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©2018 Lytx, Inc. - Confidential & Proprietary.
Problem
Possible Causes and Solutions
Ignition is not being
detected in the Lytx
Installation Tool.
If the engine is already turned on, turn the engine off and then
back on.
Wait about 10 seconds. Then verify that the ignition is being
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.
Wait about 10 seconds. Then verify that the ignition is being
detected.
Engine RPM is not being
detected in the Lytx
Installation Tool.
Ensure the vehicle is running. Turn the device off and on either
by disconnecting the Device Power Cable or by entering the
device's Diagnostic Mode. For more detail on entering
Diagnostic Mode, go to "Initiate Diagnostic Mode" on page 41.
If the installation does not include connection to the vehicle
network, bypass this.
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.
J1708 Connections: The wires from the J1708 interconnect
cable may be connected to the incorrect vehicle wires. Verify
that the vehicle J1708 HI and LO wires are properly identified.
Verify that the white wire from the interconnect cable is
connected to the vehicle J1708 HI wire; verify the black wire is
connected to the vehicle J1708 LO wire.
J1708 Connections: The J1708 Interface Cable may not have
been connected to the J1708 backbone but to a stub. Try
connecting to a different location on the J1708 network.
The turn signal or brake
inputs aren't being
detected in the Lytx
Installation Tool.
Verify the inputs are correctly assigned in the Lytx Installation
Tool. Check the connection point and inspect the corresponding
wiring for cuts or damage.
