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Home >> Saturn >> 2000 >> LS2 Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1630: Theft Deterrent System - ECM In Learn Mode >> Circuit Description

Circuit Description

When ignition is turned on, ECM illuminates the MIL (bulb check). The voltage change on MIL control circuit is used as wake up signal to theft deterrent module. This DTC indicates that theft deterrent module has detected a problem within the theft deterrent module during initialization.

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