No Navigation Screen Displayed when MAP or DEST Switch Pressed
- CHECK NAVIGATION ECU (SERVICE CHECK MODE)
- Enter the System Check Mode (See DTC CHECK / CLEAR ).
- Check the navigation ECU.
Result:
RESULT REFERENCEResult Proceed to "NG" is displayed A "OK" is displayed B "NCON" is displayed C A: TROUBLESHOOT FOR EACH DIAGNOSIS
B: REPLACE MULTI-DISPLAY
C: Go To Next Step
- CHECK NAVIGATION ECU POWER SOURCE CIRCUIT
- Check the navigation ECU power source circuit (see NAVIGATION ECU POWER SOURCE CIRCUIT ).
NG: REPAIR OR REPLACE HARNESS AND CONNECTOR
OK: Go To Next Step
- CHECK MULTI-DISPLAY POWER SOURCE CIRCUIT
- Check the multi-display power source circuit (see MULTI-DISPLAY POWER SOURCE CIRCUIT ).
NG: REPAIR OR REPLACE HARNESS AND CONNECTOR
OK: Go To Next Step
- CHECK DISPLAY SIGNAL CIRCUIT
- Check the display signal circuit (see DISPLAY SIGNAL CIRCUIT BETWEEN NAVIGATION ECU AND MULTI-DISPLAY ).
NG: REPAIR OR REPLACE HARNESS AND CONNECTOR
OK: REPLACE MULTI-DISPLAY