Reading and Clearing Diagnostic Trouble Codes
USING AUDIO SYSTEM ON-BOARD DIAGNOSTICSThe audio system has on-board diagnostic capabilities and is equipped to check for every component available in the system even if this specific vehicle is not equipped with all components. A Diagnostic Trouble Code (DTC) will be set for the missing components. These DTCs can be ignored if the vehicle is not equipped with these components.
The battery must be fully charged for proper audio system operation. The ignition switch must be in the RUN or ACC position. Turn the system on, tune in a strong AM station and verify good reception. After an AM station is checked, tune in a strong FM station. The system is now ready to enter the diagnostic mode.
DIAGNOSTIC MODE:
NOTE: Battery must be fully charged for proper audio system operation and self-test.
Enter Diagnostics mode by pressing SEEK DOWN button first and then pre-set button 3. Hold both buttons for five seconds. This will suspend all normal radio functions, retain the previously selected frequency and display DIAG.
1. SYSTEM CONFIGURATION SELF-TEST:
Press pre-set button 1. This will check for connection of all possible devices and log the diagnostic trouble codes for any device that does not respond. The display will flash SELF while gathering the diagnostic trouble codes, then stop flashing when complete. To exit System Configuration Self-test, press pre-set button 1 again. To retrieve diagnostic trouble codes, press the TUNE UP button. This will display the diagnostic trouble codes if any exist. Continued pressing of the TUNE UP button will display the next diagnostic trouble code. Record codes and refer to the following table. To exit the Retrieval Mode, press pre-set button 1.
Configuration Self-Test Codes
Code 0 -- No diagnostic trouble codes logged
Code 1 -- No response from rear chassis unit
Code 2 -- No response from tape deck
Code 3 -- No response from bezel microprocessor
Code 4 -- No response from compact disc player
Code 5 -- No response from steering wheel controls
Code 6 -- No response from rear seat control
Code 7 -- No response from remote climate control
Code 8 -- No response from navigation module
Code 9 -- Read Only Memory verification failed
Remember, system configuration will test for all possible equipment connections. Inspect the vehicle to determine actual equipment installed.
NOTE: To perform diagnostics, press the appropriate buttons as instructed.
2. Integrated control panel display test:
To enter the integrated control panel display test, press pre-set button 5. This check will light all segments in the integrated control panel. The system will automatically exit this test after five seconds.
Software Identification Codes:
3. Integrated control panel and rear chassis unit identification:
To enter this test, press pre-set button 3. This test identifies the software level of the integrated control panel and rear chassis unit. The integrated control panel is tested first, followed by the rear chassis unit. The completed test will exit automatically. For code identification, refer to the table. The display will have two sequences of five codes each. The first sequence is for the integrated control panel, the second sequence is for the rear chassis unit.
Rear Chassis Unit Diagnostic Trouble Codes:
4. Rear chassis unit self test:
To enter this test, press pre-set button 4. This test will check the rear chassis unit Read Only Memory (ROM) and Electrically Erasable Read Only Memory (EEPROM) memory chips. The completed test will exit automatically. For code identification, refer to the table.
5. Compact disc player:
The compact disc player will automatically display diagnostic trouble codes for unacceptable operating conditions that hinder normal performance. For code identification refer to the following table.
Compact Disc Player Diagnostic Trouble Codes
CD-E1 -- Mechanism Error
CD-E2 -- Focus Error
CD-E3 -- Disc Unreadable
Too Hot -- Thermal Shutdown
No CD -- Empty Slot or Magazine Not Inserted
No DJ -- No Compact Disc Player Detected
The system will automatically exit the test upon completion of the test.