DTC P0430: Bank 2 Catalyst System - Low Efficiency: Condition
WARNING: This page is about a different car, the 2002 Suzuki XL-7. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0430 is set when value from Bank 2 Heated Oxygen Sensor (HO2S) No. 2 becomes close to value of Bank 2 HO2S No. 1. MIL is illuminated when Engine Control Module (ECM) detects malfunction during 2 consecutive drive cycles.