Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P1129 OBD Code Description

Downstream Oxygen Sensors Swapped from Bank to Bank is one of the Definitions for the P1129; however your vehicle’s manufacturer may have a different Definition for the P1129 code. Please check below for your specific make.

P1129 Information for specific makes

P1129
P1129
P1129
P1129
P1129
P1129
P1129
P1129
P1129
P1129
P1129