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Home >> Saturn >> 2002 >> SC2 Automatic, MP6 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Theft Deterrent System -- "S" Series >> Diagnostic Information and Procedures >> DTC P1630 >> Diagnostic Aids

Diagnostic Aids

Diagnose any U-type communication or BCM passlock/BCM voltage DTCs first.

This DTC indicates the PCM received an incorrect password and learn mode is enabled.

The passlock sensor, BCM and PCM contain the same passlock codes. If any of these components are replaced, a relearn procedure must be performed.

Fig 1: Theft Deterrent Learn Mode Active Chart
GM874321Courtesy of GENERAL MOTORS CORP.
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