DTC P0136: Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2) Or DTC P0156: Oxygen Sensor Circuit Malfunction (Bank 2 Sensor 2): Notes

WARNING: This page is about a different car, the 2003 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If DTCs related to IAT sensor, HO2S, TP control motor and sensor, ECT sensor and VP sensor are output simultaneously, the E2 sensor ground circuit at terminal No. 28 (Brown/White wire) at ECM connector E5 may be open. See ENGINE PERFORMANCE in SYSTEM WIRING DIAGRAMS article in ELECTRICAL. For ECM electrical connector terminal identification, see Figure. It may be necessary to check Brown/White wire between splice E10 and terminal No. 28 at ECM connector E5. See Figure.