How To Proceed With Troubleshooting

NAVIGATION: Navigation System (for DVD): HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use these procedures to troubleshoot the navigation system.
* The Technicians should be used in step 4.
1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK

NEXT -- Continue to next step.

3. INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

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

NEXT -- Continue to next step.

4. INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN)

(a) Using the Technicians to check if the Multiplex Communication System (MPX) is functioning normally.





B -- Go to MULTIPLEX COMMUNICATION SYSTEM
A -- Continue to next step.

5. BASIC INSPECTION

(a) Turn the ignition switch to ACC.

(b) Check whether or not the multi-display turns on.





B -- Go to step 7
A -- Continue to next step.

6. CHECK FOR DTC

(a) Check for DTCs and note any codes that are output.

(b) Delete the DTC.

(c) Recheck for DTCs. Based on the DTC output in (a), try to force output of the navigation system DTC by simulating the operation indicated by the DTC.

HINT
* If the system cannot enter the diagnosis mode, inspect each AVC-LAN communication signal and repair or replace problem parts.
* Even if the malfunction symptom is not confirmed, check the DTCs. This is because the system stores past DTCs.
* Refer to the detailed description on the diagnostic screen as necessary Navigation System (for DVD).
* Check the clear the past diagnostic trouble code. Check the diagnostic trouble code and inspect the area the code indicates.






B -- Go to step 8
A -- Continue to next step.

7. PROBLEM SYMPTOMS TABLE





B -- Go to step 9
A -- Continue to next step.

8. OVERALL ANALYSIS AND TROUBLESHOOTING

(a) Terminals of ECU Navigation System (for DVD)

NEXT -- Continue to next step.

9. ADJUST, REPAIR OR REPLACE

NEXT -- END