NO.8 AUDIO SYSTEM ILLUMINATION DOES NOT ILLUMINATE AT ALL [AUDIO]
id0903e1803700
|
8 |
Audio system illumination does not illuminate at all/Possible DTC: 09:Er20, 21:Er19 |
|---|---|
|
Troubleshooting hints
• Poor connection of audio unit connector, terminal damage
• Audio unit malfunction
• Burnt fuse (TNS signal)
• Open or short circuit in TNS signal wiring harness
• Center panel malfunction
|
|
Diagnostic procedure
|
STEP |
INSPECTION |
ACTION |
|
|---|---|---|---|
|
1
|
• Are all illumination on the audio unit turned OFF?
|
Yes
|
Go to the next step.
|
|
No
|
Replace the center panel.
|
||
|
2
|
• Turn the ignition (F2, G6)/engine (WE-C, WL-3, WL-C, WLT-1, WLT-2) switch to the LOCK position.
• Inspect the fuse (ILLUMI).
• Is the fuse normal?
|
Yes
|
Go to the Step 4.
|
|
No
|
Go to the next step.
|
||
|
3
|
• Turn the ignition (F2, G6)/engine (WE-C, WL-3, WL-C, WLT-1, WLT-2) switch to the LOCK position.
• Disconnect the audio unit connector (24-pin) and inspect the continuity between the audio unit wiring harness-side connector terminal E (TNS) and the ground.
• Is there continuity?
|
Yes
|
Repair or replace the short circuit in the suspect wiring harness. After repair the harness, replace with the appropriate standard fuse.
|
|
No
|
Go to the next step.
|
||
|
4
|
• Inspect the connection of the audio unit connector (24-pin).
• Inspect both the audio unit and wiring harness-side connector terminal E for poor connection (such as damaged/pulled-out pins, corrosion).
• Are all the pins normal?
|
Yes
|
Go to the next step.
|
|
No
|
If poor connection of audio unit connector:
• Securely connect the audio unit connector.
If the audio unit side connector is wrong:
• Replace the audio unit.
If the wiring harness-side connector is wrong:
• Repair or replace the pins and/or the connector.
|
||
|
5
|
• Connect the audio unit connector (24-pin).
• Turn the ignition (F2, G6)/engine (WE-C, WL-3, WL-C, WLT-1, WLT-2) switch to the ACC position.
• Inspect the voltage at the audio unit connector terminal E (TNS).
• Is the voltage B+ when the light switch is turned to the TNS position?
|
Yes
|
Replace the audio unit.
|
|
No
|
Repair or replace the suspect wiring harness (TNS signal).
|
||