Sierra 1500 2WD V8-5.3L Hybrid (2004)
Steps 24 - 29
The numbers below refer to the step numbers on the diagnostic table.
2. A partial malfunction in the class 2 serial data circuit uses a different procedure from a total malfunction of the class 2 serial data circuit. The
following modules communicate on the class 2 serial data circuit:
-
The audio amplifier (AMP). early production.Refer to Radio/Audio System Description and Operation in Radio, Stereo and Compact Disc for
more information.
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The body control module (BCM)
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The CD changer (CDX)
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The driver door module (DDM)
