Honeywell BEDIX/KING GPS RNAV - Manual (Page 135)

BENDIX/KING KLN 90B
Rev 5, April/2003 10521I05.TDC Page C-3
KLN 90B GPS FAULT/ERROR CODES, MESSAGES(FROM INSTALLATION BULLETIN 410)
The following tables contain some helpful information to aid in the troubleshooting of the KLN
90B GPS. When the GPS display or the personal computer monitor indicates a GPS Rec. Error
Code, GPS Page Message, or Data Loader Error Message, refer to the tables for an explanation
and suggested action.
The column headings are:
Error Code or Message - the displayed fault indication seen by the user.
Definition - what the message or fault means.
Action Suggested - the probable cause and some possible solutions.
NOTE
If more than one error occurs, the codes can be combined. For instance, if an error code 0800
and an 0008 are both detected, they will be displayed as an 0808. So, if you see an error code
displayed that does not exist in the table, check to see if it is a combination of 2 or more error
codes.
GPS Rec. error
Codes Definition Suggested Action
RCVR Hardware
Error: 0002 ROM Failure: The
ROM failed self-test. Bad ROM (Read Only Memory). Return for service.
RCVR Hardware
Error: 0004 RAM Failure: The
RAM failed self-test. Bad RAM (Random Access Memory). Return for ser-
vice.
RCVR Hardware
Error: 0008 Nonvolatile Memory
Failure: The battery-
backed RAM failed
sum-check test.
Nonvolatile memory
will be cleared. It could be one of the following, in the order of prob-
ability:
1. Newly upgraded unit software will display this prior
to receiving satellite signals.
2. The battery back-up power to the GPS Receiver
was lost. This could be due to either a dead internal
battery or a bad connection on the flex cable to the
receiver.
3. Bad RAM.