Audio System: Troubleshooting

1. Check the same problems after replacing the audio head unit

   OK

   • If Audio is normal operating, replace the audio head unit

   NG

   • Check the vehicle wiring. (Refer to removal procedure. R-2)

1. Remove the audio head unit.
2. Check the specified condition of terminal.
   Fig 1: Identifying Audio Head Unit Connector Terminals

   Courtesy of HYUNDAI MOTOR AMERICA

   OK

   Tester Connection	Condition	Specified Condition
   CON-B11 ↔ GND	Always	9~12 V
   CON-B12 ↔ GND	Always	9~12 V
   CON-B24 ↔ GND	Always	Below 1Ω

   NG

   • Check again after repairing or replacing the Cable harness or Connector.

1. Check the steering wheel remote control connector specification (Refer to " INSPECTION ")

   OK

   • Replace the audio head unit. (Refer to  R-1)

   NG

   • Replace the steering wheel remote control switch.

1. Remove the audio head unit

   OK 

   • FOR PA-710S
     Fig 2: Identifying Audio Head Unit Connector Terminals (FOR PA-710S)

     Courtesy of HYUNDAI MOTOR AMERICA

     Tester Connection	Condition	Specified Condition
     CON-A1 ↔ RL SPK +	Always Below	1Ω
     CON-A10 ↔RL SPK -	Always	Below 1Ω
     CON-A2 ↔ FL SPK +	Always	Below 1Ω
     CON-A11 ↔ FL SPK -	Always	Below 1Ω
     CONA3 ↔ FR SPK +	Always	Below 1Ω
     CON-A12 ↔ FR SPK -	Always	Below 1Ω
     CON-A4 ↔ RR SPK +	Always	Below 1Ω
     CON-A13 ↔ RR SPK -	Always	Below 1Ω
     CON-A1, 2, 3, 4, 10, 11, 12, 13 ↔ GND	Always	OPEN

1. Remove the audio head unit
2. Check the output of audio head unit using the oscilloscope

   OK 

   • FOR PA-710RB
     Fig 3: Identifying Audio Head Unit Connector Terminals (FOR PA-710RB)

     Courtesy of HYUNDAI MOTOR AMERICA

     Tester Connection	Condition	Specified Condition
     CON-A1 ↔ GND	Audio sound is being produced	A waveform synchronized with sound is output
     CON-A10 ↔ GND	Audio sound is being produced	A waveform synchronized with sound is output
     CON-A2 ↔ GND	Audio sound is being produced	A waveform synchronized with sound is output
     CON-A11 ↔ GND	Audio sound is being produced	A waveform synchronized with sound is output
     CON-A3 ↔ GND	Audio sound is being produced	A waveform synchronized with sound is output
     CON-A12 ↔ GND	Audio sound is being produced	A waveform synchronized with sound is output
     CON-A4 ↔ GND	Audio sound is being produced	A waveform synchronized with sound is output
     CON-A13 ↔ GND	Audio sound is being produced	A waveform synchronized with sound is output

1. Check the radio broadcast reception after replacing the audio head unit

   OK 

   • If Audio is normal operating, replace the audio head unit

   NG 

   • Go to step 2
2. Check the antenna jack

   NG 

   • Check again the radio broadcast reception after connecting the antenna jack

   OK 

   • Go to step 3
3. Check the antenna amp input voltage (Refer to "Antenna - Glass antenna circuit inspection"

   NG 

   • Check the antenna amp input voltage (Refer to " ANTENNA CABLE "

   OK 

   • Go to step 4
4. Check the feeder cable connection (Refer to " ANTENNA CABLE ")

   NG 

   • Check again after repairing or replacing the antenna feeder cable.

   OK 

   • Go to step 5
5. Check and repair the glass antenna. (Refer to "Antenna - Glass antenna test")

NG 

• Install the speakers tightly.

OK 

• Go to step 1

1. Noise source description

   Condition in Which Noise Occurs	Noise Type
   Depressing accelerator pedal increases noise, and stopping engine stops noise immediately	Generator noise
   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 

   • Check again after replacing the audio head unit
2. Repair or replace the noise source

Fig 4: Identifying Audio Head Unit Connector Terminals

Courtesy of HYUNDAI MOTOR AMERICA

OK 

• Remove the audio head unit

NG 

• Go to step 1

1. Check the input signal of Illumination (+)

   FOR PA-710S 

   Tester Connection	Condition	Specified Condition
   CON-A8/H8 ↔ GND	Always	9~16 V
   CON-C4 ↔ GND	Always	Below 1Ω

   NG 

   • Check the vehicle wiring

   OK 

   • Go to step 2
2. Check the illumination (-) input signal using the oscilloscope

   FOR PA-710S 

   Tester Connection	Condition	Specified Condition
   CON-A17/H17 ↔ GND	Always	Check the PWM waveform

   NG 

   • Check the vehicle wiring and cluster PWM output.

   OK 

   • Go to step 3
3. Check the vehicle illumination control unit.

OK 

• Replace the audio head unit

NG 

• Go to step 1

1. Check the illumination (-) input signal using the oscilloscope

   FOR PA-710S 

   Tester Connection	Condition	Specified Condition
   CON-A17/H17 ↔ GND	Always	Check the PWM waveform

   Is PWM output waveform changed according to vehicle illumination control?

   NG 

   • Check the vehicle wiring and cluster PWM output module.

   OK 

   • Go to step 2
2. Check the illumination detent input signal.

   FOR PA-710S 

   Tester Connection	Condition	Specified Condition
   CON-A9 ↔ GND	Always	LOW: DETENT OFF

   NG 

   • Check the vehicle wiring and cluster DETENT output signal

   OK 

   • Go to step 3
3. Check the vehicle illumination control unit.

NG 

• Check the vehicle wiring and B/T mic

OK 

• Go to step 1

1. Test again after replacing the B/T mic

Fig 5: Identifying Audio Head Unit Connector D Terminals

Courtesy of HYUNDAI MOTOR AMERICA

OK 

• Replace the audio head unit

NG 

• Go to step 1

1. Test after replacing the multimedia jack.

   OK 

   • Replace the multimedia jack.

   NG 

   • Go to step 2
2. Check the multimedia jack connector.

   Tester Connection	Condition	Specified Condition
   CON-B6/I16 ↔ CON-D3	Always	Below 1Ω
   CON-B18/I18 ↔ CON-D2	Always	Below 1Ω
   CON-B7/I7 ↔ CON-D1	Always	Below 1Ω
   CON-B8/I8 ↔ COND16	Always	Below 1Ω
   CON-B9/I9 ↔ CON-D6	Always	Below 1Ω
   CON-B20/I20 ↔ CON-D14	Always	Below 1Ω
   CON-B21/I21 ↔ CON-D7	Always	Below 1Ω
   CON-B/I 6, 18, 7, 8, 20, 21 ↔ GND	Always	OPEN

   NG 

   • Check the vehicle wiring

   OK 

   • Go to step 3
3. Check again after replacing the external input device with another one.

1. Is the ignition key at ACC or ON?

   OK 

   • Go to step 2

   NG 

   • Turn the key to ON
2. Power ON reset. Disconnect the 2 audio fuses, wait 5 minutes with ignition switch off. Then insert both fuses. Then turn the ignition key ON. Is CD ejected?

   OK 

   • Look for foreign matter in CD player such as paper labels, coins etc.

   NG 

   • Go to step 3
3. If CD does not eject, don't try removing it. The player may be damaged. Please replace the CD player.

1. Is CD face scratched or dirty?

   OK 

   • CD is defective, or clean CD

   NG 

   • Go to step 2
2. Does it play properly if CD is replaced with an existing proper CD?

   OK 

   • Replace CD

   NG 

   • Repair or replace CD player