AMG-C Diagnostic LED Light Quick Reference Guide

The diagnostic LED light indicators are located on the side of the AMG-C. Remove the cover to view the diagnostic lights.

Each light is labeled. See the following sections to learn more about the operation of each indicator.

AMGC diagnostic LED quick reference v3.png

The PWR LED is known as either the Power LED or the VIOP LED. This is used to provide details of OS, App, and VIOP states.

Off:	Power Off
Blinking Red:	VIOP POST Boot Test failed
Blinking Red/Green/Blue:	VIOP POST Boot Test in progress (occurs briefly after a power on)
Blinking Green/Blue:	OS Booting
Blinking Blue:	PAPI link up, app not fully launched (not seen in normal operation)
Blinking Green:	App is up, normal operation, Ignition OFF
Solid Green:	App is up, normal operation, Ignition ON
Blinking Green/Red:	Bus abnormal/off condition 1587 and 1939 both bad, hardwired Ignition ON
Blinking Red/Blue:	VIOSIP Link down for more than 10 seconds
Blinking Red:	Low voltage detected, shutdown in progress (low voltage is set to true at 7.5V and will set back to false when voltage is back above 8.5V)
Solid Red + Blue Blink every 5 seconds:	Boot fail sleep (max launch retries have been exhausted) (Red remains on the whole time so it will appear purple when blue blinks)
Solid Red:	VIOP running in ISP mode, VIOP update in progress

The GPS LED indicates the AMG-C GPS connection state.

Off:	Power Off
Solid Red:	During Startup – Initial state, GPS not yet initializing (occurs briefly during startup) After Startup – Indicates GPS failure (may occur following a power dip) This counts as a ‘failed’ state which would cause front-facing DN LED to be Red
Blinking Red/Green:	GPS is initializing or attempting a recovery (may occur following a power dip) This counts as a ‘failed’ state which would cause front-facing DN LED to be Red
Blinking Green:	Low Precision / 2D GPS Fix, attempting 3D GPS Fix
Solid Green:	GPS Fix achieved with good precision

The Cell LED indicates the AMG-C Cellular connection state.

Off:	Power Off
Solid Red:	During Startup – Initial state, not yet initializing (occurs briefly during startup) After Startup – Indicates Cellular connectivity failure (may occur following a power dip) This counts as a ‘failed’ state which would cause front-facing DN LED to be Red
Blinking Red/Green:	Cellular modem is initializing or attempting a recovery (may occur following a power dip) This counts as a ‘failed’ state which would cause front-facing DN LED to be Red
Blinking Green:	End-to-end cellular test in progress (end-to-end connectivity will periodically be tested while AMG-C is running)
Solid Green:	End-to-end cellular test is passed, good connectivity

The BT LED indicates the AMG-C Bluetooth connection state.

Off:	Power Off
Solid Red:	During Startup – Initial state, not yet initializing (occurs briefly during startup) After Startup – Indicates Bluetooth chip failure (may occur following a power dip) This counts as a ‘failed’ state which would cause front-facing DN LED to be Red
Blinking Red/Green:	Bluetooth chip is initializing or attempting a recovery (may occur following a power dip) This counts as a ‘failed’ state which would cause front-facing DN LED to be Red
Blinking Green:	Bluetooth is initialized, but device is not paired
Solid Green:	Bluetooth device is paired

The WiFi LED indicates the AMG-C WiFi connection state.

Off:	Power Off
Solid Red:	During Startup – Initial state, not yet initializing (occurs briefly during startup) After Startup – Indicates WiFi chip failure (may occur following a power dip) This counts as a ‘failed’ state which would cause front-facing DN LED to be Red
Blinking Red/Green:	WiFi chip is initializing or attempting a recovery (may occur following a power dip) This counts as a ‘failed’ state which would cause front-facing DN LED to be Red
Blinking Green:	WiFi is initialized, ready for connection
Solid Green:	WiFi is connected(either AMG-C is connected to an access point, or a device is connected to the AMG-C hotspot)