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Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> External Pages >> Different car >> Section 659 (HVAC System - Manual) >> Diagnostic Information and Procedures >> DTC P0645 >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

P0645: The ECM or PCM detects an open on the control circuit of the A/C compressor clutch relay.

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