FCIM Fault - Passenger Restraint LED not working causing Airbag Light.

[jdanie45]

Good day, I recently got an airbag light on my cluster. I managed to get access to Forscan and got the error code for B1202 "Restraint Passenger Enable Indicator".
I noticed on my FCIM panel display my 4th LED which shows baby seat occupancy was not coming on as i turn my ignition on which it usually did for self test. I proceeded to remove the FCIM and removed the PC board. I had all 4 LED tested (Diode test) for the passenger restraint system and technician confirmed the 4th LED was not working. He said if I can source the LED he can change for me. Does anyone know where I can procure this LED, it's a surface mount LED with 4 Legs, amber in color. Please see below pic with LED circled.

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[airline tech]

I have not dealt too much with board level repairs (I have done a few - (TV & Dishwasher) In Aviation things like this go back to the Vender or In-House (Back-Shops) once we confirm the box is faulted, but I think you would need some kind of P/N from the board, to possibly locate a PN for the LED. I am afraid that info is going to be proprietary.
As not long ago, we attempted to look into the programing of the (Timed) relay for the Air Inlet door and could not find any information on the internals of the FCIM.
But have not had one apart for the (PCB) Part Number, it can be done (repaired) just have to locate the information needed and proficient at soldering a board.
Hopefully someone on here with Ardunio or Raspberry Pi knowledge may be able to help in a PN or alternative.

 

[jdanie45]

Thank you. I am trying my luck at electronics places. They need some information though which is hard to give. I measured the voltage of the 3 next to the broken when on and it measure 1.9vdc.When I measure power on the broken one on the same pins as the other I get 12Vdc. From what I have read if the LED is blown it will give a high reading due to this. I will see if I can have someone remove the LED to get better measurements of the LED to be able try search.

 

[Idaho Mike]

Maybe Find A Used Board And Desolder/Resolder One In?

 

[jdanie45]

I am on the lookout for one.

 

[jdanie45]

Hey guys. I managed to get the airbag light cleared. I had the LED that wasn’t working removed and took to an electronics company. They could not get the same LED but managed to get a smaller LED. The new one only has 2 pin vs 4 pin of original so had to bridge out top 2 pins and the left hand side pins. The new LED works now just not as bright as original one which isn’t a train smash for me. I didn’t need to even use forscan to clear airbag light as I turned ignition on it went away. I cleared the the old DTC in forscan anyway.

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