Test The Battery Cable; Check The Lmx Sensor And Display Unit Connectors - Sensors & Software LMX100 Quick Start Manual

3) Test the Battery Cable

Insert the battery cable into the battery and test the battery cable. Use a multimeter to
measure the battery voltage at the connector at the end of the battery cable. Measure the
voltage between socket #1 (ground, using the black probe) and socket #4 (power, using
the red probe). If the voltage is less than 10.5 volts, there is a problem with the battery
cable.

4) Check the LMX Sensor and Display Unit Connectors

Turn off the LMX system and disconnect the battery before disconnecting the cable that
connects the Display Unit to the LMX Sensor.
a) On the back of the Display Unit, check that none of the 37 pins are missing, bent, or
recessed. Look at the pins on an angle to confirm they are all flush with one another.
If one is bent or recessed, gently bend the pin back straight and flush with the other
pins. Then reconnect the cable and try powering the LMX system again.