Test C: Navigation System Does Not Operate Correctly - The Position Cursor Is Inoperative

PINPOINT TEST C: NAVIGATION SYSTEM DOES NOT OPERATE CORRECTLY - THE POSITION CURSOR IS INOPERATIVE

C1-C3:

C3-C4:

C5:

C5-C6:

C6 Continued:

C6-C8:

C9:

Normal Operation
The anti-lock brake system (ABS) module supplies the vehicle speed signal (VSS) to the navigation system module through circuit 8-CF63 (WH/GN). The navigation system uses the VSS signal and the global positioning system (GPS) antenna to establish vehicle speed and position.

Possible Causes
- circuit 8-CF63 (WH/GN) open, short to ground or short to voltage
- GPS antenna
- audio unit
- navigation system module
- anti-lock brake system (ABS) module