No Comm From Micro to Remote Display
system
Description
The main microprocessor gets no sync responses from the Remote Panel Module for 10 seconds, and the unit alarms only.
Activation Conditions
If alarm 21100 No Comm from Any Board to Main Micro is not active, and the number of remote panels installed is configured as 1, and no sync responses have been received from the Remote Panel Module for 10 seconds.
Unit Behavior
Engine and Electric Operation: Alarm only.
Reset Conditions
Auto reset when communication is restored, or alarm may be manually reset by turning the unit off, then back on again.
Corrective Actions
1. Does the Remote Panel Work? - If panel is working, this may be an intermittent alarm caused by a bad connection. Check connection from Comm Module to Remote Panel. Verify no damage or corrosion in connections. 2. Check for other CAN bus alarms - This alarm may accompany other alarms, complete troubleshooting steps for alarms found. If repairs have been made and the other alarms have cleared, further troubleshooting may not be required. 3. Check for Power into Remote Panel - Check for battery power at pins C and D. Verify power. 4. Check CAN Circuit to Remote Panel - At the Remote Panel connector, check resistance between pin A and pin B. Verify 120 ohms. 5. Replace Remote Panel with a Known Good Panel a. If problem re-occurs replace the Comm Module. b. If problem goes away replace the Remote Panel.