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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (ENGINE CONTROLS - 8.1L - DIAGNOSTICS (DTCs P0506-U0107)) >> DTC P0601-P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610 >> Circuit Description

Circuit Description

WARNING: This page is about a different variant/trim than selected.

This diagnostic applies to internal microprocessor integrity conditions within the powertrain control module (PCM). This diagnostic also addresses whether or not the PCM is not programmed.

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