Hyundai Sonata: Troubleshooting - Audio - Body Electrical SystemHyundai Sonata: Troubleshooting

Troubleshooting

Symptom
 Suspected area
 Repairment
Pressing power switch does not turn on system
 Radio receiver power source circuit
 R-1
LCD module
 R-1
Monitor
 R-7
Monitor power
R-9
R-10
Panel switch does not function
 Steering pad switch circuit
 R-3
Audio H/U front pcb ass'y
 R-1
Radio receiver power source circuit
 R-1
No sound can be heard from speakers
 Radio receiver power source circuit
 R-1
EXT. AMP I/F (For PA-760S)
 R-4
R-6
R-8
EXT. AMP power source (For PA-760S)
 R-5
Speaker ↔ H/U wiring
 R-11
Speaker input Waveform
 R-12
Noise occurs
 Proceed to "noise occurs"
 R-14
Radio broadcast cannot be received <poor reception>
 Proceed to "radio broadcast cannot be received (poor reception)"
 R-13
Disc cannot be inserted or is ejected right after insertion
 Radio receiver power source circuit
 R-1
Proceed to "Disc cannot be inserted or is ejected right after insertion"
 R-19
Disc cannot be ejected.
 Radio receiver power source circuit
 R-1
CD sound skips
 CD player
 R-20
Illumination for radio receiver does not come on whth light
control switch on.
 Illumination circuit
R-15
Head unit display
 R-15
Radio receiver power source circuit
 R-1
Display does not dim with light control switch turned on
 Illumination circuit
R-16
Power does not turn off
 Audio H/U
 R-1
Bluetooth voice recognition faulty
 Audio H/U
 R-1
Mic input
 R-17
USB I/F error
 Auido H/U
 R-1
Usb device faulty
 R-18
Multimedia terminal connection
 R-17
iPod I/F error
 Auido H/U
 R-1
Ipod faulty
 R-18
Multimedia terminal connection
 R-17
AUX connection error
 Auido H/U
 R-1
Multimedia terminal connection
 R-17

R-1 : Replace the audio head unit
1.
Check the same problems after replaceing 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)

R-2 : Check the power connection of audio head unit.
1.
Remove the audio head unit.
2.
Check the specified condition of terminal.

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.

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 audio 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 Audio 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-8)

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
 9~12 V
CON-E7 ↔ GND
 Always
 9~12 V
CON-E15 ↔ 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 audio head Unit.
2.
Remove the external amplifier
3.
Check the specified condition of terminal.

OK

Tester Connection
 Condition
 Specified Condition
CON-I1 ↔ CON-E5
 Always
 Below 1Ω
CON-I1 ↔ GND
CON-E5 ↔ GND
 Always
 OPEN
CON-I13 ↔ CON-E6
 Always
 Below 1Ω
CON-I13 ↔ GND
CON-E6 ↔ GND
 Always
 OPEN

NG
 ▶ Check again after repairing or replacing the Cable harness or Connector.

R-7 : Check the audio monitor CAN interface
1.
Remove the audio head unit.
2.
Remove the audio monitor.
3.
Check the specified condition of terminal.

OK

Tester Connection
 Condition
 Specified Condition
CON-I1 ↔ CON-C8
 Always
 Below 1Ω
CON-I1 ↔ GND
CON-C8 ↔ GND
 Always
 OPEN
CON-I13 ↔ CON-C7
 Always
 Below 1Ω
CON-I13 ↔ GND
CON-C7 ↔ GND
 Always
 OPEN

NG
 ▶ Check again after repairing or replacing the Cable harness or Connector.

R-8 : 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.

OK

Tester Connection
 Condition
 Specified Condition
CON-H6 ↔ CON-E19
 Always
 Below 1Ω
CON-H6 ↔ GND
CON-E19↔ GND
 Always
 OPEN
CON-H15 ↔ CON-E18
 Always
 Below 1Ω
CON-H15 ↔ GND
CON-E18 ↔ GND
 Always
 OPEN

NG
 ▶ Check again after repairing or replacing the Cable harness or Connector.

R-9 : Replace the audio monitor
1.
Check the same problems after replaceing the audio head unit
OK
 ▶ If Audio is normal operating, replace the audio head unit

NG
 ▶ Check the vehicle wiring. (Refer to R-10 and R-7)

R-10 : Check the monitor power cable
1.
Remove the audio monitor.
2.
Check the specified condition of terminal.

OK

Tester Connection
 Condition
 Specified Condition
CON-C9 ↔ GND
 Always
 9~12 V
CON-C10 ↔ GND
 Always
 9~12 V
CON-C4 ↔ GND
 Always
 OPEN

NG
 ▶ Check again after repairing or replacing the Cable harness or Connector.

R-11 : Check the wiring harness and connector
1.
Remove the audio head unit
2.
Remove the external amplifier (For PA760s)
OK
 ▶ FOR PA-710S

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

OK
 ▶ FOR PA-760S

Tester Connection
 Condition
 Specified Condition
CON-E12 ↔ SUB WOOFER2 +
 Always
 Below 1Ω
CON-E25 ↔ SUB WOOFER2 -
 Always
 Below 1Ω
CON-E13 ↔ SUB WOOFER1 +
 Always
 Below 1Ω
CON-E26 ↔ SUB WOOFER1 -
 Always
 Below 1Ω
CON-F7 ↔ CENTER SPK +
 Always
 Below 1Ω
CON-F14 ↔ CENTER SPK -
 Always
 Below 1Ω
CON-G1 ↔ RR DOOR SPK +
 Always
 Below 1Ω
CON-G7 ↔ RR DOOR SPK -
 Always
 Below 1Ω
CON-G2 ↔ RL DOOR SPK +
 Always
 Below 1Ω
CON-G8 ↔ RL DOORSPK -
 Always
 Below 1Ω
CON-G3 ↔ FR SPK +
 Always
 Below 1Ω
CON-G9 ↔ FR SPK -
 Always
 Below 1Ω
CON-G4 ↔ FL SPK +
 Always
 Below 1Ω
CON-G10 ↔ FL SPK -
 Always
 Below 1Ω
CON-G5 ↔ FR DOOR SPK +
 Always
 Below 1Ω
CON-G11 ↔ FR DOOR SPK -
 Always
 Below 1Ω
CON-G6 ↔ FL DOOR SPK +
 Always
 Below 1Ω
CON-G12 ↔ FL DOOR SPK -
 Always
 Below 1Ω
CON-E12, 13, 25, 26/ F7, 14/
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-12 : Check the wiring harness and connector
1.
Remove the audio head unit
2.
Remove the external amplifier (For PA760S)
3.
Check the output of audio head unit and external amplifier using the oscilloscope
OK
 ▶ FOR PA-710S

    Tester Connection
    		 Condition
    		 Specified Condition
    CON-A1 ↔ GND
    		 Audio sound is being produced
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