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Troubleshooting Guide: Notes

TROUBLESHOOTING GUIDE DESCRIPTION (STEP TYPE)

Symptom Suspected area Repairment
Pressing power switch does not turn on system Radio receiver power source circuit R-1: REPLACE THE AVN HEAD UNIT 
LCD module R-1: REPLACE THE AVN HEAD UNIT 
Panel switch does not function Steering pad switch circuit R-3: CHECK THE STEERING WHEEL REMOTE CONTROL 
AVN head unit front PCB assy. R-1: REPLACE THE AVN HEAD UNIT 
Radio receiver power source circuit R-1: REPLACE THE AVN HEAD UNIT 
No sound can be heard from speakers Radio receiver power source circuit R-1: REPLACE THE AVN HEAD UNIT 
EXT. amplifier I/F R-4: REPLACE THE EXTERNAL AMPLIFIER 
R-6: CHECK THE EXTERNAL AMPLIFIER CAN INTERFACE 
R-7: CHECK THE EXTERNAL AMPLIFIER SPDIF CONNECTION 
R-8: CHECK THE WIRING HARNESS AND CONNECTOR 
EXT. amplifier power source R-5: CHECK THE EXTERNAL AMPLIFIER POWER CABLE 
Check the wiring between speakers and AVN H/U R-11: CHECK AGAIN AFTER REPLACING THE AVN H/U 
Noise occurs Proceed to "noise occurs" R-10: CHECK THAT SPEAKERS ARE INSTALLED TIGHTLY 
Radio broadcast cannot be received (poor reception) Proceed to "RADIO BROADCAST CANNOT BE RECEIVED " (poor reception) R-9: RADIO BROADCAST CANNOT BE RECEIVED (BAD RECEPTION) 
Illumination for radio receiver does not come on within light control switch on Illumination circuit R-11: CHECK AGAIN AFTER REPLACING THE AVN H/U 
Radio receiver power source circuit R-1: REPLACE THE AVN HEAD UNIT 
Display does not dim with light control switch turned on Illumination circuit R-11: CHECK AGAIN AFTER REPLACING THE AVN H/U 
Power does not turn off AVN H/U R-1: REPLACE THE AVN HEAD UNIT 
Bluetooth voice recognition fault AVN H/U R-1: REPLACE THE AVN HEAD UNIT 
MIC input R-12: CHECK THE MICROPHONE INPUT CONDITION 
USB I/F error AVN head unit R-1: REPLACE THE AVN HEAD UNIT 
USB device fault R-13: TEST AFTER REPLACING THE AVN H/U 
Check the multimedia connector R-13: TEST AFTER REPLACING THE AVN H/U 
iPod I/F error AVN H/U R-1: REPLACE THE AVN HEAD UNIT 
Check the multimedia connector R-13: TEST AFTER REPLACING THE AVN H/U 
AUX connection error AVN H/U R-1: REPLACE THE AVN HEAD UNIT 
Check the multimedia connector R-13: TEST AFTER REPLACING THE AVN H/U