Kia Soul: Troubleshooting Guide - AVN System - Body Electrical SystemKia Soul: Troubleshooting Guide

Kia Soul 2014-2019 PS Service Manual / Body Electrical System / AVN System / Troubleshooting Guide

Troubleshooting (Step type)
Symptom
 Suspected area
 Repairment
Pressing power switch does not turn on system
 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
EXT. amplifier I/F
 R-4
R-6
R-7
R-8
EXT. amplifier powre source
 R-5
Check the wiring between speakers and AVN H/U
 R-11
Noise occurs
 Proceed to "noise occurs"
 R-10
Radio broadcast cannot be received (poor reception)
 Proceed to "radio broadcast cannot be received"
(poor reception)
 R-9
Illumnination for radio receiver does not come on within light control switch on
 Illumination circuit
 R-11
Radio receiver power source circuit
 R-1
Display does not dim with light control switch turned on
 Illumination circuit
 R-11
Power does not turn off
 AVN H/U
 R-1
Bluetooth voice recognition fault
 AVN H/U
 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 H/U
 R-1
Check the multimedia connector
 R-13
AUX connection error
 AVN H/U
 R-1
Check the multimedia connector
 R-13

R-1 : Replace the AVN head unit
1.
Check the same problem after replacing the AVN H/U.
OK
 ▶ If AVN is normal operating, 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
1.
Remove the AVN H/U.
2.
Check the specified condition of terminal.

OK

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 1Ω
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 AVN H/U

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 connection 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-B10 ↔ GND
 Always
 9 ~ 16 V
CON-B6 ↔ GND
 Always
 9 ~ 16 V
CON-B21 ↔ GND
 Always
 Below 1Ω
CON-B22 ↔ 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 H/U
2.
Remove the external amplifier
3.
Check the specified condition of terminal

OK

Tester Connection
 Condition
 Specified Condition
AVN H/U CON-B1 ↔ EXT. amplifier CON-D8
 Always
 Below 1Ω
AVN H/U CON-B1 ↔ GND
EXT. amplifier CON-D8 ↔ GND
 Always
 Open
AVN H/U CON-B13 ↔ EXT. amplifier CON-D7
 Always
 Below 1Ω
AVN H/U CON-B13 ↔ GND
EXT. amplifier CON-D7 ↔ GND
 Always
 Open

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

R-7 : Check the external amplifier SPDIF connection
1.
Remove the AVN H/U
2.
Remove the external amplifier
3.
Check the specified condition of terminal

OK

Tester Connection
 Condition
 Specified Condition
AVN H/U CON-A6 ↔ EXT. amplifier CON-D19
 Always
 Below 1Ω
AVN H/U CON-A6 ↔ GND
EXT. amplifier CON-D19 ↔ GND
 Always
 Open
AVN H/U CON-A15 ↔ EXT. amplifier CON-D18
 Always
 Below 1Ω
AVN H/U CON-A15 ↔ GND
EXT. amplifier CON-D18 ↔ 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 H/U
2.
Remove the external amplifier

OK

Tester Connection
 Condition
 Specificed Condition
CON-A5 ↔ Subwoofer2 (+)
 Always
 Below 1Ω
CON-A11 ↔ Subwoofer2 (-)
 Always
 Below 1Ω
CON-A6 ↔ Subwoofer1 (+)
 Always
 Below 1Ω
CON-A12 ↔ Subwoofer1 (-)
 Always
 Below 1Ω
CON-A4 ↔ Right side door (+)
 Always
 Below 1Ω
CON-A10 ↔ Right side door (-)
 Always
 Below 1Ω
CON-A3 ↔ Left side door (+)
 Always
 Below 1Ω
CON-A9 ↔ Left side door (-)
 Always
 Below 1Ω
CON-B1 ↔ Front center door (+)
 Always
 Below 1Ω
CON-B12 ↔ Front center door (-)
 Always
 Below 1Ω
CON-A2 ↔ Right front door (+)
 Always
 Below 1Ω
CON-A8 ↔ Right front door (-)
 Always
 Below 1Ω
CON-A1 ↔ Left front door (+)
 Always
 Below 1Ω
CON-A7 ↔ Left front door (-)
 Always
 Below 1Ω

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 H/U
OK
 ▶ If AVN is normal operating, replace the AVN H/U

NG
 ▶ Go to step 2

2.
Check the antenna jack
OK
 ▶ Check again the radio broadcast reception after connecting the antenna jack

NG
 ▶ Go to step 3

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”)

NG
 ▶ Go to step 4

4.
Check the feeder cable connection (Refer to “Antenna –Antenna cable”)
OK
 ▶ Check again after repairing or replacing the antenna feeder cable.

NG
 ▶ Go to step 5

5.
Check and repair the roof antenna.
R-10 : Check that speakers are installed tightly
OK
 ▶ Install the speakers tightly

NG
 ▶ Install the speakers tightly

1.
Noise source description
Condition in Which Noise Occurs
 Noise Type
Depressing accelerator pedal increases noise, and stopping engine stops noise immediately
 Generator nosie
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-11 : Check again after replacing the AVN H/U

OK
 ▶ Removed the AVN H/U

NG
 ▶ Go to step 1

1.
Check the input signal of illumination (+)
Tester Connection
 Condition
 Specificed Condition
CON-A8 ↔ GND
 Always
 9~16 V

OK
 ▶ Check the vehicle wiring

NG
 ▶ Go to step2

2.
Check the illumination (-) input signal using the oscilloscope
Tester Connection
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