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Home >> Buick >> 1999 >> LeSabre V6-3.8L VIN K >> Repair and Diagnosis >> Powertrain Management >> Ignition System >> Knock Sensor >> Diagrams >> Diagnostic Aids >> Connector Repairs >> Connector Position Assurance Locks
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Connector Position Assurance Locks

The Connector Position Assurance (CPA) is a small plastic insert that fits through the locking tabs of all the SIR system electrical connectors. The CPA ensures that the connector halves cannot vibrate apart. You must have the CPA in place in order to ensure good contact between the SIR mating terminals.
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