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 ...
See also:
Automatic Transaxle Repair procedures
Removal
1.
Engine cover.
(Refer to Engine Mechanical System - "Engine cover")
2.
Air cleaner assembly and air duct.
(Refer to Engine Mechanical System - "Air cleaner")
3.
Battery and ba ...
Roof antenna Repair procedures
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 ...
Spark Plug Repair procedures
Removal and Installation
1.
Remove the ignition coils.
(Refer to Ignition System - "Ignition Coil")
2.
Using a spark plug socket, remove the spark plug.
Tightening torque :
14.7 ~ 24.5N. ...
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