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Three codes I can't find

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Old Feb 3, 2017 | 03:38 PM
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Default Three codes I can't find

My 2001 Cadillac Deville has set the following codes as found on the dash, not OBD.
IRCU 1016 History
RCCU 1000 History
RIN C0660 current
Thd the dash Check engine light flashed for about 1/2 minute.
Any suggestions what these codes apply to or where I can go to find out about would be appreciated.
Thanks, Jim
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Old Feb 3, 2017 | 10:05 PM
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I found a source that seems interesting, and may be of some help to start looking

OBDII diagnostics. Trouble code definition for code U1016. Causes of error U1016
OBDII diagnostics. Trouble code definition for code U1000. Causes of error U1000
OBDII diagnostics. Trouble code definition for code C0660. Causes of error C0660

If I have guessed at this correctly, the first two likely go hand in hand, suggesting a communication failure with the computer for a period of time. The third seems unrelated, and affects the rear leveling system.
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