I have a TAC32 that had a power surge. I have replaced the CPUA, IOD and CWIL boards. I can not communicate with the CWIL board. I believe the no communication to the CWIL is causing my SP and NP faults. When I put in VER the Safety processor and NP processor both read V0R0. Everything else has a version. If I do an RFL with the 1922 and 1920 faults I will instantly get 1154,1124, 1152 and 1153 faults. I have meter my communication CCL-CCH and I have 4.6VDC. Any help is very appreciated