Edgeiron 48gs Diagnostic light keeps flashing green. Can't get anywhere via cli.

Carrier 48GS User Manual

There is no re-setting. You just change it out. Be sure and disconnect battery before unplugging the ecu. It's a simple swap and go.
If yours is like my '87 Sentra, there is no trouble code capability, but there are limited diagnostic functions. The red and green LED lights and the diagnostic switch (on/off), can tell you if problems are present in the system or not. You just have to follow the diagnostic procedure.
Here's how: Make sure diagnostic switch on ecu is off. Run engine at 2000 rpm for 5 minutes, at no load. Look at green led: if it flashes at least 5 times in 10 seconds (that is the oxygen sensor making it flash), turn car off. Turn diagnostic switch on. Turn key to on, do not start engine. Check led's: if red is off and green on steady-No problems present in system.
If the red light is on and green light is flashing, post back and I can furnish the rest of the diagnostic procedure-basically, you will be checking voltages and resistance of all solenoids and relays the ecu controls. The green led may flash in two different sequences (either longer flashes and short pauses, or longer pauses and short flashes) when in diag. mode (with the red led on), and that will lead you down two different diagnostic routes. Pretty simple, really, and pretty effective. Took me hours and hours before I realized I even had this diagnostic function.

Hello, like your failure is due to the generator is generally low and the battery energy storage performance degradation, it is recommended that you check the engine power and the energy storage performance of battery, as well as the link of the body by iron wire, according to specific situation for repair.
you want solve this problem please :diagnostic tool

Hi,

Please follow the steps below to reset the password

1. Power Off and Power ON the switch
2. Immediately enter 'b' to go to the boot monitor mode
3. Do not Enter any password in boot monitor mode.
4. Enter boot system flash primary
5. You will be getting a prompt as 'FastIron>'

Please set the new password as below:

FastIron>enable
FastIron# configure terminal
FastIron(config)# enable super-user-password admin
FastIron(config)# write memory


Your new password is set now as 'admin'

Best Regards

The green light flashing is actually a diagnostic code, IBM should have what the flashes mean on their web site.

I once worked on the the exact same model and the green light was flashing. The owner bought a new Motherboard off of ebay and I installed it and the computer then worked fine.

I am not saying that it is the motherboard, it could be an issue with battery or the AC adapter as well.

Try removing the battery and powering on the computer while it is plugged in. If possible try a different AC adapter.

The Lenovo web site is where you can find support for your system but I was not able to find any documentation regarding diagnostic codes.

http://www.docs.hvacpartners.com/idc/groups/public/documents/techlit/48gs,gx-7si.pdf

There is two Green single wire plugs under the dash, driver side, above your left leg (rh drive) plug them together, engine check light will flash, www.auto-diagnostic-codes.com will help to read codes

Start with the printer OFF

1. Hold down RESUME and then hold down POWER
2. Release RESUME
3. Press RESUME twice, then release POWER
4. Let green light blink until printer is done futzing

Select function with RESUME press POWER to execute:
presses - light color - function

Number of presses - light color - function
0 presses - green - Test print (or exit service mode on i960)
1 press - orange - EEPROM info print (plus grid nozzle diagnostic on i850)
2 presses - green - EEPROM initialize
3 presses - orange - Reset waste ink counter