09/03
2-27
DC 3535/2240/1632, WC M24
3-331, 3-332
Status Indicator RAPs
Initial issue
3-331 IIT-ESS Communication Failure 12
Controller received check code error (wrong message packet length in received 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).
3-332 IIT-ESS Communication Failure 13
Controller received check code error (received 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).