Navigation system will not accept security code
Navigation system will not accept security codeNOTE:
- The system will not operate without the 4-digit security (anti-theft) code. Follow the this procedure.
(After 10 consecutive tries, you must cycle the key to continue trying)
- The "Navigation System Diagnosis and Core Return Form" is available on ISIS, under "Job aids" and can be printed out for recording this information. This information will help the reman facility determine what caused the failure.
1. Check the display panel operation by selecting various menu options on the display.
Does the navigation system respond to touch?
YES - Go to step 2.
NO - Do the display panel control unit buttons or touch screen buttons do not work or respond properly troubleshooting.
2. Go into the Diagnostic mode and use the "Navi ECU" under the "Unit Check" diagnosis. A brief diagnostic will run for 20 seconds, and the serial number is then displayed.
Is the serial number displayed?
YES - Go to step 5.
NO - Go to step 3.
3. Remove the navigation unit.
4. Check the serial number on the label of the underside of the navigation unit.
Is the serial number confirmed on the underside of the navigation unit?
YES - Go to step 5.
NO - Replace the navigation unit.
5. Using the serial Number, look up the navigation security code in the Interactive Network, (click: Service, Vehicle Information, Anti-Theft code Inquiry, and then select "Navigation" from the "product" dropdown box). Enter the serial number.
Is a 4-digit code displayed on the screen?
YES - Go to step 6.
NO - Call the Warranty Department, the telephone number is listed in the POI/TQI bulletin, to obtain the code. Then go to step 6.
6. Check that the obtained code works to bypass the code screen in the navigation system.
Does the code work?
YES - The system is OK at this time. Return the car to the client and give them the anti-theft code.
NO - Go to step 7.
7. Try entering four zeros (0000) in place for the code. Do the four zeros work to bypass the code screen?
YES - Replace the control unit, and enter in the "problem description field" of the core return form: "Security code is 0000."
NO - Replace the control unit, and enter in the "problem description field" of the core return form: "Won't take security code" (as proof, enclose the sticker that contains the Serial number and the Code).