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

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 receiver assembly and the Extension Module. (Refer to optional equipment's manuals)


  1. VEHICLE BROUGHT TO WORKSHOP


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  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.


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  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
      A

  4. CHECK FOR DTC


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

    2. Clear the DTCs.

    3. Recheck for DTCs by simulating the operation indicated by the DTCs.

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

      B

      Go to DIAGNOSTIC TROUBLE CODE CHART Click here

      A

  5. 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 7
      A

  6. OVERALL ANALYSIS AND TROUBLESHOOTING


    1. Terminals of ECU Click here.


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  7. ADJUST, REPAIR OR REPLACE


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  8. RECHECK FOR DIAGNOSTIC TROUBLE CODE

    Tech Tips

    After clearing DTCs, recheck for DTCs Click here.


    NEXT

  9. PERFORM CONFIRMATION TEST


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    END