11-28-2019, 12:38 AM
I noticed similar functionality when correcting the ECU on my Monkey for altitude. Going through the diagnostics requires an "SCS Service Connector" jumper on the DLC (Data Link Connector), but once in place, it's easy to observe the different settings on the MIL as you cycle through. It's not unlike reading morse code. It'd be difficult to know what the codes meant without access to the service manual.
