Initial Inspection and Diagnostic Overview: Overview

Overview

The information in this section is intended to help with basic diagnosis of the navigation system.

The touch screen display (TSD) and the navigation computer both have built-in diagnostics that allow the technician to diagnose fault conditions. Diagnostic trouble codes (DTCs) can be retrieved using the self-check function on the TSD, the approved diagnostic system or a scan tool.

TSD and navigation computer self tests

The TSD and navigation computer built-in diagnostics provide useful information in allowing navigation and parts information to be displayed as well as allowing manual and self-checks to be carried out. The built-in diagnostics are accessed as follows:
1. Once the system is powered up enter the navigation system using the navigation button located at the base of the screen.
2. Agree to the disclaimer screen.
3. Enter the navigation home menu.
4. Press and hold the TSD in the center at the top.
5. A 'Diag PIN Entry' box will appear, type in the access code 753.

Once this code has been accepted, the on-screen diagnostics menu will be displayed. The menu has the following options:
^ Navigation information Vehicle signals Global positioning system (GPS) information Reset position
^ Manual check Screen test Microphone input level test Voice output test
^ Parts information Component and software version information
^ Self check Internal check on navigation computer and a display of DTCs on the TSD