Multiple electrical issues

2004 CHEVROLET TRAILBLAZER
133,000 MILES • 4.2L • V6 • 4WD • AUTOMATIC
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BLESS2SUCCESS
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My power windows, stereo, air condition, power doors, inside lights are not working even when the vehicle is start up

What can this issue be? I checked all my fuses, battery and alternator and they are good.
Feb 3, 2019 at 3:35 PM
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ASEMASTER6371
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Good evening,

All these items are controlled by the body control module.

You need a scan tool that can monitor the actions of the module to see if signals are being sent when commanded. You will need an advanced scan tool that will read the body control module.

Are there any codes stored?



Roy
Feb 3, 2019 at 3:46 PM
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BLESS2SUCCESS
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I had use my scan tool earlier and it read no codes.
Feb 3, 2019 at 4:13 PM
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ASEMASTER6371
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Can you read the body control module?

Roy
Feb 3, 2019 at 4:20 PM
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BLESS2SUCCESS
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No.
Feb 3, 2019 at 4:21 PM
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ASEMASTER6371
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You need to either have someone check it for you or see if you can get one.

Roy
Feb 3, 2019 at 4:23 PM
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BLESS2SUCCESS
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So the Body Control Module maybe causing these issues ? And I may need to purchase a new one?
Feb 3, 2019 at 4:25 PM
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ASEMASTER6371
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I did not say that. There tests to verify it, but you need the scan tool to verify.

It would be an expensive guess.

Roy
Feb 3, 2019 at 4:37 PM