Test I

PINPOINT TEST I: NAVIGATION SYSTEM DOES NOT OPERATE CORRECTLY - UNABLE TO INSERT OR EJECT MAP DISC

Test I1-I2:

Test I3:

Normal Operation
The navigation map disc is contained in the navigation system module. The accessory/delay relay supplies voltage to the navigation system module through circuit 1002 (BK/PK). Circuit 1205 (BK) provides the navigation system module ground.

Possible Causes
- circuit 1002 (BK/PK) open or shorted
- circuit 1205 (BK) open
- navigation system module