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DTC P0136 & P0156: Heated Oxygen Sensor Circuit: Notes

DTC P0136 & P0156 DEFINITION

DTC Definition
P0136 Heated Oxygen Sensor Circuit (Bank No. 1, Sensor No. 2)
P0156 Heated Oxygen Sensor Circuit (Bank No. 2, Sensor No. 2)
NOTE: Bank No. 1 refers to bank that includes cylinder No. 1. Bank No. 2 refers to bank without cylinder No. 1. Sensor No. 2 refers to sensor furthest from engine block.