How to Proceed With Troubleshooting
NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING
HINT
Use the following procedure to troubleshoot the navigation system.
1. VEHICLE BROUGHT TO WORKSHOP
NEXT -- Continue to next step.
2. INSPECT BATTERY VOLTAGE
(a) Inspect the battery voltage.
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 -- Continue to next step.
3. DIAGNOSTIC QUESTIONING AND SYMPTOM CONFIRMATION
(a) Ask the customer about symptoms and confirm malfunctions.
Result:
B -- Go to step 9
A -- Continue to next step.
4. OPERATION CHECK
(a) Refer to Check System Normal Condition Operation Check.
Result:
B -- SYMPTOM IS NORMAL OPERATION
A -- Continue to next step.
5. CHECK FOR DTC
(a) Refer to DTC Check/Clear Reading and Clearing Diagnostic Trouble Codes.
Result:
B -- Go to step 9
A -- Continue to next step.
6. DTC CLEAR
(a) Clear the DTCs and finish the diagnostic mode.
HINT
The current DTCs may not indicate actual malfunctions depending on the vehicle operating conditions.
NEXT -- Continue to next step.
7. RECHECK FOR DTC
Result:
HINT
* Even if the malfunction symptom is not confirmed, check for diagnostic trouble codes. This is because the system stores history diagnostic trouble codes.
* Refer to the detailed description on the diagnostic screen as necessary Description and Operation.
* Check the DTCs and inspect the area that the code indicates.
B -- Go to step 9
A -- Continue to next step.
8. DIAGNOSTIC TROUBLE CODE CHART
(a) Find the output code in Diagnostic Trouble Code Chart Navigation System.
NEXT -- Go to step 11
9. PROBLEM SYMPTOMS TABLE
(a) Refer to Problem Symptoms Table Symptom Related Diagnostic Procedures.
Result:
HINT
If the symptom does not recur and no DTC is output, attempt to reproduce the symptoms How To Proceed With Troubleshooting.
B -- Go to step 11
A -- Continue to next step.
10. PERFORM TROUBLESHOOTING BASED ON MALFUNCTION SYMPTOM
(a) Refer to Terminals of ECU Pinout Values and Diagnostic Parameters.
NEXT -- Continue to next step.
11. CHECK THE CIRCUIT
(a) Adjust, repair or replace as necessary.
NEXT -- Continue to next step.
12. RECHECK FOR DIAGNOSTIC TROUBLE CODE
HINT
After clearing the DTCs, recheck for DTCs.
NEXT -- Continue to next step.
13. PERFORM CONFIRMATION TEST
NEXT -- END