DTC P0141: Heated Oxygen Sensor No. 2 Heater Circuit: Notes

CAUTION: If ECM replacement is instructed in following tests, always ensure ECM connectors and ground circuits are okay. If either are defective, repair and repeat testing to confirm ECM malfunction.

NOTE: Heated oxygen sensor No. 2 is located on exhaust pipe in behind catalytic converter and may be referred to as bank No. 1 sensor No. 2.

NOTE: For component location, see appropriate illustration in THEORY & OPERATION article.