How To Proceed With Troubleshooting

NEXT: Go to next step 

1. Ask the customer about symptoms and confirm malfunctions.

   → THE SCREEN DISPLAYS NOTHING (GO TO STEP   8 , AND PROCEED TO "BLACK SCREEN") 

   → OTHER SYMPTOMS (GO TO STEP   3 ) 

→ APPLICABLE (THIS IS NOT A MALFUNCTION) 

→ NOT APPLICABLE (GO TO STEP   4 ) 

HINT: 

If the system cannot enter diagnostic mode, replace the navigation receiver assembly.

→ A CODE IS OUTPUT (GO TO STEP   5 ) 

→ A CODE IS NOT OUTPUT (GO TO STEP   8 ) 

1. Clear the DTCs and finish diagnostic mode.

   HINT: 

   The currently output DTCs may not indicate actual malfunctions depending on the vehicle condition.

   NEXT: Go to next step 

HINT: 

• Even if the malfunction symptom is not confirmed, check for diagnostic trouble codes. This is because the system stores past diagnostic trouble codes.
• Refer to the detailed description on the diagnostic screen as necessary. Refer to SYSTEM DESCRIPTION .
• Check the diagnostic trouble code and inspect the area the code indicates.

→ A CODE IS OUTPUT (GO TO STEP   7 ) 

→ A CODE IS NOT OUTPUT (GO TO STEP   8 ) 

1. Find the output code in DIAGNOSTIC TROUBLE CODE CHART .

   NEXT → GO TO STEP   10 

1. Find the applicable symptom in PROBLEM SYMPTOMS TABLE .

   HINT: 

   If the symptom does not recur and no code is output, perform the symptom reproduction method. Refer to HOW TO PROCEED WITH TROUBLESHOOTING .

   → THERE IS AN APPLICABLE SYMPTOM IN THE TABLE (GO TO STEP   10 ) 

   → THERE IS NO APPLICABLE SYMPTOM IN THE TABLE (GO TO STEP   9 ) 

NEXT: Go to next step 

1. Adjust, repair, or replace as necessary.

   NEXT: Go to next step 

HINT: 

After clearing the DTCs, recheck for DTCs.

NEXT: Go to next step 

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