Faulty Signal

Faulty signal

Checking CD-ROM player function




- Ignition on.
- Insert a CD-ROM disc with map information into the CD-ROM player.
- Use System test function to test CD-ROM player functions. For more information about the System test, see System Test System Test. The test can take up to approximately 4 minutes at longest.
Check that CD-ROM player is OK?
If the CD-ROM player functions OK is displayed.





Is the CD-ROM player OK?

Yes - Intermittent fault

No - Check the CD-ROM disc, contact resistance and oxidation

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Check the CD-ROM disc, contact resistance and oxidation




Check control module and CD-ROM player connectors for contact resistance and oxidation and remedy according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Clean CD-ROM disc
Check that that CD-ROM disc is undamaged. If the CD-ROM disc appears damaged, try a new CD-ROM disc.
Ignition on.
Insert a CD-ROM disc with map information into the CD-ROM player.
Use System test function to test CD-ROM player functions. For more information about the System test, see System Test System Test. The test can take up to approximately 4 minutes at longest.

Other information:
- To access/replace the control module, see Replacing the control module, old system Replacing the Control Module, Old System.
- To access/replace the CD-ROM player, see Replacing, CD-ROM player Service and Repair.
Check that CD-ROM player is OK.
If the CD-ROM player function is now OK, the fault was due to a bad connection or a fault with the CD-ROM disc.





Is the CD-ROM player OK?

Yes - FAULT FOUND

No - Checking cables and components

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Checking cables and components
Check the cables between the control module #A4, #A5, #A18, #A19 and CD-ROM player terminals 5, 11, 12, 13 for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault , a short-circuit to ground according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault and a short-circuit to supply voltage according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Check that the CD-ROM player connector is correctly connected.
If the cables and connector are OK, try a new CD-ROM player
Remedy as necessary.

Other information:
- To access/replace the control module, see Replacing the control module, old system Replacing the Control Module, Old System.
- To access/replace the CD-ROM player, see Replacing, CD-ROM player Service and Repair.
- To connect the breakout box, see Connecting the breakout box Connecting the Breakout Box.














Continue - Verification

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Verification

Hint: After carrying out the repair, check that the fault has been remedied.












- Ignition off.
- Reconnect connectors, reinstall components.
- Ignition on.
- Insert a CD-ROM disc with map information into the CD-ROM player.
- Use System test function to test CD-ROM player functions. For more information about the System test, see System Test System Test. The test can take up to approximately 4 minutes at longest.
Check if CD-ROM player is OK or not.
If the CD-ROM player functions OK is displayed.





Is the CD-ROM player OK?

Yes - FAULT FOUND

No - Fault-tracing information
No Fault Found

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Fault-tracing information




Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - Exit fault-tracing

No - Attempt New Test

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Attempt New Test - Checking CD-ROM player function

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Intermittent fault
Check the control module and CD-ROM player connectors for contact resistance and oxidation according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Check the cables between the control module #A4, #A5, #A18, #A19 and CD-ROM player terminals 5, 11, 12, 13 for an intermittent open-circuit according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults , an intermittent short-circuit to ground according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults and an intermittent short-circuit to supply voltage according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Remedy as necessary.

Other information:
- To access the control module, see Replacing the control module, old system Replacing the Control Module, Old System.
- To access/replace the CD-ROM player, see Replacing, CD-ROM player Service and Repair.
- To connect the breakout box, see Connecting the breakout box Connecting the Breakout Box.














Continue - Fault-tracing information
FAULT FOUND

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Fault-tracing information




Information

Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Do you want to view the information again?

Yes - Attempt New Test

No - FAULT FOUND

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Attempt New Test - Checking CD-ROM player function

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