NO.2 CAR-NAVIGATION SYSTEM DOES NOT OPERATION [CAR-NAVIGATION SYSTEM]

id0903e8833500

2 | Even if the map screen is touched, the car-navigation system cannot be operated
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Possible DTC | —
POSSIBLE CAUSE | • Audio unit malfunction (bad LCD panel) • Car-navigation unit malfunction

Diagnostic Procedure

Step | Inspection | Action
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1 | DETERMINE IF MALFUNCTION CAUSE IS AUDIO UNIT LCD PANEL • Turn the ignition switch to the ON position and launch the audio unit diagnostic assist function. (See DIAGNOSTIC ASSIST FUNCTION [AUDIO].) • Select diagnostic assist code 01 display inspection. • Is the display normal? | Yes | Go to the next step.
No | Replace the audio unit. (See AUDIO UNIT REMOVAL/INSTALLATION.)
2 | DETERMINE IF MALFUNCTION CAUSE IS CAR-NAVIGATION UNIT • Select diagnostic assist code 16 external device connection information clearing. • Turn the ignition switch to the OFF position. • Turn the ignition switch to the ON position. • Launch the audio unit diagnostic assist function. (See DIAGNOSTIC ASSIST FUNCTION [AUDIO].) • Select diagnostic assist code 15 vehicle NAVI signal verification. • Is NAVI (USB) NG displayed? | Yes | Replace the car-navigation unit. (See CAR-NAVIGATION UNIT REMOVAL/INSTALLATION.)
No | Replace the audio unit. (See AUDIO UNIT REMOVAL/INSTALLATION.)