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Home >> Saturn >> 2007 >> Sky Base, Standard >> Repair and Diagnosis >> Body & Frame >> Ignition Switch/Steering Lock >> Immobilizer System >> Diagnostic Information and Procedures >> DTC P1632 >> Circuit/System Description

Circuit/System Description

The theft deterrent module (TDM) sends the fuel enable password to the engine control module (ECM) via the serial data circuit. If the password sent by the TDM equals the password stored in the ECM, the ECM will allow vehicle starting.

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