Checking the 10-Disc CD changer

Checking the 10-disc CD changer

Reading the user information




- Ignition on.
If the audio unit is equipped with a CD changer: insert a CD and select CD changer with the "SOURCE" knob.
Click on the VCT 2000 symbol to read the user information.





Is any user information stored?

Yes - Checking the 10-disc CD changer

No - No Fault Found

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Checking the 10-disc CD changer




- Ignition on.

Hint: Check that the volume is not turned down. Check other sound sources, for example whether the radio is working.

Check that there is no condensation on the disc.
Check that the discs are inserted correctly.
Check that the CD holder is not warped.
Test with a new disc.
Test using a new holder.
If CD changer is not working replace CD changer.
Do the necessary corrective action.

Additional information
- Windshield antenna / amplifier, CD player, replacing Windshield Antenna / Amplifier, CD Player, Replacing
- AUM diagnostic functions AUM Diagnostic Functions





Continue - Verification

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Verification




Verification

Hint: After the repair it is necessary to check that the error has been rectified.








- Ignition off.
- Connect connector, install components etc.
- Ignition on.
Check that the 10-disc CD changer is working.
Read the user information again and check that the status has changed.





Does the 10-disc CD changer work?

Yes - Verification complete

No - Trouble-shooting information

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Trouble-shooting information
Since the error has not been detected and rectified, the error may be caused by a defective main unit/audio control unit (AUM). Continue by checking the main unit/audio control unit or try again.

Try again?

Yes - Checking the 10-disc CD changer

No - Exit procedure

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Replace the head unit/audio module

Fault-tracing information
Before continuing fault-tracing the following must be checked:
- All tests for the relevant symptom must have been carried out.
- No component, connector or wiring faults should have been detected.

Have all tests been carried out and no faults detected?

Yes - Replacing component

No - Exit procedure

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Replacing component
Try a new head unit/audio module.

Caution! New head unit/audio control modules are supplied without software. The head unit/audio control module must be programmed after it has been replaced.

Other information:
- For information about programming and accessing/replacing the head unit/audio control module, see Radio cassette player, replacing Radio Cassette Player, Replacing.

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