Symptom
| Suspected area
| Repairment
|
Pressing power switch does not turn on system
| AVN head unit receiver power source circuit
| R-2
|
AVN monitor
| R-15
|
Panel switch does not function
| Steering pad switch circuit
| R-3
|
AVN H/U front PCB assembly
| R-1
|
AVN head unit receiver power source circuit
| R-2
|
No sound can be heard from speakers
| AVN head unit receiver power source circuit
| R-2
|
EXT. AMP I/F
| R-4
|
R-6
|
R-7
|
EXT. AMP power source
| R-5
|
Check the wiring between speakers and AVN head unit
| R-8
|
Noise occurs
| Proceed to "noise occurs"
| R-14
|
AVN head unit broadcast cannot be received
| Proceed to "AVN head unit broadcast cannot be received (poor reception)"
| R-9
|
Disc cannot be inserted or is ejected right after insertion
| Disc cannot be inserted or is ejected right after insertion
| R-10
|
Disc cannot be ejected.
| AVN head unit receiver power source circuit
| R-2
|
Illumination for AVN head unit receiver does not come on whth light
| Illumination circuit
| R-11
|
control switch on.
| AVN head unit receiver power source circuit
| R-2
|
Display does not dim with light control switch turned on
| Illumination circuit
| R-11
|
Power does not turn off
| AVN head unit
| R-1
|
BLUETOOTH voice recongnition fault
| AVN head unit
| R-1
|
MIC input
| R-12
|
USB I/F error
| AVN head unit
| R-1
|
USB device fault
| R-13
|
Check the multimedia connector
| R-13
|
iPod I/F error
| AVN head unit
| R-1
|
iPod fault
| R-13
|
Check the multimedia connector
| R-13
|
AUX connection error
| AVN head unit
| R-1
|
Check the multimedia connector
| R-13
|
AVN monitor error
| AVN monitor unit
| R-15
|
AVN monitor unit receiver power source circuit
| R-16
|
R-1 : Replace the AVN head unit
| 1. |
Check the same problems after replaceing the AVN head unit
OK
| ? If AVN is normal operating, replace the AVN head unit
| NG
| ? Check the vehicle wiring. (Refer to removal procedure. R-2)
|
|
R-2 : Check the power connection of AVN head unit.
| 1. |
Remove the AVN head unit. |
| 2. |
Check the specified condition of terminal. 
OK
|
Tester Connection
| Condition
| Specified Condition
| CON-B11 - GND
| Always
| 9~16 V
| CON-B12 - GND
| Always
| 9~16 V
| CON-B24 - GND
| Always
| Below 1?
|
| NG
| ? Check again after repairing or replacing the Cable harness or Connector.
|
|
R-3 : Check the steering wheel remote control
| 1. |
Check the steering wheel remote control connector specification (Refer to "Audio remote control - inspection")
OK
| ? Replace the AVN head unit. (Refer to R-1)
| NG
| ? Replace the steering wheel remote control switch.
|
|
R-4 : Replace the external amplifier
| 1. |
Check the same problems after replaceing the external amplifier
OK
| ? If AVN is normal operating, replace the external amplifier
| NG
| ? Check the connectors of external amplifier power and interface (Refer to R-5,R-6 and R-7)
|
|
R-5 : Check the external amplifier power cable
| 1. |
Remove the external amplifier |
| 2. |
Check the specified condition of terminal. 
OK
|
Tester Connection
| Condition
| Specified Condition
| CON-E1 - GND
| Always
| 9~16 V
| CON-E7 - GND
| Always
| 9~16 V
| CON-E14 - GND
| Always
| Below 1?
|
| NG
| ? Check again after repairing or replacing the Cable harness or Connector.
|
|
R-6 : Check the external amplifier CAN interface
| 1. |
Remove the AVN head Unit. |
| 2. |
Remove the external amplifier |
| 3. |
Check the specified condition of terminal.
Tester Connection
| Condition
| Specified Condition
| CON-B1 - CON-E5
| Always
| Below 1?
| CON-B1 - GND
CON-E5 - GND
| Always
| OPEN
| CON-B13 - CON-E6
| Always
| Below 1?
| CON-B13 - GND
CON-E6 - GND
| Always
| OPEN
|
NG
| ? Check again after repairing or replacing the Cable harness or Connector.
|
|
R-7 : Check the external amplifier S/PDIF connection
| 1. |
Remove the audio head unit. |
| 2. |
Remove the external amplifier |
| 3. |
Check the specified condition of terminal.
Tester Connection
| Condition
| Specified Condition
| CON-A6 - CON-E18
| Always
| Below 1?
| CON-A6 - GND
CON-E18- GND
| Always
| OPEN
| CON-A15 - CON-E1
| Always
| Below 1?
| CON-A15 - GND
CON-E19 - GND
| Always
| OPEN
|
NG
| ? Check again after repairing or replacing the Cable harness or Connector.
|
|
R-8 : Check the wiring harness and connector
| 1. |
Remove the AVN head unit |
| 2. |
Remove the external amplifier
Tester Connection
| Condition
| Specified Condition
| CON-E12 - SUB WOOFER2 +
| Always
| Below 1?
| CON-E25 - SUB WOOFER2 -
| Always
| Below 1?
| CON-E13 - SUB WOOFER1 +
| Always
| Below 1?
| CON-E26 - SUB WOOFER1 -
| Always
| Below 1?
| CON-G1 - RR DOOR SPK +
| Always
| Below 1?
| CON-G7 - RR DOOR SPK -
| Always
| Below 1?
| CON-G2 - RL DOOR SPK +
| Always
| Below 1?
| CON-G8 - RL DOORSPK -
| Always
| Below 1?
| CON-G3 - FR SPK +
| Always
| Below 1?
| CON-G9 - FR SPK -
| Always
| Below 1?
| CON-G4 - FL SPK +
| Always
| Below 1?
| CON-G10 - FL SPK -
| Always
| Below 1?
| CON-G5 - FR DOOR SPK +
| Always
| Below 1?
| CON-G11 - FR DOOR SPK -
| Always
| Below 1?
| CON-G6 - FL DOOR SPK +
| Always
| Below 1?
| CON-G12 - FL DOOR SPK -
| Always
| Below 1?
| CON-F1 - Surround Right +
| Always
| Below 1?
| CON-F9 - Surround Right -
| Always
| Below 1?
| CON-F2 - Surround Left +
| Always
| Below 1?
| CON-F10 - Surround Left -
| Always
| Below 1?
| CON-F7 - Center SPK +
| Always
| Below 1?
| CON-F15 - Center SPK -
| Always
| Below 1?
| CON-E12,13,25,26/ F1,2,7,9,10,15/ G1,2,3,4,5,6,7,8,9,10,11,12 - GND
| Always
| OPEN
|
NG
| ? Check again after repairing or replacing the Cable harness or Connector.
|
|
R-9 : Radio Broadcast cannot be Received (Bad reception)
| 1. |
Check the radio broadcast reception after replacing the AVN head unit
OK
| ? If AVN is normal operating, replace the AVN head unit
|
|
| 2. |
Check the antenna jack
NG
| ? Check again the radio broadcast reception after connecting the antenna jack
|
|
| 3. |
Check the antenna amp input voltage (Refer to "Antenna - Glass antenna circuit inspection")
NG
| ? Check the antenna amp input voltage (Refer to "Antenna - Antenna cable")
|
|
| 4. |
Check the feeder cable connection (Refer to "Antenna - Antenna cable")
NG
| ? Check again after repairing or replacing the antenna feeder cable.
|
|
| 5. |
Check again the radio broadcast reception after replacing the external amplifier
OK
| ? If Audio is normal operating, replace the external amplifier
|
|
| 6. |
Check and repair the glass antenna. (Refer to "Antenna - Glass antenna test") |
R-10 : Disc cannot be inserted or ejected right after insertion
| 1. |
Is the ignition key at ACC or ON?
|
| 2. |
Power ON reset. Disconnect the 2 audio fuses, wait 5 minutes
with ignition switch off. And then insert both fuse. Then turn the
ignition key ON. Is CD ejected?
OK
| ? Loock for foreign matters in CD player. Such as paper lables, coins etc.
|
|
| 3. |
If CD does not eject, don't try removing it. The player may be damaged. Please replace the CD player. |
R-11 : Check again after replacing the AVN head unit
OK
| ? Remove the audio head unit
|
| 1. |
Check the input signal of Illumination (+)
Tester Connection
| Condition
| Specified Condition
| CON-A8 - GND
| Always
| 9~16 V
|
NG
| ? Check the vehicle wiring
|
|
| 2. |
Check the illumination (-) input signal using the oscilloscope
Tester Connection
| Condition
| Specified Condition
| CON-A17 - GND
| Always
| Check the PWM waveform
|
NG
| ? Check the vehicle wiring and cluster PWM output.
|
|
| 3. |
Check the vehicle illumination control unit. |
R-12 : Check the mic input condition.
Tester Connection
| Condition
| Specified Condition
|
CON-B10 - MIC+
| Always
| Below 1?
|
CON-B22 - MIC-
| Always
| Below 1?
|
CON-B22 - GND
| Always
| OPEN
|
NG
| ? Check the vehicle wiring and mic
|
| 1. |
Test again after replacing the mic |
R-13 : Test after replacing the AVN head unit
OK
| ? Replace the AVN head unit
|
| 1. |
Test after replacing the multimedia jack.
OK
| ? Replace the multimedia jack .
|
|
| 2. |
Check the multimedia jack connector.
Tester Connection
| Condition
| Specified Condition
| CON-B7 - CON-D4
| Always
| Below 1?
| CON-B8 - CON-D1
| Always
| Below 1?
| CON-B9 - CON-D7
| Always
| Below 1?
| CON-B19 - COND10
| Always
| Below 1?
| CON-B20 - CON-D3
| Always
| Below 1?
| CON-B21 - CON-D2
| Always
| Below 1?
| CON-B23 - CON-D12
| Always
| Below 1?
|
NG
| ? Check the vehicle wiring
|
|
| 3. |
Check again after replacing the external input device with another one. |
R-14 : Sound sometimes skips when parking
| 1. |
Is CD face scratched or dirty?
OK
| ? CD is defective, or clean CD
|
|
| 2. |
Does it play properly if CD is replaced with an existing proper CD?
NG
| ? Repair or replace CD player
|
|
R-15 : Replace the AVN monitor
| 1. |
Check the same problems after replaceing the AVN monitor
OK
| ? If AVN is normal operating, replace the AVN monitor.
|
NG
| ? Check the vehicle wiring and LVDS cable. (Refer to removal procedure. R-16)
|
|
R-16 :Check the power connection of AVN monitor
| 1. |
Remove the AVN monitor. |
| 2. |
Check the specified condition of terminal. 
OK
|
Tester Connection
| Condition
| Specified Condition
| CON-H1 - GND
| Always
| 9~16 V
| CON-H5 - GND
| Always
| 9~16 V
| CON-H9 - GND
| Always
| Below 1?
|
| NG
| ? Check again after repairing or replacing the Cable harness or Connector
|
|
Removal
Roof Antenna (GPS)
1.
Remove the rear roof trim.
(Refer to Body - "Roof Trim Assembly")
2.
Disconnect the GPS (A) cable from the roof antenna.
3.
Remove the roof antenna after re ...
Hyundai Azera: Troubleshooting
Fifth generation HG (2011–2024) / Hyundai Azera 2011-2024 Service Manual / Body Electrical System / AVN System / Troubleshooting
Roof antenna Repair procedures
MTS System