMP sensor). The wiring diagram doesn't tell the wire colors but does tell you where the wire goes or what "pin" number it is at the connectors. I included the connectors which is by number and marked the ECM connector for you. I had a picture of the CMP sensor location but not the ECM location but can tell you the ECM connector is located behind the dash fuse panel. Hope this helps....

Find the fuel pump relay, connect across the contacts from B+ to the fuel pump. This will make the pump run continuously. see if the engine stays running. It may be a bad relay or a relay feed circuit which is also run the the auto shut down switch. Lee

doesnt exist only block diagram

these immobilisers on hyundai are a chip installation in key ? considering age of car and use of ign key it may well be the worne key ist causing intermitant problem ? ask mother did she get either another ign master key or a tag with the key code number stamped on it for obtaining a replacement key with the car ? as with each new hyundai you get 2x keys and either one of the above with all documents/handbooks etc try hyundai main office b4 you consider trying to cut out immobiliser? this would affect your insurance if it is stolen and found to not have working immobiliser

Problem solved. I had no choice, but to have the car towed to the
Hyundai dealer and at first they thought it was the ECM...
... (Because it had no sparks)
Which is very expensive, $800.00 in Canada...
But finally it was only the power relay of the ECM... $30.00... ouf!
Sometimes it can only be the ground wire, that goes into the car.

I'm posting this, so that if someone else has the same problem
maybe this will help you.

Have a nice day!

Jim