Test B

PINPOINT TEST B: THE AUDIO UNIT IS INOPERATIVE/DOES NOT OPERATE CORRECTLY

Test B1-B4:

Test B4-B5:

Normal Operation
The audio unit can be powered up when the ignition is in the ON or ACC position. The audio unit will provide audio signals to the speakers, subwoofer amplifier, and center imaging amplifier, thus producing sound.

Possible Causes
- circuit 29-MD15 (OG/BK) open or short to ground
- circuit 91-MD15 (BN/GN) open
- circuit 75-MD15 (YE/GN) open or short to ground
- audio unit