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Home >> Cadillac >> 2007 >> XLR Base >> Repair and Diagnosis >> Body & Frame >> Ignition Switch/Steering Lock >> Immobilizer System >> Diagnostic Information and Procedures >> DTC P1631 >> Circuit/System Verification

Circuit/System Verification

With a scan tool, verify DTC P1631 is not set.

If DTC is set, Perform the password learn procedure. If DTC resets, replace the ECM.

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