Test D: Navigation System Does Not Operate Correctly - The Voice Guidance Is Inoperative/Does Not Operate Correctly

PINPOINT TEST D: NAVIGATION SYSTEM DOES NOT OPERATE CORRECTLY - THE VOICE GUIDANCE IS INOPERATIVE/DOES NOT OPERATE CORRECTLY

D1-D2:

D2-D3:

D4-D5:

D5 Continued:

D6-D8:

D8-D9:

Normal Operation
The navigation module provides voice-assisted route guidance to the audio unit through the audio circuits 1530 (LB) and 1531 (LG). The volume of the voice guidance is controlled by the audio unit.

Possible Causes
- circuit 1530 (LB) open, short to ground, or short to voltage
- circuit 1531 (LG) open, short to ground, or short to voltage
- audio unit
- navigation module