Diagnostic Aids
WARNING: This page is about a different car, the 1997 Buick Regal and 1997 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
The following conditions may cause an intermittent: Intermittent short or open in circuit No. 1073 (Black/White wire) or No. 1074 (Purple/White wire); poor connections; or dirty key resistor contacts. If DTC B2722 or B2723 is set, BCM's ability to properly read PASS-Key(R) II resistance value will be affected.