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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 231 (Engine Controls - 3.9L - DTC P0442 To P2A01) >> DTC P2077 or P2078 >> Circuit/System Description >> Ground Circuit

Ground Circuit

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.

Ground circuit is supplied directly to the IMT valve assembly. This circuit provides ground for the micro-processor and the motor.

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