Test D

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

Test D1-D2:

Test D3-D4:

Test D5-D6:

Test D7-D9:

Test D9:

Test D9-D10:

Test D10-D11:

Test D12-D15:

Normal Operation
The powertrain control module (PCM) supplies the vehicle speed signal (VSS) to the navigation system module through circuit 679 (GY/BK). The navigation system uses the VSS signal and the GPS antenna to accurately establish vehicle speed and position.

Possible Causes
- circuit 679 (GY/BK) open or shorted to ground
- GPS antenna
- audio unit
- navigation system module