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Display Function

PROBLEM SYMPTOMS TABLE - DISPLAY FUNCTION

Symptom Verification
Black screen (No image appears on navigation/audio screen).
  1. "BLACK SCREEN (NO IMAGE APPEARS ON NAVIGATION AND AUDIO SCREEN)"
  2. Dimmer signal circuit
  3. Power source circuit (multi-display)
  4. Replace multi-display
Illumination for panel switch does not come on with TAIL switch on.
  1. "ILLUMINATION FOR PANEL SWITCH DOES NOT COME ON WITH TAIL SWITCH ON"
  2. Illumination circuit
  3. Replace multi-display
Display does not dim (Night Screen) with TAIL switch on.
  1. "DISPLAY DOES NOT DIM (NIGHT SCREEN) WITH TAIL SWITCH ON"
  2. Dimmer signal circuit
  3. Replace multi-display
Power does not turn off (Screen remains on).
  1. Power source circuit (multi-display)
  2. Replace multi-display
Panel switch does not function.
  1. "PANEL SWITCH DOES NOT FUNCTION"
  2. Steering pad switch circuit
  3. Power source circuit (multi-display)
  4. Replace multi-display
Touch panel switch does not function.
  1. "TOUCH PANEL SWITCH DOES NOT FUNCTION"
  2. Steering pad switch circuit
  3. Power source circuit (multi-display)
  4. Replace multi-display
Navigation screen is not displayed.
  1. Display signal circuit (navigation ECU - multi-display)(1)
  2. Display signal circuit (navigation ECU - multi-display controller sub-assy) ((3) or (4))
  3. Display signal circuit (navigation ECU - television camera ECU) ((2))
  4. Display signal circuit (multi-display controller sub-assy - television camera ECU) (M)
  5. Display signal circuit (television camera ECU - multi-display) ((2) or (4))
  6. Display signal circuit (multi-display controller sub-assy - multi-display) ((3))
  7. Replace multi-display
Screen flicker or color distortion.
  1. "SCREEN FLICKER OR COLOR DISTORTION"
  2. Display signal circuit (navigation ECU - multi-display) (1))
  3. Display signal circuit (navigation ECU - multi-display controller sub-assy) ((3) or (4))
  4. Display signal circuit (navigation ECU - television camera ECU) ((2))
  5. Display signal circuit (multi-display controller sub-assy - television camera ECU) (M)
  6. Display signal circuit (television camera ECU - multi-display) ((2) or (4))
  7. Display signal circuit (multi-display controller sub-assy - multi-display) ((3))
  8. Replace multi-display
  9. Replace navigation ECU
Navigation function switches can be operated while vehicle is running.
  1. Speed signal circuit (multi-display - combination meter assy)
DVD image cannot be displayed on front screen. (Parking brake is on.) ((3) or (4))
  1. Display signal circuit (from multi-display controller sub-assy)
  2. Parking brake switch circuit
  3. Replace multi-display
(1) w/o Rear Seat Entertainment and Back Monitor Systems

(2) w/o Rear Seat Entertainment System (w/Back Monitor System only)

(3) *3: w/Rear Seat Entertainment System only (w/o Back Monitor System)

(4) *4: w/Rear Seat Entertainment and Back Monitor Systems
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