AUDIO AND VISUAL SYSTEM(for Radio and Display Type) HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips


  • Use these procedures to troubleshoot the audio and visual system.

  • For vehicles equipped with an Extension Module, check the following contents for the radio and display assembly and the Extension Module. (Refer to optional equipment's manuals)

  • *: Use the intelligent tester.

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

    Result
    Proceed to
    NEXT

    NEXT

  2. INSPECT BATTERY VOLTAGE


    1. Measure the battery voltage with the ignition switch off.

      Standard Voltage
      11 to 14 V

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

      Result
      Proceed to
      NEXT

    NEXT

  3. BASIC INSPECTION


    1. Turn the ignition switch to ON.

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

      Result
      Result Proceed to
      Display appears A
      Display does not appear B

    B

    GO TO STEP 6 Click 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 audio and visual system DTCs by simulating the conditions indicated by the DTCs.

      Tech Tips


      • 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

    GO TO STEP 8 Click here

    A

  6. DIAGNOSTIC TROUBLE CODE CHART


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

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  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

      Tech Tips

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

      Click here


    B

    GO TO STEP 9 Click here

    A

  8. OVERALL ANALYSIS AND TROUBLESHOOTING


    1. Terminals of ECU.

      Click here

    2. Inspect the steering pad switch assembly.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  9. CHECK CIRCUIT


    1. Adjust, repair or replace as necessary.

      Result
      Proceed to
      NEXT

    NEXT

  10. RECHECK FOR DIAGNOSTIC TROUBLE CODE CHART

    Tech Tips

    After clearing DTCs, recheck for DTCs.

    Result
    Proceed to
    NEXT

    NEXT

  11. PERFORM CONFIRMATION TEST

    Result
    Proceed to
    NEXT

    NEXT

    END