3-353 IOT-ESS Communication Failure 13
Controller received check code error.
Procedure
Switch the power off then on. The problem is corrected.
Y
N
Reinstall the software. If the problem continues, check the MCU PWB connectors. If the
check is OK, replace the MCU PWB (PL 13.1).
Return to Service Call Procedures.
Prelaunch Training/Review
DC1632/2240
3-354 IOT-ESS Communication Failure 14
Controller received check code error.
Procedure
Switch the power off then on. The problem is corrected.
Y
N
Reinstall the software. If the problem continues, check the MCU PWB connectors. If the
check is OK, replace the MCU PWB (PL 13.1).
Return to Service Call Procedures.
6/02
2-31
Status Indicator RAPs
3-353, 3-354