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Home >> GMC >> 2000 >> Envoy >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Self-Diagnostics - 4.3L >> Diagnostic Tests >> DTC P0602: Control Module Not Programmed >> Circuit Description
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Circuit Description

This DTC will set if a control module is installed without being programmed. During reprogramming and immediately after completion, this DTC will also be set. This DTC should be successfully cleared after following the reprogramming procedures. DTC will also set when no software data is present in the VCM.

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