How To Proceed With Troubleshooting

HINT: 

• Use the following procedure to troubleshoot the navigation system (for DVD).
• *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP 

   NEXT: Go to next step 

2. INSPECT BATTERY VOLTAGE 
   1. Inspect the battery voltage with the power switch off.

      Standard Voltage

      11 to 14 V

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

      NEXT: Go to next step 

3. DIAGNOSTIC QUESTIONING AND SYMPTOM CONFIRMATION 
   1. Ask the customer about symptoms and confirm malfunctions.

      Result

      Result	Proceed to
      Other symptoms occured.	A
      The screen displays nothing.	B

      B → Go to step 11, AND PROCEED TO "BLACK SCREEN" 

      A: Go to next step 

4. OPERATION CHECK 
   1. Refer to Check System Normal Condition. Refer to OPERATION CHECK .

      Result

      Result	Proceed to
      Symptom is not normal operation.	A
      Symptom is normal operation.	B

      B → SYMPTOM IS NORMAL OPERATION 

      A: Go to next step 

5. CHECK MULTIPLEX COMMUNICATION SYSTEM* 
   1. Check for DTC output. Refer to HOW TO PROCEED WITH TROUBLESHOOTING .

      Result

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

      B → GO TO MULTIPLEX COMMUNICATION SYSTEM 

      A: Go to next step 

6. CHECK CAN COMMUNICATION SYSTEM* 
   1. Check for DTC output. Refer to HOW TO PROCEED WITH TROUBLESHOOTING .

      Result

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

      B → GO TO CAN COMMUNICATION SYSTEM 

      A: Go to next step 

7. CHECK FOR DTC* 
   1. Refer to DTC Check / Clear. Refer to DTC CHECK / CLEAR .

      Result

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

      HINT: 

      If more information is needed, perform a recheck using the "System Check Mode" screen after rechecking for DTCs using the Techstream. Refer to SYSTEM DESCRIPTION .

      B → Go to step 11 

      A: Go to next step 

8. DTC CLEAR* 
   1. Refer to the DTC Check / Clear. Refer to DTC CHECK / CLEAR .

      HINT: 

      The current DTCs may not indicate actual malfunctions depending on the vehicle operating conditions.

      NEXT: Go to next step 

9. RECHECK FOR DTC* 

   Result

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

   HINT: 

   • Even if the malfunction symptom is not confirmed, check for DTCs. This is because the system stores history DTCs.
   • If more information is needed, perform a recheck using the "System Check Mode" screen after rechecking for DTCs using the Techstream. Refer to SYSTEM DESCRIPTION .
   • Check the DTC and inspect the area that the code indicates.

   B → Go to step 11 

   A: Go to next step 

10. DIAGNOSTIC TROUBLE CODE CHART 
    1. Find the output code in Diagnostic Trouble Code Chart. Refer to DIAGNOSTIC TROUBLE CODE CHART .
       NOTE:

       • The electro multi vision system outputs DTCs for the following systems.
       • When DTCs other than those in Diagnostic Trouble Code Chart for the electro multi vision system are output, refer to Diagnostic Trouble Code Chart for the relevant system.
       • Audio and visual system. Refer to DIAGNOSTIC TROUBLE CODE CHART

       Result

       Result	Proceed to
       DTCs for the electro multi vision system are output.	A
       DTCs for the audio and visual system are output.	B

       A → Go to step 13 

       B → GO TO AUDIO AND VISUAL SYSTEM 

11. PROBLEM SYMPTOMS TABLE 
    1. Refer to Problem Symptoms Table. Refer to PROBLEM SYMPTOMS TABLE .

       Result

       Result	Proceed to
       Fault is not listed in Problem Symptoms Table.	A
       Fault is listed in Problem Symptoms Table.	B

       HINT: 

       If the symptom does not recur and no DTC is output, attempt to reproduce the symptoms. Refer to HOW TO PROCEED WITH TROUBLESHOOTING .

       B → Go to step 13 

       A: Go to next step 

12. PERFORM TROUBLESHOOTING BASED ON MALFUNCTION SYMPTOM 
    1. Refer to Terminals of ECU. Refer to TERMINALS OF ECU .

       NEXT: Go to next step 

13. CHECK CIRCUIT 
    1. Adjust, repair or replace as necessary.

       NEXT: Go to next step 

14. RECHECK FOR DIAGNOSTIC TROUBLE CODE 

    HINT: 

    After clearing the DTCs, recheck for DTCs.

    NEXT: Go to next step 

15. PERFORM CONFIRMATION TEST 

    NEXT → END