Intermittent Radio and electrical prob. [Archive] - Hummer H2 Forum: H2 forums

Intermittent Radio and electrical prob.

peakw
07-21-2003, 02:33 PM
I have had my H2 for about 4 months. The problem is that the radio has been
Very intermittent. For instance the stereo comes on but no audio out of the speakers. If you disconnect the battery or let it set for awhile, it resets the computer and starts working again. The dealership said they have had quite a few with the same type of radio problem. They said that they replace it which usually fixes it. Not in this case, they replaced the stereo and mirrors last Friday. That night we went out to dinner and the stereo was working. When done with dinner turned the key and nothing out of the stereo. Blah, the Stereo would come on but no audio would come out of the speakers. Also if you press the OnStar it looks like it is working but still no audio.

If anyone has had a problem like this with the radio or battery dieing and could offer some advice I would greatly appreciate it.

Thanks,

KC

biglew
07-25-2003, 10:03 AM
Same here!!!:(

peakw
07-25-2003, 11:28 AM
They just replaced the radio for the second time on Tuesday. I'm still having the same problem. They are working with Hummer Technical Support. We'll See!

HUMTECH
09-16-2003, 10:59 PM
Condition
Some customers may comment that at times there is no audio out of any speakers. However, on the next key cycle the audio system may perform properly.

Cause
An anomaly within the amplifier/radio operating systems may cause this condition.

Correction

Important
Pay particular attention to this correction procedure, it is somewhat complicated. The repair varies based on the vehicle sound system. Refer to the Service Parts Identification (SPID) Label of the vehicle being repaired. The type of sound system in the vehicle will determine the repair procedure.


Determine the regular production option (RPO) code of the sound system in the vehicle from the SPID label.
Install the Tech 2® to the vehicle DLC and determine the part number of the radio software and the amplifier part number.
Refer to the tables below to determine the correct repair(s).
Silverado, Tahoe, Suburban, Avalanche, Express, Sierra (except Denali), Yukon (except Denali), Yukon XL (except Denali), Savana (with UB0, UB1 or UC6 Sound Systems without Y91 Option) If Radio Operational software is
Radio re-programming required?

15184928, or 15184929
YES

15100936, or 15100937
NO



Notice
BEFORE DISCONNECTING ANY AUDIO SYSTEM COMPONENT IN A VEHICLE WITH THE BOSE® AUDIO SYSTEM, THE 30 AMP AMPLIFIER FUSE MUST BE REMOVED FROM THE ENGINE WIRING HARNESS JUNCTION BLOCK. Failure to remove the 30 AMP fuse from the UBEC can result in a damaged Bose® amplifier.



Important
DETERMINE THE SOFTWARE NUMBER OF THE RADIO AND THE AMPLIFIER. THE RADIO MAY NEED REPROGRAMMING, OR THE AMPLIFIER MAY NEED REPLACEMENT ONLY. NOT ALL VEHICLES WILL NEED BOTH A RADIO REPROGRAMMING AND AMPLIFIER REPLACEMENT.


Yukon Denali, Yukon Denali XL, Sierra Denali, Escalade, Escalade EXT (with UQ7 Premium Sound System with Y91) If Radio Operational software is
Radio Re-programming required?
If Amplifier part number is
Install new Amplifier Part Number

15184928, or 15184929,
YES
--
--

15100936, or 15100937..
No
--
--

--
--
15054675 or 15188461
15191601



Notice
BEFORE DISCONNECTING ANY AUDIO SYSTEM COMPONENT IN A VEHICLE WITH THE BOSE® AUDIO SYSTEM, THE 30 AMP AMPLIFIER FUSE MUST BE REMOVED FROM THE ENGINE WIRING HARNESS JUNCTION BLOCK. Failure to remove the 30 AMP fuse from the UBEC can result in a damaged Bose® amplifier.



Important
DETERMINE THE SOFTWARE NUMBER OF THE RADIO AND THE AMPLIFIER. THE RADIO MAY NEED REPROGRAMMING, OR THE AMPLIFIER MAY NEED REPLACEMENT ONLY. NOT ALL VEHICLES WILL NEED BOTH A RADIO REPROGRAMMING AND AMPLIFIER REPLACEMENT.


HUMMER H2 Vehicles (with UQ7 Premium Sound System) If Radio Operational software is
Radio re-programing required?
If Amplifier part number is
Install new Amplifier Part Number

15064068, or 15064070
YES
--
--

15100936, or 15100937
NO
--
--

--
--
15177435
15188044


Parts Information
Part Number
Description
Qty

15191601
Amplifier

(All except HUMMER H2)
*

15188044
Amplifier

(HUMMER H2 only)
*


*Do not order an amplifier for stock. A limited number of units are available at this time. Order the amplifier on an as needed basis for the repair of a specific vehicle.

Reprogramming Software
The software necessary to reprogram the radio was released on TIS version 1.5, of January 2003.

Duramax Tim
10-01-2003, 06:56 AM
Hum tech is correct.
I had the software update to radio and still had problem.
2nd they replaced the Bose amp and it was fixed.
BTW when the speakers don't work the 2nd row headsets still work so the radio is OK.