Symptoms

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

P1143 Description

Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 1 is one of the definitions for the P1143; however your vehicle’s manufacturer may have a different definition for the P1143 code. Please check below for your specific make.

P1143 Information for specific makes

P1143 AUDI
P1143 SUBARU
P1143 BUICK
P1143 CADILLAC
P1143 CHEVROLET
P1143 GMC
P1143 INFINITI
P1143 NISSAN
P1143 VOLKSWAGEN
P1143 CHRYSLER
P1143 DODGE
P1143 JEEP