Test B

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

Test B1-B2:

Test B3-B6:

Test B6-B7:

Normal Operation
The audio unit is 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 or audio amplifier (if equipped), producing sound.

Possible Causes
- central junction box (CJB) fuse(s):
- 2 (5A)
- 18 (20A)
- 27 (10A)
- circuit 10-MD15 (GY/OG) open or short to ground (navigation audio unit)
- circuit 29-MD15 (OG/BK) open or short to ground
- circuit 31-MD15A, (BK/GN) open
- circuit 50-MD15 (GY/OG) short to power
- circuit 75-MD15 (YE/GN) open or short to ground
- audio unit