MDX V6-3471cc 3.5L (2002)
9. Measure the voltage at the No.1 terminal of the alternator 4P connector with the ignition switch ON (II).
Is there battery voltage?
YES - Go to Alternator and Regulator Circuit Test.
NO - Repair open in the BLK/YEL wire between the alternator and the driver's under-dash fuse relay box.