Diagnostic Strategies

N 2-A NAVIGATION ECU
5-GROUND : Always approx. 12 Volts
13-GROUND : Approx. 12 Volts with ignition SW at ACC or ON position
8-GROUND : Always continuity

M 3-A MULTI-DISPLAY
6-GROUND : Always approx. 12 Volts
16-GROUND : Approx. 12 Volts with ignition SW at ACC or ON position
1-GROUND : Always continuity