Climate Control-Audio Communication Line Circuit Troubleshooting
  1. With navigation: Connect the audio/navigation switch panel 24P connector No. 7 and No. 19 terminals with a jumper wire. Without navigation: Connect the center display unit 12P connector No. 7 and No. 8 terminals with a jumper wire.
  1. Turn the ignition switch to ON (II).
  1. Press and hold the DEF button and OFF button.
Is the DEF button LED blinking?
YES -
Audio/navigation switch panel or center display unit is faulty, replace the audio/navigation switch panel or center display unit. ■
NO -
Climate control unit is faulty, replace the climate control unit. ■