NAVIGATION SYSTEM(for DVD)

CAUTION / NOTICE / HINT

PROCEDURE

1. VEHICLE BROUGHT TO WORKSHOP

   Result

   Result
   NEXT

   NEXT

2. INSPECT BATTERY VOLTAGE

   Standard voltage

   11 to 14 V

   If the voltage is below 11 V, recharge or replace the battery before proceeding.

   Result

   Result
   NEXT

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3. BASIC INSPECTION

   1. Turn the engine switch on (ACC).

   2. Check whether or not the display appears on the display and navigation module display.

      Result

      Result	Proceed to
      Display appears	A
      Display does not appear	B

   B

   DIAGNOSTIC TROUBLE CODE CHARTClick here

   A

4. CHECK CAN COMMUNICATION SYSTEM*

   1. Use the intelligent tester to check if the CAN communication system is functioning normally.

      Result

      Result	Proceed to
      CAN DTC is not output	A
      CAN DTC is output	B

   B

   GO TO CAN COMMUNICATION SYSTEM

   Click here

   A

5. CHECK FOR DTC*

   1. Check for DTCs and note any codes that are output.

   2. Clear the DTCs.

   3. Check for DTCs. Based on the DTCs output in the first step, try to force output of the navigation system DTCs by simulating the conditions indicated by the DTCs.

      Tip:

      • Even if the malfunction symptom is not confirmed, check for DTCs as the system stores past DTCs.

      • Refer to the detailed description on the diagnostic screen as necessary.

        Click here

      • Check and clear past diagnostic trouble codes. Check the diagnostic trouble code and inspect the area the code indicates.

        Click here

      Result

      Result	Proceed to
      DTC is output	A
      DTC is not output	B

   B

   PROBLEM SYMPTOMS TABLEClick here

   A

6. DIAGNOSTIC TROUBLE CODE CHART

   1. Find the output code in Diagnostic Trouble Code Chart.

      Click here

      Note:

      The navigation system outputs DTCs for the following systems. When DTCs other than those in Diagnostic Trouble Code Chart for the navigation system are output, refer to Diagnostic Trouble Code Chart for the appropriate system.

      • Audio and visual system (w/ Multi-display)

        Click here

      • Rear seat entertainment system (w/ Rear Seat Entertainment System)

        Click here

      • LEXUS parking assist-sensor system

        Click here

      • Side monitor system (w/ Parking Assist Monitor System)

        Click here

      • Wide view front monitor system

        Click here

      • Parking Assist Monitor System

        Click here

      Result

      Result	Proceed to
      DTCs for navigation system are output	A
      DTCs for audio and visual system (w/ Multi-display) are output	B
      DTCs for rear seat entertainment system (w/ Rear Seat Entertainment System) are output	C
      DTCs for side monitor system (w/ Parking Assist Monitor System) are output	D
      DTCs for LEXUS parking assist-sensor system are output	E
      DTCs for parking assist monitor system are output	F
      DTCs for wide view front monitor system are output	G

   A

   GO TO DIAGNOSTIC TROUBLE CODE CHART

   Click here

   B

   GO TO AUDIO AND VISUAL SYSTEM (w/ Navigation System)

   Click here

   C

   GO TO REAR SEAT ENTERTAINMENT SYSTEM

   Click here

   D

   GO TO SIDE MONITOR SYSTEM (w/ Parking Assist Monitor System)

   Click here

   E

   GO TO LEXUS PARKING ASSIST-SENSOR SYSTEM

   Click here

   F

   GO TO PARKING ASSIST MONITOR SYSTEM

   Click here

   G

   GO TO WIDE VIEW FRONT MONITOR SYSTEM

   Click here

7. PROBLEM SYMPTOMS TABLE

   1. Refer to Problem Symptoms Table.

      Click here

      Result

      Result	Proceed to
      Fault is not listed in problem symptoms table	A
      Fault is listed in problem symptoms table	B

      Tip:

      If the symptom does not recur and no DTC is output, perform the symptom simulation method.

      Click here

   B

   CHECK CIRCUITClick here

   A

8. OVERALL ANALYSIS AND TROUBLESHOOTING

   1. Terminals of ECU.

      Click here

   2. Inspect the steering pad switch assembly.

      Click here

      Result

      Result
      NEXT

   NEXT

9. CHECK CIRCUIT

   1. Adjust, repair or replace as necessary.

      Result

      Result
      NEXT

   NEXT

10. RECHECK FOR DIAGNOSTIC TROUBLE CODE

    Tip:

    After clearing DTCs, recheck for DTCs.

    Result

    Result
    NEXT

    NEXT

11. PERFORM CONFIRMATION TEST

    Result

    Result
    NEXT

    NEXT

    END