Impala V6-3.8L SC VIN 1 (2005)
Steps 27 - 35
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:
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Auxiliary power drop connector
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BCM
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Driver information center (DIC)
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Electronic brake control module (EBCM)
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Instrument panel cluster (IPC)
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Powertrain control module (PCM)
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Radio
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OnStar (UE1)
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Sensing and diagnostic module (SDM)