Inspection and verification
1. Check the validity of the customer's complaint by turning on the system.
2. Perform a visual inspection for obvious signs of mechanical or electrical damage.
Visual inspection diagram
|
Mechanical factors |
Electrical factors |
|
– Damage to the audio unit – Jamming, impossibility of loading the cassette player – Jamming, inability to load the compact disc (CD) player – Antenna/adjustment |
– Fuse 31 (15 A) – Fuse 50 (7.5 A) – Loose or corroded connector(s) - Audio block - Speakers |
3. If an obvious cause for the reported or received complaint is found, correct the cause of the fault (if possible) before proceeding to the next step.
4. If no obvious cause is found, codes may be shown on the audio unit display (vehicles with 6006E or 9006 audio unit only). Check the audio unit display for fault codes. All vehicles except vehicles with 6006E or 9006 audio units - refer to Self-diagnosis Mode.
CD Fault Codes - Vehicles with 6006E or 9006 Audio Unit
|
Fault code |
Description of the malfunction |
Troubleshooting |
|
E1 |
Communication error |
INSTALL the new audio unit. CHECK the system for proper operation. |
|
E2 |
Overheating error |
The audio unit has overheated and will not operate until it cools down. Make sure the heater duct(s) are not blowing hot air towards the radio. If the problem persists, INSTALL a new audio unit. CHECK that the system is operating correctly. |
|
E3 |
Mechanical error |
INSTALL the new audio unit. CHECK the system for proper operation. |
|
E4 |
Focus error |
The CD is upside down or dirty. Clean the CD and try playing it again; if the fault code does not clear from the display, INSERT another CD. If the fault code does not clear from the display. INSTALL a new audio unit. CHECK that the system is operating correctly. |
|
E5 |
Overcurrent error |
INSTALL the new audio unit. CHECK the system for proper operation. |
Self-diagnostic mode
1. To enter the audio unit self-diagnosis mode, turn on the audio unit (ON position). Within four seconds, simultaneously press the preset buttons 3 and 6.
2. Release preset buttons 3 and 6; the audio unit will enter Self-Diagnostic Mode.
3. To switch between the operations of the Audio Unit Self-Diagnostic Mode, press the preset button 6.
4. To exit the Self-Diagnostics Mode, do not press any of the audio unit buttons for 10 seconds.
5. If Self-Diagnosis Mode is not available, use WDS to diagnose the audio unit.
|
Examination |
Displayed syntax |
Circuit under test |
Description |
|
1. Checking the FM frequency band. |
There is reception on the FM frequency. |
Antenna signal. |
Tests the signal from the antenna cable. |
|
2. Announcement of the road information service. |
TP |
Volume level of traffic information service announcements. |
Allows you to adjust the volume. |
|
3. Check the speaker circuit - left front speaker. |
4CH LF for four-channel system, 2CH LF for two-channel system. |
Left front speaker circuit. |
Check the speaker circuit. |
|
4. Check the speaker circuit - right front speaker. |
4CH RF for four-channel system, 2CH RF for two-channel system. |
Right front speaker circuit. |
Check the speaker circuit. |
|
5. Check the speaker circuit - left rear speaker. |
4CH LR for four-channel system, 2CH LR for two-channel system. |
Left rear speaker circuit. |
Check the speaker circuit. |
|
6. Check the speaker circuit - right rear speaker. |
4CH RR for four-channel system, 2CH RR for two-channel system. |
Right rear speaker circuit. |
Check the speaker circuit. |
|
7. Check the communication signals with the automatic CD changer unit (if equipped). |
CDDJ is OK if communication signals are received, and CDDJ is OFF if no communication signals are received. |
Compact disc communication chain. |
Check the CD chain. |
6. If the complaint is not resolved after passing the Self-Diagnostic Mode, refer to the Table of Malfunction Signs.
Table of signs of malfunctions
|
State |
Possible Causes |
Action |
|
•The audio unit does not work or works with errors |
•Fuse(s). •Chain. •Audio block. |
• Proceed to PINPOINT TEST A. |
|
•There is no indication on the display - the radio and cassette player are working |
•Audio block. |
•INSTALL the new audio unit. |
|
•Poor reception quality |
•Antenna. •Antenna cable. •Audio block. |
• Proceed to PINPOINT TEST B. |
|
•Sound distortion from one or more speakers (not all speakers) |
•Speaker(s). •Chain. •Audio block. |
• Proceed to PINPOINT TEST C. |
|
•No sound from all speakers |
•Speaker(s). •Chain. •Audio block. |
• Proceed to PINPOINT TEST D. |
|
•The CD player is not working properly |
•Audio block. |
•INSTALL the new audio unit. |
|
•There is no sound from one or more speakers |
•Chain. •Audio block. |
• Proceed to PINPOINT TEST E. |
|
•CD changer unit does not work or works erratically |
•Fuse(s). •Chain. •CD changer unit. |
• Proceed to PINPOINT TEST F. |
|
•The radio remote control does not work. |
•Chain. •Remote radio control. •Audio block. |
• Proceed to PINPOINT TEST G. |