Gmc sierra radio no sound

No sound..radio,door chime, nothing..

Just ran across this TSB.. Probably doesn't apply but worth mentioning for future readers that run across this thread and may still help others:

TSB #08-08-44-031A - No Audio from Radio, Door Ajar Chime and Turn Signal Click Clack Inoperative During Key Cycle - Audio Returns After Vehicle is Turned Off for Several Minutes (Reprogram Audio Amplifier) - (Mar 24, 2009)

Subject: No Audio from Radio, Door Ajar Chime and Turn Signal Click Clack Inoperative During a Key Cycle -- Audio Returns After Vehicle is Turned Off For Several Minutes (Reprogram Audio Amplifier)

Models:
2008-2009 Cadillac CTS, Escalade Models, SRX
2009 Chevrolet Avalanche, Tahoe, Suburban LTZ
2008-2009 GMC Sierra Denali, Yukon Denali Models
2009 GMC Yukon, Yukon XL
2008-2009 HUMMER H2 Models with Luxury Edition Package (RPO Y91) or Premium Audio Speaker System with Surround Amplifier (RPO UQS)

Attention: This bulletin only applies to vehicles with amplifier part numbers 25921142, 25924299, 25926541, 25939528 and 25939529.

This bulletin is being revised to update models, model years and the service procedure. Please discard Corporate Bulletin Number 08-08-44-031 (Section 08 -- Body and Accessories).

Condition:

Some customers may comment on the following concerns during a key cycle. The audio returns after the vehicle is turned off for several minutes (10 minutes or more). This allows the amplifier to shut down completely and reset.
? No audio from the radio.
? Door ajar chime inoperative.
? Turn signal click clack sound inoperative.

Cause:

These conditions may be caused by a software anomaly.

Correction:

Do This: Reprogram the audio amplifier with the latest software available on TIS2WEB.
Don't Do This: Do not replace the audio amplifier or radio for these conditions.

A revised calibration has been developed to address these conditions. Technicians are to reprogram the audio amplifier using TIS2WEB and selecting "Amplifier Software Update (RPO STZ or Y91 only)". Refer to the Audio Amplifier Programming and Setup procedure in SI for more information. As always, make sure your Tech 2? is updated with the latest software version.



 

Sours: https://www.chevyavalanchefanclub.com/cafcna/index.php?threads/no-sound-radio-door-chime-nothing.93020/
Hi,

If the radio is on, then my first suspect is either a fuse to the amp or the amp has failed. Take a look through these directions for replacing the amp. Locate it in your vehicle and confirm nothing is disconnected or damaged. Also, make sure there is power to it.

If you look at the last pic below, it shows the fuse box under the hood. I highlighted the amp fuse. It is a 30 amp fuse.

Here are a few links you may find helpful:

https://www.2carpros.com/articles/how-a-car-fuse-works

https://www.2carpros.com/articles/how-to-check-a-car-fuse

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-use-a-voltmeter

_________________________________________________

2004 GMC Truck Yukon/Denali 2WD V8-5.3L VIN T
Amplifier Replacement
Vehicle Accessories and Optional Equipment Radio, Stereo, and Compact Disc Amplifier Service and Repair Procedures Amplifier Replacement
AMPLIFIER REPLACEMENT
AMPLIFIER REPLACEMENT

REMOVAL PROCEDURE

pic 1

1. If equipped with a Bose(TM) amplifier, remove the radio amp fuse located under the hood electrical center.
2. Remove the floor console bezel.
3. Remove the cupholder.
4. Remove the bolts (1) retaining the console to the instrument panel (I/P).
5. Remove the console storage bin.
6. Remove the center console end panel.
7. Disconnect the audio amplifier electrical connectors.

pic 2

8. Remove the 4 screws retaining the upper console bracket to the lower console bracket. The front 2 screws (1) are shown in the graphic.

pic 3

9. Move both front seats to the fully forward.
10. Reposition the inboard seat track trim (1) in order to gain access to the rear console side panel screw (2).
11. Remove both rear console side panel screws.

pic 4

12. Move both front seats to the fully rearward.
13. Remove both front console side panel screws (1).

pic 5

14. Disconnect the floor console electrical connector.
15. Remove the console assembly from the vehicle.
16. Remove the audio amplifier screws (1).
17. Remove the audio amplifier from the vehicle.

INSTALLATION PROCEDURE

pic 6

1. Install the audio amplifier to the floor console lower bracket.

NOTE: Refer to Fastener Notice in Service Precautions.

2. Install the amplifier screws.

Tighten the screws to 3.4 N.m (30 lb in).

pic 7

3. Install the floor console.
4. Connect the floor console electrical connector.
5. Install the screws (1) that retaining the upper console bracket to the lower console bracket.

Tighten the retaining screws to 2 N.m (18 lb in).

pic 8

6. Install the bolts (1) retaining the console to the I/P.

Tighten the bolts to 4 N.m (35 lb in).

pic 9

7. Install both front console side panel screws (1).

Tighten the screws to 2 N.m (18 lb in).

pic 10

8. Move both front seats to the fully forward.
9. Install both rear console side panel screws (2).

Tighten the retaining screws to 2 N.m (18 lb in).

10. Reposition the inboard seat track trim (1).
11. Connect the audio amplifier electrical connectors.
12. Connect the floor console electrical connector.
13. Install the center console end panel.
14. Install the console storage bin.
15. Install the cupholder to the console.
16. Install the upper console bezel.
17. Install the radio amp fuse.
18. If the amplifier has been replaced, perform the audio amplifier set up procedure for the BOSE(TM) amplifier with UQ7 and Y91. Refer to Audio Amplifier Setup.

______________________________________

Let me know what you find or if this helps.

Take care,
Joe

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Wednesday, December 11th, 2019 AT 7:40 PM

Sours: https://www.2carpros.com/questions/no-sound-out-my-speakers
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I have no sound, from the radio, the turn signals, the door chimes or the lights left on sounds

GM often claims not to know what the answer is, but they do. There are so many Saturn Outlooks (mine is an 09 XR), GMC Acadias, Chevrolet Traverses, and Buick Enclaves (all GM vehicles with exactly the same Lambda platform) that have this problem and every forum that you go to for each of these vehicles has tons of complaints (probably the similar Cadillac platform as well). These are the causes that I found after several different mechanics, a great deal of research and trial and error. Water in the speaker (accessory) connectors in the door jam. Why? because in both cases, the sunroofs (double sunroof) have drain tubes that run down through the door stanchions. If you open your speaker wire connectors and have water that drains from the front door speaker wire, it is likely that the drain orifice is blocked (it drains beneath the car, right where the stanchion connects to the lower part of body, in front of the front door and beneath the car). The front drain tubes can also drain inside the car at the firewall. This can short out the amp and flood the carpet (This one can also come from a clogged A/C condenser drain so check that too). If you open your speaker wires and have water that drains from the rear door speaker wire, it is also likely that the drain orifice is blocked (it drains beneath the car, right where the stanchion connects to the lower part of body, in front of the rear door and beneath the car). If the tube is only plugged and not leaking or disconnected in the stanchions, you can crawl under the car and unplug them yourself. If you wish to inspect the entire tube from top to bottom, all of these drain tubes run down through the stanchions and to actually get to them to make sure that you don't have a leaky tube or leaky joint in the tube, you need to remove the cladding that covers the stanchion, which is on the inside of the car. Some have experienced flooding of the interior roof cladding, so in this case, you will need to remove the headliner and check tube where it connects to the sunroofs, both front and back. I suspect that the water enters the speaker wire housing from inside the stanchion and is not a problem of a faulty speaker wire connector inside the door jam as these are very well built and have a lock down silicon rubber seal. I silicone greased mine and I'm almost certain that the leak travels down the speaker wire from the inside the stanchion and enters the connector through the inside of the stanchion and from behind where the connector connects to the stanchion (some people put RTV sealant where the connector meets the stanchion in the door jam. I don't think this is the cause, but it cannot hurt.). Symptoms are: failing speakers, sporadic failure as well, failing amplifier, failing BCM (body control module that controls all interior electronics), super high battery drain and eventually failed battery, and possibly failing radio. Local GM dealer quoted me, "At least $1200.00 to trouble shoot and repair, if we find the problem right away, and it is only one item that is affected". I've seen claims in forums of those whose local GM dealer will supposedly clean and check the drain tube orifices for about $150.00. You may as well YouTube it and get a long, skinny screwdriver or wire or small skinny brush, and unplug them yourselves. All of these issues can be related. If it affects your BCM, it can cause failure of just about any part of your internal electrical and lighting systems. BCM is located near the amplifier, in driver compartment, underneath and forward of steering column. GM should recall it, but a class action lawsuit should be in order from Lambda platform owners first. Good luck everyone, as soon as I finish fixing mine, I'm trading or selling it.

32 people found this helpful.

Mark helpful

Sours: https://www.cargurus.com/Cars/Discussion-t24939_ds656313

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