User's Manual

Chapter 4: Troubleshooting
V1.5 BlueTree Wireless M2M Express Product Manual 29
Chapter 4: Troubleshooting
This chapter helps you manage commonly reported issues when dealing
with your BlueTree Wireless Data Modem and BlueVue software.
Modem Help
Issue Possible cause Suggestion
Low or no network signal strength.
PWR LED is flasing. The modem does
not communciate with the network.
CD LED is OFF.
Cellular antenna is not properly
connected to the modem.
Check that the antenna cable is
connected properly to the SMA
connector labeled RF on the modem.
No service. Check to see if you are within your
service provider’s coverage area.
Use BlueVue to read the signal strength.
If no signal, then move to an area known
to have a signal.
Check your authentication credentials.
Check your password.
Check if the SIM card is properly
inserted into the modem.
PWR LED is OFF No power to the modem. Check to see if the fuse is not blown.
Is the power connector plugged securely
to the modem?
Check the 12 volts supply. Is it
reversed?
Is the ignition sense cable connected:
White to +12 volts.
Are you using the power cable supplied
by BlueTree?
Modem is defective. Contact BlueTree
technical support.
DTR LED is OFF. No software application is using the
COM port.
Check if your application or BlueVue is
running and using the modem’s COM
port.
Serial cable attached to incorrect port. Move your serial cable to the correct
COM port on your computer.
DTR LED is ON but no response from
modem.
TX LED is flashing.
RX LED if OFF.
Serial port data speed is incorrect. Use HyperTerminal or your application
to change the baud rate of the COM
port.
Echo response is OFF or result code is
OFF.
Using HyperTerminal, enter ATE1Q0V1.