Skip to main content
MC-4+ LED Behaviors
K
Written by Kayla Yates
Updated over 2 years ago

POST LED Sequence

LED Color

State

Description

All

Off

Device is not powered, test has not started

Red

Solid

Device is powered

Red

Slow

The battery is charging

Red

Fast

The battery charger has a fault

Amber

Slow

GPS Location Fix Test Begin

Amber

Fast

GPS Location Fix Test Failed

Amber

Solid

GPS Location Fix Test Passed

Green

Slow

Cell Communication Test Begin

Green

Fast

Cell Communication Test Failed

Green

Solid

Cell Communication Test Passed

Blue

Slow

Ve hicle Bus Test Begin

Blue

Fast

Vehicle Bus Test Failed

Blue

Solid

Vehicle Bus Test Passed

Keep all LEDs in their current state for 5 seconds before starting normal device operation.

Normal LED Operation with Auto LED Enabled

LED Color

State

Behavior

Red

Off

Engine not running

Red

On

Engine running

Red

Slow Blink

Internal Battery charging

Red

Fast Blink

Internal Battery Charger Fault

Yellow

Off

GNSS Powered Off

Yellow

Slow Blink

Attempting to acquire a valid GNSS fix. This will stay slow blinking.

Yellow

On

Valid GPS Fix acquired

Green

Off

Modem powered off

Green

Slow Blink

DEvice attempting to contact the server or getting ready to send reports.

Green

On

-Device has contacted the server

-Report packet sent to the server

-Acknowledgement has been received from the server.

Green

Fast Blink

-Device is waiting for the Backoff timer to expire

-No connection to server or cell tower

-Read SMS (if provisioned)

Blue

Off

Normal Operation and Bluetooth activation configuration element is disabled

Blue

Slow Blink

When following conditions are true:

-Bluetooth Activation configuration element is enabled

-Bluetooth Classic control configuration element is enabled

-The device is unpaired or paired and not connected

Blue

On

When following conditions are true:

-Bluetooth Activation configuration element is enabled

-Bluetooth Classic Control configuration element is enabled

-The device is paired and connected

Blue

On/Off Blinks

When following conditions are true:

-Bluetooth Activation configuration element is enabled

-BLE Ad Monitoring Control configuration element is enabled

Did this answer your question?