No Comm from Micro to CCB1
system
Description
No communication from the CCB1 Module for 10 seconds, and the unit performs a required shutdown.
Activation Conditions
If alarm 21100 No Comm from Any Board to Main Micro is not active, unit is not starting in diesel, and no communication from the CCB1 Module for 10 seconds.
Unit Behavior
Engine and Electric Operation: Required Shutdown. If alarm remains active for 2 minutes issue a shutdown command to all modules except the display.
Reset Conditions
Communication received from the CCB1 Module in the past 10 seconds or alarm may be manually reset by turning the unit off, then back on again.
Corrective Actions
1. Check CCB1 status indicator. Refer to Section 2.5.4. 2. Check Fuse F9 a. Visually check fuse. Verify correct fuse, check fuse holder for damage, see Figure 2.5. Replace fuse as required. Clear alarms, restart and check for repeat alarm(s). b. Check voltage. Check voltage through the fuse. If fuse is blown, replace it. c. Check wiring. Verify there is no physical damage to harness, and no damage, moisture, or corrosion in connectors. 3. Check for power at CCB1 - Check power at pins 14 and 26. Verify battery power.