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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 149 (ENGINE CONTROL SYSTEM - 3.8L - DTC P0220 To DTC P0449) >> DTC P0325, P0326, P0327 or P0332 >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: Always perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
DTC P0325, P0326, P0327 or P0332

Circuit Short to Ground High Resistance Open Short to Voltage Signal Performance
Knock Sensor Signal P0327 P0325, P0327 P0325, P0327 P0325, P0327 P0325
Low Reference P0327 P0327 P0327 P0325, P0327 P0325
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