The keypad is on the wall behind the box, so the cables only about a foot long anyway.
I rang Honeywell, told me that the fault code is a comms issue in the keypad and it's beyond help...
I've got the same issue...
Alarm fitted and working fine for several months.
Started getting a fault on set from a single PIR.
Changed the PIR and had no problem for a few weeks, last night I get the fault again.
Decided to disconnect the PIR, now the panel is stuck showing the above code.
Doing a factory reset doesn't ckear it...
Anyone got any ideas??