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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 P150C >> Circuit/System Description

Circuit/System Description

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The TCM and the engine control module (ECM) monitor the number of Engine Speed Request Circuit serial data messages transmitted/received between modules. If the ECM detects a faulty message count, DTC P0150C sets.

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