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Page 48 of 51
(North America Edition)
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LED
Component
Troubleshooting Steps
1
Vehicle ignition
If the engine is already turned on, turn the engine off and
then back on. Wait about 10 seconds for the ignition to be
detected.
There may be an issue with the brown wire connection. Check
the wire for damage. Gauge the wire with a voltmeter for
12V/24V with the ignition on. Check the vehicle fuse for that
circuit.
2
GPS
The device may be in an area with poor reception. Try re-
locating to a different area and re-testing the signal.
3
Cellular signal
Wait for the device to exit Diagnostic Mode (up to 5 minutes).
Perform a forced check-in: Hold one of the blue buttons for
10 seconds. Verify the LED light pattern. The lights will light
up and blink green one-by-one from the left to right until all
are lit, indicating the check-in was successful.
The device may be in an area with poor reception. Try re-
locating to a different area and re-testing the signal.
4
Vehicle network data
(ECM)
(Only for installations
including vehicle
network connections)
Start the vehicle. Ensure the vehicle is running.
J1939 Connections: The wires may be reversed over the CAN
Coupler. Ensure that the Yellow wire is on the CAN_HI (Y) side
of the Coupler and the Green wire is on the CAN_LO (G) side.
J1939 Connections: Ensure that the CAN Coupler connector is
fully engaged.
J1939 Connections: The CAN Coupler may not have been
placed on the J1939 backbone but on a stub. Try moving the
Coupler to a different location.
5
Brakes
(Standard) If brakes are read from the vehicle network (ECM),
follow troubleshooting steps for the ECM connection (above).
For hard-wired brakes, verify that the Brake Signal is prop-
erly assigned in the Lytx Installation Tool.
For hard-wired brakes, check the connection point and
inspect the corresponding wiring for cuts or damage.
6
Left turn signal
Verify that the Left Turn Signal is properly assigned in the
Lytx Installation Tool.
Check the connection point and inspect the corresponding
wiring for cuts or damage.
7
Right turn signal
Verify that the Right Turn Signal is properly assigned in the
Lytx Installation Tool.
Check the connection point and inspect the corresponding
wiring for cuts or damage.