09/03
2-23
DC 3535/2240/1632, WC M24
3-323, 3-324
Status Indicator RAPs
Initial issue
3-323 IIT-ESS Communication Failure 4
Controller received check code error (wrong message packet length in sent packet).
Procedure
Switch the power off then on. The problem continues.
YN
Return to Service Call Procedures.
Reinstall the software. If the problem continues, check the IIT/IPS PWB connectors (P/J Loca-
tions, Figure 30). If the check is OK, replace the IIT/IPS PWB (PL 18.3).
3-324 IIT-ESS Communication Failure 5
Controller received check code error (sent packet checksum error).
Procedure
Switch the power off then on. The problem continues.
YN
Return to Service Call Procedures.
Reinstall the software. If the problem continues, check the IIT/IPS PWB connectors (P/J Loca-
tions, Figure 30). If the check is OK, replace the IIT/IPS PWB (PL 18.3).