Audio/Video/Navigation (AVN) System: Troubleshooting

Symptom	Suspected area	Repair
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 with 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 recognition 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 replacing 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.
   Fig 1: Identifying AVN Head Unit Connector Terminals

   Courtesy of HYUNDAI MOTOR AMERICA

   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 1Ω

   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 "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 replacing 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.
   Fig 2: External Amplifier Connector Terminals

   Courtesy of HYUNDAI MOTOR AMERICA

   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 1Ω

   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.
   Fig 3: AVN Head Unit Connector Terminals

   Courtesy of HYUNDAI MOTOR AMERICA