DTC P0136: O2 Circuit (Bank 1, Sensor 2)

P0136 - O2 CIRCUIT (BANK 1, SENSOR 2)

Description: This DTC sets when the PCM detects a concern with one of the circuits used to determine the oxygen content in the exhaust gas.
Possible Causes: HO2S circuit open SIGRTN circuit open Incorrect connections Damaged or corroded terminals Exhaust temperature significantly higher than expected Damaged HO2S
Diagnostic Aids: Inspect the connectors for signs of damage, water ingress, or corrosion.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to PINPOINT TEST DW .