How To Proceed With Troubleshooting

NAVIGATION: NAVIGATION SYSTEM (for DVD): HOW TO PROCEED WITH TROUBLESHOOTING

HINT
Use these procedures to troubleshoot the navigation system.

1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. 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.

3. BASIC INSPECTION

(a) Turn the engine switch on (ACC).

(b) Check whether or not the display appears on the display and navigation module display.

Result





B -- Go to step 6
A -- Continue to next step.

4. CHECK FOR DTC

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

(b) Clear the DTCs.

(c) Recheck for DTCs. Based on the DTCs output in the first step, try to force output of the navigation system DTCs by simulating the conditions indicated by the DTCs.

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 for DTCs as the system stores past DTCs.
* Refer to the detailed description on the diagnostic screen as necessary System Description.
* Check and clear past diagnostic trouble codes. Check the diagnostic trouble code and inspect the area the code indicates.

Result





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

5. PROBLEM SYMPTOMS TABLE

Result





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

6. OVERALL ANALYSIS AND TROUBLESHOOTING

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

(b) Inspect the steering pad switch Testing and Inspection.

NEXT -- Continue to next step.

7. ADJUST, REPAIR OR REPLACE

NEXT -- END