Kia Soul EV: AVN System / Troubleshooting
Troubleshooting (In stages)
Trouble Symptom Probable Cause Remedy System does not turn on when power switch is pressed Radio receiver power source circuit R-1 LCD module R-1 Panel switch does not function Steering pad switch circuit R-3 AVN head unit 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 Check the wiring between speakers and AVN H/U R-6 Noise occurs Proceed to "noise occurs" R-5 Radio broadcast cannot be received (poor reception) Proceed to "radio broadcast cannot be received" (poor reception) R-4 Radio receiver lamp does not operate when light control switch is on Illumination circuit R-6 Radio receiver power source circuit R-1 Display does not dim out when light control switch is on Illumination circuit R-6 Power does not turn off AVN H/U R-1 Bluetooth voice recognition fault AVN H/U R-1 MIC input R-7 USB I/F error AVN head unit R-1 USB device fault R-8 Check the multimedia connector R-8 iPod I/F error AVN H/U R-1 Check the multimedia connector R-8 AUX connection error AVN H/U R-1 Check the multimedia connector R-8
R-1 : Replace the AVN head unit
1.
Check the same problem after replacing the AVN H/U.
OK ? If AVN is operating normally, replace the AVN H/U.
NG ? Check the vehicle wiring. (Refer to removal procedure, R-2)
R-2 : Check the power connection of AVN H/U
2.
Check the specified condition of terminal.
Tester Connection Condition Specified Condition CON-B11/B12 - GND (B+) Always 9 ~ 16 V CON-B18 - GND (ACC) Always 9 ~ 16 V CON-B23 - GND Always Below 1? 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”)
NG ? Replace the steering wheel remote control switch
R-4 : Radio broadcast cannot be received (Bad reception)
1.
Check the radio broadcast reception after replacing the AVN H/U
OK ? If AVN is operating normally, replace the AVN H/U.
2.
Check the antenna jack
OK ? Check the radio broadcast reception again after connecting the antenna jack.
3.
Check the antenna amp input voltage (Refer to “Antenna –Glass antenna circuit inspection”)
OK ? Check the antenna amp input voltage (Refer to “Antenna –Antenna cable”)
4.
Check the feeder cable connection (Refer to “Antenna –Antenna cable”)
OK ? Check again after repairing or replacing the antenna feeder cable.
5.
Check and repair the roof antenna.
R-5 : Check that speakers are installed tightly
OK ? Install the speakers tightly
NG ? Install the speakers tightly
1.
Noise source description
Conditions of Noise Occurrences 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
R-6 : Check again after replacing the AVN H/U
1.
Check the input signal of illumination (+)
Tester Connection Condition Specificed Condition CON-A8 - GND Always 9~16 V
OK ? Check the vehicle wiring
2.
Check the illumination (-) input signal using the oscilloscope
Tester Connection Condition Specificed Condition CON-A17 - GND Always Check the PWM waveform
OK ? Check the vehicle wiring and cluster PWM output
3.
Check the vehicle illumination control unit
R-7 : Check the microphone input condition
Tester Connection Condition Specificed Condition CON-B10 - MIC (+) Always Below 1? CON-B22 - MIC (-) Always Below 1? CON-B22 - GND Always Open
OK ? Check the vehicle wiring and microphone
1.
Test again after replacing the microphone
R-8 : Test after replacing the AVN H/U
1.
Test after replacing the multimedia jack
OK ? Replace the multimedia jack
2.
Check the vehicle USB cable.
OK ? Replace the vehicle USB cable
3.
Check the multimedia jack connector
Tester Connection Condition Specificed Condition AVN H/U CON-B8 - Multimedia jack CON-C2 Always Below 1? AVN H/U CON-B21 - Multimedia jack CON-C1 Always Below 1? AVN H/U CON-B20 - Multimedia jack CON-C3 Always Below 1? AVN H/U CON-B9 - Multimedia jack CON-C7 Always Below 1?
Troubleshooting (Flow chart type)
There are six areas where a problem can occur
: the power system, the LCD/LED system, the sound system, the radio system, the USB/iPod/AUX system, and the bluetooth system.
Troubleshooting enables you to narrow down to the specific cause of the problem.
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Disconnect the roof antenna connectors (A).
3.
Disconnect the roof antenna power connector (A).
4.
Remove the roof antenna a ...
Other information:
Component Location
1. Tail gate latch assembly
...
Component Location
1. Rear glass defogger relay (Built-in smart junction box)2. Rear glass defogger switch (FATC type)3. Rear glass defogger
...
Roof Antenna Repair procedures
