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.
* *: Use the Techstream tester.
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 to the next step.
NEXT -- Continue to next step.
3. DIAGNOSTIC QUESTIONING AND SYMPTOM CONFIRMATION
(a) Ask the customer about symptoms and confirm malfunctions.
B -- GO TO STEP 6
A -- Continue to next step.
4. OPERATION CHECK
(a) Refer to Check System Normal Condition Operation Check.
B -- SYMPTOM IS NORMAL OPERATION
A -- Continue to next step.
5. CHECK CAN COMMUNICATION SYSTEM*
(a) Check for DTC output Problem Symptoms Table.
B -- GO TO CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting
A -- Continue to next step.
6. CHECK FOR DTC*
(a) Refer to DTC Check/Clear Reading and Clearing Diagnostic Trouble Codes.
HINT
If more information is needed, perform a check using the "System Check Mode" screen after checking for DTC's using the Intelligent tester.
B -- Go to step 10
A -- Continue to next step.
7. DTC CLEAR*
(a) Refer to DTC Check/Clear Reading and Clearing Diagnostic Trouble Codes.
HINT
The current DTC's may not indicate actual malfunctions depending on the vehicle operating conditions.
NEXT -- Continue to next step.
8. RECHECK FOR DTC*
(a) Refer to DTC Check/Clear Reading and Clearing Diagnostic Trouble Codes.
HINT
* Even if the malfunction symptom is not confirmed, check for DTC's. This is because the system stores history DTC's.
* If more information is needed, perform a recheck using the "System Check Mode" screen after rechecking for DTC's using the Intelligent tester.
* Check for DTC's and inspect the area code indicates.
B -- Go to step 10
A -- Continue to next step.
9. DIAGNOSTIC TROUBLE CODE CHART
(a) Find the output code in Diagnostic Trouble Code Chart Navigation System.
NOTICE:
* The navigation system outputs DTC's for the following systems.
* When DTC's other than those in Diagnostic Trouble Code Chart for the navigation system are output, refer to Diagnostic Trouble Code Chart for the system.
* Audio and visual system (w/ navigation system) Audio and Visual System (w/ Navigation System)
* Rear seat entertainment system (w/ rear seat entertainment system) Reading and Clearing Diagnostic Trouble Codes
* Wide view front monitor system (w/ wide view front monitor system) Wide View Front Monitor System
* Side monitor system (w/ Side monitor system) Side Monitor System
A -- Go to step 13
B -- GO TO AUDIO AND VISUAL SYSTEM (w/ Navigation System) Audio and Visual System (w/ Navigation System)
C -- GO TO REAR SEAT ENTERTAINMENT SYSTEM Rear Seat Entertainment System
D -- GO TO WIDE VIEW FRONT MONITOR SYSTEM Wide View Front Monitor System
E -- GO TO SIDE MONITOR SYSTEM Side Monitor System
10. CHECK HARD DISK DRIVE
(a) Enter the "Failure Diagnosis" screen. Refer to Check Hard Disk Drive in Operation Check Operation Check.
OK:
"OK" is displayed.
NG -- REPLACE HARD DISK DRIVE Removal.
OK -- Continue to next step.
11. PROBLEM SYMPTOMS TABLE
(a) Refer to Problem Symptoms Table Problem Symptoms Table.
HINT
If the symptom does not recur and no DTC is output, perform the symptom reproduction method How To Proceed With Troubleshooting.
B -- Go to step 13
A -- Continue to next step.
12. CHECK ECU TERMINAL ARRANGEMENT BASED ON MALFUNCTION SYMPTOM
(a) Refer to Terminals of ECU Pinout Values and Diagnostic Parameters.
NEXT -- Continue to next step.
13. CHECK CIRCUIT
(a) Adjust, repair or replace as necessary.
NEXT -- Continue to next step.
14. RECHECK FOR DIAGNOSTIC TROUBLE CODE
HINT
After clearing DTC's, recheck for DTC's.
NEXT -- Continue to next step.
15. PERFORM CONFIRMATION TEST
NEXT -- END