Armada 4WD V8-5.6L (VK56DE) Flex Fuel (2009)
1. Connect AV control unit connector M72 and BOSE speaker amp. connector M113.
2. Turn ignition switch to ACC.
3. Push "POWER" switch.
4. Check the signal between AV control unit harness connector M72 terminals with CONSULT-III or oscilloscope.
Is the audio signal voltage reading as specified?
YES - Replace BOSE speaker amp. Refer to See: Amplifier/Service and Repair/Bose Audio Without Navigation.
NO - Replace AV control unit. Refer to See: Radio/Stereo/Service and Repair/AV Control Unit/Bose Audio Without Navigation.
Bose Audio With Navigation
REAR TWEETER
Description
The AV control unit sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the audio signals before sending them to the
rear tweeters using the audio signal circuits.
REAR TWEETER
Diagnosis Procedure
1.HARNESS CHECK