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Super Mechanic
Super Mechanic, Master technician
Category: Chevy
Satisfied Customers: 17159
Experience:  29 yrs. exp., ASE master, cert. in G.M. electrical, a/c, susspension, brakes, electronic steering
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MY SPEAKERS ON MY 07 SILVERADO GO..WIRING..PARKING BRAKE..ON.

Customer Question

MY SPEAKERS ON MY 07 SILVERADO GO ON AND OFF AS IF A WIRE OR SOMETHING IS LOOSE . I MOVED THE WIRING BY MY PARKING BRAKE AND THE WENT ON. OR WHEN I`M DRIVING,THEY SUDDENLY GO ON. SOMETIMES MY A/C GOES OUT. WHAT COULD BE THE PROBLEM. THANK YOU
Submitted: 6 years ago.
Category: Chevy
Expert:  Super Mechanic replied 6 years ago.

Hello and welcome to Just answer.com, Super mechanic here. About your vehicle.

There has been a service bulletin for that type of concern. Here is what it states.

Instruments/Audio - No Speaker Audio/Warning Chimes

Bulletin No.: 07-08-44-008

Date: April 18, 2007

TECHNICAL

 

Subject:
No Audio/No Sound Heard from Radio Speakers, Turn Signals, Hazard Signals and No Warning Chimes When a Door or Liftgate is Opened (Inspect/Seat C2 Audio Amplifier Connector) Models:

2007 Cadillac Escalade, Escalade ESV, Escalade EXT
2007 Chevrolet Avalanche, Silverado, Suburban, Tahoe
2007 GMC Sierra, Yukon, Yukon XL, Yukon Denali, Yukon Denali XL

with Speakers, Premium Audio w/Amplifier or Rear Stereo Audio (RPOs UQA, UQS or UK6)

 

Condition

Some customers may comment on one or all of the following conditions related to no audio/no sound:

No sound from one or more of the radio speakers.

No blinking sound heard form the turn signals or hazard signals when on.

No audio warning chimes heard when a door or liftgate is opened.

 

Cause

The C2 Audio Amplifier Connector may become unseated at the amplifier.

 

Correction

Inspect/Seat the C2 Audio Amplifier Connector (16-way, Black Connector).

Remove the radio, amplifier, and SIR fuses located in the Underhood Bussed Electrical Center (BEC).

 

 

 

graphic

 

Gain access to the radio speaker amplifier. Refer to Radio Speaker Amplifier Replacement in SI.


graphic


Visually inspect and pull on the C2 Audio Amplifier Connector (1).

If the connector is properly seated, then refer to SI for further diagnosis based on the customers condition.

If the connector is loose, then reinstall the C2 Audio Amplifier Connector.

Verify the connector is seated and locked into place.

Install the fuses.

Verify the condition has been fixed and clear any DTCs.

If securing the connector does not correct the condition, refer to SI for further diagnosis and repair.

Install the radio speaker amplifier assembly and any other components removed to gain access to the amplifier. Refer to Radio Speaker Amplifier Replacement in SI.



 

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