Speaker Test/Replacement: Subwoofer

Remove the rear shelf (see TRIM REMOVAL/INSTALLATION - REAR SHELF AREA ).
Remove the four mounting bolts from the subwoofer (A).

Fig 1: Identifying Four Mounting Bolts From Subwoofer
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Disconnect the 2P connector (B), and remove the subwoofer.
Measure the resistance between the No. 1 and No. 2 terminals. There should be about 2 Ω.
If the resistance is not as specified, replace the subwoofer.