F 350 4WD Super Duty V8-6.4L DSL Turbo (2008)
Speaker: Testing and Inspection
SPEAKER WALK-AROUND TEST
NOTE: To enter the speaker walk-around test or ACM self-diagnostic mode, the audio system must be on and in radio tuner (AM/FM) mode.
1. To enter the speaker walk-around test, simultaneously press the ACM preset buttons 3 and 6.
2. The speaker walk-around test stops at each speaker and applies sound to each speaker for about 1 to 2 seconds. Each speaker is tested and
displayed on the ACM as follows (not necessarily in this order): RF, LF, LR, RR, SUBWOOFER.
3. To exit the speaker walk-around test, turn the key to OFF, turn the audio system off, or press preset button 1 for diagnostics (ACMs without
navigation), or press "End Test" (navigation ACM).
