Starting in 1995, the family style radios, as well as the 12-disc LLAI and
6-disc LLAI (Low Level Audio Interface) changers and the 10-disc FMI (FM
Interface) changers, have error codes to help diagnose playback mediums.
Some systems will only have an ERR message and no other indicator. If an ERR
message is encountered without any other identifier, you may review the
following error codes to try to determine the cause of the error and correct it
before sending the unit to the authorized service center. If ERR or E (and a
number) appears on a customer's radio display, the number may give you a clue to
the problem and corrective action.
Below is a list of code numbers that may appear on the unit.
CD Errors
- E20 : Focus Error Cause(s): The CD player cannot focus on the disc or there
is an internal focus problem. Correction(s): Try cleaning the disc or using a
new disc. Make sure the disc is loaded correctly. The road could be too rough or
there is too much humidity. If the problem is not corrected, service the unit at
an ACDelco® Service Center.
- E21 : Tracking Error Cause(s): There is a problem with reading the disc
Correction(s): Try cleaning the disc or using a new disc. Make sure the disc is
loaded
correctly. The road could be too rough or there is too much humidity. If there
is still an error, service the unit at an ACDelco® Service Center.
- E22 : Motor Error Cause(s): The CD motor is not handling the compact disc
properly. Correction(s): Service or exchange the unit at an ACDelco® Service
Center.
- E23 : Communications Error Cause(s): There is a vehicle/radio communication
problem or an internal radio communication problem. Correction(s): Disconnect
battery voltage to the radio and then reconnect after a few minutes. If there is
still an error, send the unit to an ACDelco® Service Center.
Hope that gives you a place to start,
Mike
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