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Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> External Pages >> Different car >> Section 651 (Battery, Charging System And Starting System) >> Diagnostic Information and Procedures >> DTC P1668 >> 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.

With the engine running the ECM detects a low voltage on the generator turn ON signal circuit for at least 15 seconds.

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