|
|
P0138, P0158 HO2S2 EC-683 < DTC/CIRCUIT DIAGNOSIS > [VQ40DE FOR USA AND CANADA] C D E F G H I J K L M A EC N P O 1. Disconnect heated oxygen sensor 2 harness connector. 2. Disconnect ECM harness connector. 3. Check harness continuity between HO2S2 terminal 1 and ECM terminal 59. Refer to Wiring Diagram. 4. Also check harness for short to ground and short to power. OK >> GO TO 3. NG >> Repair open circuit or short to ground or short to power in harness or connectors. 3. CHECK HO2S2 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 1. Check harness continuity between ECM terminal and HO2S2 terminal as follows. Refer to Wiring Diagram. 2. Check harness continuity between the following terminals and ground. Refer to Wiring Diagram. Continuity should exist. BBIA0540E DTC Terminals Bank ECM Sensor P0138 57 2 1 P0158 58 2 2 Continuity should exist. DTC Terminals Bank ECM Sensor P0138 57 2 1 P0158 58 2 2 Continuity should not exist. |