Being a DISABLER, by definition, you will NOT see V4 Mode.
On the latest AFM DISABLER Modules, the four blue lights are basically to indicate the unit is operating. They are as follows:
- LED #1 - Power is ON and unit is AWAKE and vehicle is ready for commands
- LED #2 - RPM > 500 and Engine is Running
- LED #3 - Vehicle speed is above the minimum necessary for Range to start taking control (about 9 MPH). This also indicates things like engine coolant temp and oil pressure are nominal for operation.
- LED #4 - In active command mode and controlling the AFM
The LEDs are numbered FROM RIGHT TO LEFT as you see them when plugged into the OBD2 port.
When you first plug the module into the OBD2 port, you may see the LED cycle in a pattern (units produced after Sept. 22rd 2014) which is just an indication that it performing internal hardware diagnostic checks before going into full operating mode. Earlier modules may not cycle the LEDs (but still perform the hardware checks in "silent" mode).
During operation, it is normal to see the lights cycle and go on/off in different sequences sometimes appearing to dim or vary in brightness (or even almost go dark). The lights are not really useful to you as the driver, but are used more for diagnostic or status indications when doing troubleshooting/verification. You will see the lights dim dramatically as you slow down/brake. As long as the vehicle is staying in V8 and speed is above 9 mph, the unit is operating normally.
Also, the units have a "SLEEP" mode where after you shut the key off and engine is not running for 3-10 seconds. All the LIGHTS WILL GO OUT and it will go into power saving mode.
The device will wake up again when you start the engine and the LEDs may cycle 2-3 times as the unit performs internal diagnostics. Earlier versions may not cycle the LEDs.
It may take up to 20 seconds (usually less) for it to start showing lights again ... this is NORMAL because it may take that long before we can send commands to the vehicle (especially on a cold motor).