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Appendix A The Error Codes
0400h – 04FFh:
Keyboard Error Codes
0400h – 04FFh:
Keyboard Error Codes
Code
Explanation
Details/Parts to Check
0400h
The HP Hardware Diagnostics utility
received a keyboard controller interface
error.
Keyboard controller error.
Install new system board.
0401h
The HP Hardware Diagnostics utility
issued commands to keyboard controller
and received improper responses.
Keyboard controller error.
Install new system board.
0410h –
0411h
Keyboard clock line is stuck low/high.
Keyboard or keyboard controller error.
Check that keyboard is connected correctly.
If error persists, install new system board.
0412h –
0413h
Keyboard data line is stuck low/high.
Keyboard or keyboard controller error.
Check that keyboard is connected correctly.
If error persists, install new system board.
0414h
The HP Hardware Diagnostics utility
issued a command to the keyboard and
either did not receive a response or
received an improper response.
Keyboard or keyboard controller error.
Check that keyboard is connected correctly.
If error persists, install new system board.
0415h
Keyboard LED could not be turned on.
Keyboard error.
Replace the keyboard.
0416h
Keyboard diagnostic echo failed.
Keyboard or keyboard controller error.
Replace the keyboard.
If error persists, install new system board.
0417h
Keyboard is not responding to command.
Keyboard or keyboard controller error.
Replace the keyboard.
If error persists, install new system board.
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