What does code P0432 mean?

Main Catalyst Efficiency Below Threshold (Bank 2): The main catalytic converter on bank 2 has reduced efficiency.

P0432 is rated as medium severity. Schedule service — affects performance or emissions.

P0432

Main Catalyst Efficiency Below Threshold (Bank 2)

Powertrain Code · Medium

What does P0432 mean?

The main catalytic converter on bank 2 has reduced efficiency.

System: Catalytic Converter

P0432 is a powertrain diagnostic trouble code indicating main catalyst efficiency below threshold (bank 2). This code is classified as medium severity, which means: schedule service — affects performance or emissions.

Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your vehicle.