Symptom | Suspected area | Repairment |
POWER (Turn on, Turn off by itself, Freezes) | Check the connection | R-1 |
Audio H/U | R-2 | |
FREEZES | Bluetooth issue | R-3 |
Check the RESET | R-4 | |
NO DISPLAY | Check the connection | R-2 |
Lines/Spot | LCD MODULE | R-5 |
No Backlight | LCD MODULE | R-5 |
Touch INOP | LCD MODULE | R-5 |
BLUETOOTH NOT PAIRING/STREAMING | Check the compatibility of BT (Check the phone kind) | R-6 |
LOOSE CONNECTION | BT module | R-6 |
BLUETOOTH VOICE RECOGNITION | Check the compatibility of BT (Check the phone kind) | R-7 |
MIC module | R-7 | |
Back Veiw Camera Funtional | Back view Camera module | R-8 |
Check the vehicel wiring | R-8 | |
USB I/F ERROR | Check the compatibility of USB (Check the USB) | R-9 |
iPOD I/F ERROR | Check the terminal connection of multimedia | R-9 |
No Sound(ALL/CH) | Check the AUDIO H/U Setup | R-10 |
Chec the connection of wiring | R-10 | |
AUDIO H/U | R-10 | |
Check the wiring of the speaker and Audio H/U(EXT. AMP) | R-10 | |
Noise occurs (Static noise) | NOISE SOURCE definition | R-11 |
Chec the connection of wiring | R-10 | |
AUDIO H/U | R-10 | |
Check the wiring of the speaker and Audio H/U(EXT. AMP) | R-10 | |
BUTTON (Not Functional, Stuck) | FRONT Panel | R-12 |
AUDIO H/U | R-12 | |
FM/AM Reception/Noise | Check the vehicle wiring | R-13 |
Check the radion antenna | R-13 | |
AUDIO H/U | R-13 |
Check to remove/ reinsert the Audio fuse.
OK | ▶ If the Audio is normal operation, it is OK. |
NG | ▶ Check the Audio H/U power connector. (R-2) |
Check the Audio H/U power connector.
OK | ▶ Check again after checking the cable harness or connector. |
Tester Connection | Condition | Specificed Condition |
CON-B11 ↔ GND | Always | 9 ~ 16 V |
CON-B12 ↔ GND | Always | 9 ~ 16 V |
CON-B24 ↔ GND | Always | Below 1Ω |
NG | ▶ Check again after replacing the Audio H/U. And then if the Audio is normal operation, replace the Audio H/U. |
Check happening to the problem while connecting the bluetooth.
Check again after releasing the bluetooth connection.
OK | ▶ The Audio is normal operation. (Phone compatibility) |
NG | ▶ If it happends to the same problem again, refer to R-4. |
Check to remove/ reinsert the Audio fuse.
OK | ▶ The Audio is normal operation. |
NG | ▶ Replace the Audio H/U. |
Check the connection of between the front and main cable.
OK | ▶ If the Audio is normal operation, reconnect the cable. |
NG | ▶ Go to step 2 |
Replace the front panel (Lines/ Spot/ No backlight)
OK | ▶ Replace the LCD module or the front panel. |
NG | ▶ Go to step 3 |
Replace the Audio H/U.
Check the kind of phone which customer uses. (Compare with the compatibility list)
OK | ▶ It can not be pair for the model which is not in the compatibility list. |
NG | ▶ Go to step 2 |
Try to pair to other phone.
OK | ▶ If the bluetooth in normal operating, it is the problem of phone compatibility. |
NG | ▶ Go to step 3 |
Replace the Audio H/U.
Check the same problem again after replacing the MIC module.
OK | ▶ If the bluetooth is normal operating, replace the MIC module. |
NG | ▶ Go to step 2 |
Check for continuity between the termnials. (Open/ Ground short)
OK | ▶ If the bluetooth is normal operating, check the cable and connection. |
NG | ▶ Go to step 3 |
Replace the Audio H/U.
Replace the back view camera.
OK | ▶ If the back view camera is normal operating, replace the back view camera. |
NG | ▶ Go to step 2 |
Check the cable harness or connection.
OK | ▶ If the back view camera is normal operating, check the cable and connection. |
NG | ▶ Go to step 3 |
Replace the Audio H/U.
OK | ▶ If the back view camera is normal operating, replace the Audio H/U. |
NG | ▶ Check the vehicle wiring. |
Check the kind of USB and iPod.
OK | ▶ It can not be pair for the model which is not in the compatibility list. |
NG | ▶ Go to step 2 |
Replace the multimedia jack.
OK | ▶ If USB and iPod is normal operating, replace the multimedia jack. |
NG | ▶ Go to step 3 |
Check the vehicle wiring.
OK | ▶ Check the connection and others. |
NG | ▶ Go to step 4 |
Replace the Audio H/U.
Check the setup sound setting to the Audio H/U. (Fader/ Ballance)
Check the speaker cable harness or connection. (Open/ Short)
OK | ▶ Check again after repairing or replacing the cable harness or connector. |
NG | ▶ Go to step 3 |
Replace the Audio H/U.
OK | ▶ If the sound is normal operating, replace the Audio H/U. |
NG | ▶ Go to step 4 |
Check the wiring of between speaker and Audio H/U.
Noise source description
Condition in Which Noise Occurs | Noise Type |
Depressing accelerator pedal increase noise, and stopping engine stops noise immediately | Generator nosie |
When A/C or heater is operating | Blower motor noise |
● When rapidly accelerating on unpaved road ● When engine switch is turned on (IG) | Fuel pump noise |
● When horn switch is pressed and released ● When horn switch is pressed and held down | Horn noise |
Running engine causes soft noise, and stopping engine stops noise immediately | Ignition noise |
Noise occurs synchronously with turn signal flash | Flasher noise |
Noise occurs during window washer operation | Washer noise |
Running engine causes noise, but stopping engine does not stop noise | Engine coolant temperature sensor noise |
When wiper is operating | Wiper noise |
When brake pedal is depressed | Stop light switch noise |
Other | Static electricity on vehicle |
OK | ▶ Check the noise source. |
NG | ▶ Refer to R-12 |
Check the front connecting cable and check again after replacing the front panel.
NG | ▶ Reconnect the cable and replace the front panel. |
OK | ▶ Replace the Audio H/U. And then if the Audio is normal operating, replac the Audio H/U. |
Check the antenna connection jack.
OK | ▶ Check again after reconnecting the antenna jack, It is poor connection. |
NG | ▶ Go to step 2 |
Check the antenna feeder cable connection and replace the antenna.
OK | ▶ Check again after repairing or replacing the wiring or replace the antenna. |
NG | ▶ Replace the Audio H/U. |
Symptom | Suspected area | Repairment |
Pressing power switch does not turn on system | Check to RESET | R-1 |
Check the connection | R-2 | |
Booting delay | R-3 | |
AUDIO H/U | R-4 | |
LCD module | R-5 | |
FREEZES | BT ISSUE | R-6 |
Check to RESET | R-7 | |
NO DISPLAY | Check the connection | R-2 |
LCD module | R-8 | |
Check to RESET | R-8 | |
Lines/Spot | LCD module | R-8 |
Touch INOP | LCD module | R-8 |
Check to RESET | R-1 | |
BLUETOOTH NOT PAIRING | Check the compatibility of BT (Check the phone kind) | R-9 |
Check to RESET | R-9 | |
BT module | R-9 | |
BLUETOOTH VOICE RECOGNITION | Check the compatibility of BT (Check the phone kind) | R-9 |
MIC module | R-10 | |
Check to RESET | R-9 | |
BT module | R-9 | |
BLUETOOTH STREAMING | Check the compatibility of BT (Check the phone kind) | R-9 |
Check to RESET | R-9 | |
BT module | R-9 | |
Back Veiw Camera Funtional | Back View Camera module | R-11 |
Check to RESET | R-11 | |
USB I/F ERROR | Check the compatibility of USB (Check the USB) | R-12 |
Check the connection of the multimedia terminals. | R-12 | |
Check to RESET | R-12 | |
iPOD I/F ERROR | Check the connection of the multimedia terminals. | R-12 |
Check to RESET | R-12 | |
No sound can be heard from speakers | Check to RESET | R-13 |
AUDIO H/U | R-13 | |
Check the wiring of between speaker | R-13 | |
Noise occurs | NOISE SOURCE definition | R-14 |
Check to RESET | R-13 | |
AUDIO H/U | R-13 | |
Check the wiring of between speaker | R-13 | |
Error Meassage | Check to RESET | R-15 |
AUDIO H/U | R-15 | |
Button/Tune | FRONT Panel | R-16 |
AUDIO H/U | R-16 | |
FM/AM RECEPTION | Check the vehicle wiring | R-17 |
Check the radio antenna | R-17 | |
Check to RESET | R-17 | |
AUDIO H/U | R-17 |
Push the RESET button.
OK | ▶ If the Audio is normal operation, it is OK. |
NG | ▶ Check the Audio H/U connector. (R-2) |
Check the Audio H/U power connector.
OK | ▶ Check again after repairing or replacing the cable harness or connentor. |
Tester Connection | Condition | Specificed Condition |
CON-B11 ↔ GND | Always | 9 ~ 16 V |
CON-B12 ↔ GND | Always | 9 ~ 16 V |
CON-B22 ↔ GND | Always | Below 1Ω |
CON-B24 ↔ GND | Always | Below 1Ω |
NG | ▶ Replace the Audio H/U. (R-4) |
Check to turn key to ACC OFF/ON after changing the back view display.
OK | ▶ If it happens to booting delay, replace the Audio H/U. |
NG | ▶ Replace the Audio H/U. (R-4) |
Replace the Audio H/U.
OK | ▶ If the Audio is normal operating, replace the Audio H/U. |
Sound is normal operating but the AVN screen does not display.
Check the LCD connection cable and replace the front panel.
OK | ▶ Reconnect the cable and replace the front panel. |
NG | ▶ Replace the Audio H/U. (R-4) |
Check happening to the problem while connecting the bluetooth.
Check again after releaseing the bluetooth connection.
OK | ▶ If it happends to the same problem again, replace the Audio H/U. |
NG | ▶ Refer to R-7 |
Check the RESET.
OK | ▶ If the Audio is normal operating, it is OK. |
NG | ▶ Replace the Audio H/U. |
Check the front connecting cable.
OK | ▶ If the Audio is normal operating, reconnect the cable. |
NG | ▶ Go to step 2 |
Replace the front panel.
OK | ▶ If the Audio is normal operating, replace the front panel. |
NG | ▶ Go to step 3 |
Check the RESET.
OK | ▶ If the Audio is normal operating, it is OK. |
NG | ▶ Replace the Audio H/U. |
Check the kind of phone which customer uses. (Compare with the compatibility list)
OK | ▶ It can not be pair for the model which is not in the compatibility list. |
NG | ▶ Go to step 2 |
Try to register after RESETing.
OK | ▶ If the bluetooth is normal operating, it is OK. |
NG | ▶ Go to step 3 |
Replace the Audio H/U.
Check the same problem again after replacing the MIC module.
OK | ▶ If the bluetooth is normal operating, replace the MIC module. |
NG | ▶ Go to step 2 |
Check for continuity between the termnials. (Open/ Ground short)
OK | ▶ If the bluetooth is normal operating, check the cable and connection. |
NG | ▶ Go to step 3 |
Refer to R-11.
Replace the back view camera.
OK | ▶ If the back view camera is normal operating, replace the back view camera. |
NG | ▶ Go to step 2 |
Check the vehicle wiring.
OK | ▶ If the back view camera is normal operating, check the cable and connection. |
NG | ▶ Go to step 3 |
Check the RESET.
OK | ▶ If the back view camera is normal operating, it is OK. |
NG | ▶ Go to step 4 |
Replace the Audio H/U.
Check the kind of USB and iPod.
OK | ▶ It can not be pair for the model which is not in the compatibility list. |
NG | ▶ Go to step 2 |
Replace the multimedia jack.
OK | ▶ If the USB and iPod is normal operating, replace the multimedia jack. |
NG | ▶ Go to step 3 |
Try to operate the USB or iPod after reseting the Audio H/U.
OK | ▶ If the USB and iPod is normal operating, it is OK. |
NG | ▶ Go to step 4 |
Check the vehicle wiring.
OK | ▶ If the USB and iPod is normal operating, check the connection and others. |
NG | ▶ Go to step 5 |
Replace the Audio H/U.
Check the connected connector of the external amplifier.
OK | ▶ Check again after repairing or replacing the cable harness or connector. |
NG | ▶ Go to step 2 |
Try to operate the sound after reseting the Audio H/U.
OK | ▶ If the sound is normal operating, it is OK. |
NG | ▶ Go to step 4 |
Replace the Audio H/U.
OK | ▶ If the Audio H/U is normal operating, replace the Audio H/U. |
NG | ▶ Go to step 5 |
Check the wiring of between speakers. (Check whether the wiring and speaker are poor or not.)
Noise source description
Condition in Which Noise Occurs | Noise Type |
Depressing accelerator pedal increases noise, and stopping engine stops noise immediately | Generator nosie |
When A/C or heater is operating | Blower motor noise |
● When rapidly accelerating on unpaved road ● When engine switch is turned on (IG) | Fuel pump noise |
● When horn switch is pressed and released ● When horn switch is pressed and held down | Horn noise |
Running engine causes soft noise, and stopping engine stops noise immediately | Ignition noise |
Noise occurs synchronously with turn signal flash | Flasher noise |
Noise occurs during window washer operation | Washer noise |
Running engine causes noise, but stopping engine does not stop noise | Engine coolant temperature sensor noise |
When wiper is operating | Wiper noise |
When brake pedal is depressed | Stop light switch noise |
Other | Static electricity on vehicle |
OK | ▶ Check the noise source. |
NG | ▶ Refer to R-15. |
Try to operate the Audio H/U, after reseting.
OK | ▶ If the Audio is normal operating, it is OK. |
NG | ▶ Go to step 2 |
Replace the Audio H/U.
Check the front connecting cable and check again after replacing the front panel.
OK | ▶ If the button/tune is normal operating, reconnect the cables. |
NG | ▶ Go to step 2 |
Replace the front panel.
OK | ▶ If the button/tune is normal operating, reconnect the cables. |
NG | ▶ Go to step 3 |
Try to operate the button/tune after reseting the Audio H/U.
OK | ▶ If the button/tune is normal operating, it is OK. |
NG | ▶ Go to step 4 |
Replace the Audio H/U.
Check the antenna connecting jack.
OK | ▶ Check again after reconnecting the antenna jack, It is poor connection. |
NG | ▶ Go to step 2 |
Check the antenna feeder cable connection and replace the antenna.
OK | ▶ Check again after repairing or replacing the wiring or replace the antenna. |
NG | ▶ Go to step 3 |
Try to operate the radio after reseting the Audio H/U.
OK | ▶ If the radio is normal operating, it is OK. |
NG | ▶ Go to step 4 |
Replace the Audio H/U.
There are six areas where a problem can occur: wiring harness, the radio, the USB/iPod, and speaker. Troubleshooting enables you to confine the problem to a particular area.
