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Home >> Chevrolet >> 2011 >> Impala LS, 3.9 M >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 21 (Automatic Transmission - 4T65-E - DTC PO218 Through DTC P2534) >> DTC P0851 or P0852 >> Conditions for Setting the DTC >> P0852

Conditions for Setting the DTC: P0852

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The ECM detects In Gear, the Park/Neutral switch signal equals 12 volts, High, when the IMS reports a Park/Neutral range for 3 seconds.