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2025
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Silverado EV RST
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Repair and Diagnosis
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Electrical
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Charging Systems
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Plug-In Charging
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Diagnostic Information and Procedures
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DTC P328A
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Circuit/System Verification
Circuit/System Verification
Vehicle On
Verify DTC P328A is not set
If DTC P328A is set
Replace the component: T18 Battery Charger
Go to next step: If DTC P328A is not set
All OK.