KONRAD 600B SERIES INSTALLATION GUIDE
JANUARY 2019 - V4.0
PAGE 78
Trim System Component Overview and Troubleshooting
(continued)
Trouble Shooting the CAN line
1. Make sure that all modules in the system have power and a heart beat (blinking light). Modules that have a
heart beat, but are not communicating need to have the CAN line checked. Use the corresponding schematic
for the system installed to identify the connections, routing and options.
Note:
For every module on the trunk, there will be a Y connector. The two Y connectors with terminating resis-
tors define the two end points of the CAN line. When both terminating resistors have been located, follow the
steps outlined below to check each terminating resistor for the proper ohms value.
2. Remove the terminating resistor from the Y connector.
Resistors
3. Remove the blue wedge lock from the resistor using a
screw driver or pick. Using an ohm meter measure across
the two pins of the resistor.
A good terminating resistor will have readings of 119.6 or
120 ohms, replace a resistor if the ohm reading is less.
Reinstall wedge lock if resistor tests okay and reinstall in
Y connector.
Once the terminating resistors are tested okay, next step is
to isolate the CAN wire.
With both terminating resistors in place wired in parallel,
the total resistance of the can line should be 60 ohms when
tested at the open connector at each end of the Y connector.
