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Home >> Pontiac >> 2007 >> Torrent AWD >> Repair and Diagnosis >> Steering >> Power Steering System >> Diagnostic Information and Procedures >> DTC C0561 >> Circuit/System Description

Circuit/System Description

The PSCM monitors vehicle speed validity message from the engine control module (ECM) via the GMLAN serial data circuit. The power steering control module (PSCM) uses this vehicle speed message, along with the torque sensor and motor rotational sensor inputs, to determine the desired amount of steering assist.

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