Problem Symptoms Table

HINT:

• Use table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" . Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
• Inspect the fuses and relays related to this system before inspecting the suspected areas below.

1. DISPLAY FUNCTION 
   PROBLEM SYMPTOMS TABLE - DISPLAY FUNCTION
   
   

   Symptom	Suspected Area
   Black screen (no image appears on navigation/audio screen)	Black screen (no image appears on navigation and audio screen) Power source circuit (multi-display) Replace multi-display
   Display does not dim (night screen) with TAIL switch on	Display Does Not Dim (Night Screen) With Tail Switch On Nighttime illumination signal circuit Replace multi-display
   Power does not turn off (screen remains on)	Power source circuit (multi-display) Replace multi-display
   Touch panel switch does not function	Touch panel switch does not function Power source circuit (multi-display) Replace multi-display
   Screen is distorted	Display signal circuit (navigation ECU - multi-display) Replace navigation ECU Replace multi-display
   Screen flickers or has color problems	Screen flickers or has color problems Display signal circuit (navigation ECU - multi-display) Replace navigation ECU Replace multi-display
   No switches function while vehicle is running	Speed signal circuit (multi-display - combination meter assy)
   Display panel does not open or tilt, or tilts is defective	Display panel does not open or tilt, or tilts is defective AVC-LAN circuit (radio receiver assy - gateway ECU) AVC-LAN circuit (radio receiver assy - multi-display) Panel switch circuit Replace instrument cluster finish panel sub-assy center Replace multi-display Replace A/C amplifier assy
   Panel switch does not function	Panel switch does not function Power source circuit (multi-display) Replace multi-display

2. NAVIGATION FUNCTION 
   PROBLEM SYMPTOMS TABLE - NAVIGATION FUNCTION
   
   

   Symptom	Suspected Area
   Map disc cannot be inserted	Map disc cannot be inserted Power source circuit (navigation ECU) Replace navigation ECU
   Map disc cannot be ejected	Power source circuit (navigation ECU) Replace navigation ECU
   Vehicle position mark is very inaccurate	Vehicle position mark is very inaccurate Replace GPS antenna assy Replace navigation ECU
   Cursor or map rotates when vehicle is stopped	Cursor or map rotates when vehicle is stopped Replace navigation ECU
   Vehicle position mark is not updated	Vehicle position mark is not updated Replace map disc Replace navigation ECU
   Current position display does not appear	Current position display does not appear Replace map disc Replace navigation ECU
   GPS mark is not displayed	GPS mark is not displayed Replace GPS antenna assy Replace navigation ECU
   Voice guidance does not function	Voice guidance does not function Mute signal circuit (stereo component amplifier assy -navigation ECU) Speaker circuit (navigation voice) Replace map disc Replace stereo component amplifier assy Replace navigation ECU
   Map display is incomplete	Map display is incomplete Replace map disc Replace navigation ECU
   Route cannot be calculated	Route cannot be calculated Replace map disc Replace navigation ECU
   Voice recognition problems occur	Voice recognition problems occur Replace navigation ECU
   Voice is not recognized	Voice is not recognized Microphone circuit (telephone microphone - multi-display) Microphone circuit (multi-display - navigation ECU) Replace navigation ECU Replace multi-display
   Panel switch does not function	Panel switch does not function Power source circuit (multi-display) Replace multi-display

3. STEERING PAD SWITCH FUNCTION 
   PROBLEM SYMPTOMS TABLE - STEERING PAD SWITCH
   
   

   Symptom	Suspected Area
   Voice navigation cannot be operated with steering pad switch.	Steering pad switch circuit Replace steering pad switch modulator Replace navigation ECU

4. BLUETOOTH FUNCTION 
   PROBLEM SYMPTOMS TABLE - BLUETOOTH FUNCTION
   
   

   Symptom	Suspected Area
   Cellular phone registration and phone directory transfer failure.	Cellular phone registration and phone directory transfer failure
   Cellular phone cannot make/receive calls.	Cellular phone cannot make/receive calls Own voice cannot be heard, is too quiet or is distorted Cellular phone voice circuit (multi-display - navigation ECU) Replace navigation ECU Replace multi-display
   Cellular phone cannot make calls in certain places	Cellular phone cannot make calls in certain places
   Voice on phone is not head, is too quiet or is distorted.	VOICE ON PHONE IS NOT HEAD, IS TOO QUIET OR IS DISTORTED Cellular phone voice circuit (multi-display - navigation ECU) Replace navigation ECU Replace multi-display
   Own voice cannot be is heard, too quiet is distorted	Own voice cannot be is heard, too quiet is distorted