Error Code 5005 - Honeywell PRIMUS 1000 Pilot's Manual

Step
1 Cycle power to the IAC by pulling the circuit breaker. When
the IAC has powered up, try programming it again. Do not
push R for retry, instead choose A for abort to start again.
2 Check the RS232 cable connection on the PC and the IAC
diagnostic connector.
3 Verify that the serial port (COM port) that the cable is
plugged into is the same as the one defined in the loading
configuration (F5 in the checklist loading program).
4 Check that the cable is plugged into the correct IAC
diagnostic connector. To program the pilot' s (primary
checklist) use the connector marked J1330. To program
the copilot' s IAC (backup checklist) use connector J1324.
5 Try moving the connector to another serial port. The PC
may have a bad serial port. Set the configuration in the
checklist loading program to correspond to the serial port
on the PC.
6 The extended memory manager (EMM) to network drivers
on the PC may interfere with the operation of the checklist
loading program. If network drivers are installed in the PC,
try to disable them and reprogram. If the PC has an EMM,
try disabling the EMM. Either of these functions can
usually be disabled by editing the PC' s CONFIG.SYS
and/or AUTOEXEC.BAT files.
7 Try reprogramming the other IAC. If the other IAC takes
the program, the problem is likely to be the IAC or aircraft
wiring.
8 Contact Honeywell Checklist Product Support that is given
in the Electronic Programmable Checklist manual.

ERROR CODE 5005

An error code 5005 usually occurs when the IAC has never been
programmed with a checklist. Usually selecting RETRY allows the
checklist loading program to continue.
A28--1146--112--00
PRIMUSr1000 Integrated Avionics System
Procedure
Troubleshooting Procedure
Table 9--7
Troubleshooting
9-13/(9-14 blank)