DTC    P0136    Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2)

DESCRIPTION

CONFIRMATION DRIVING PATTERN

WIRING DIAGRAM

INSPECTION PROCEDURE

READ OUTPUT DTC

READ VALUE USING INTELLIGENT TESTER (OUTPUT VOLTAGE OF HEATED OXYGEN SENSOR)

INSPECT HEATED OXYGEN SENSOR (CHECK FOR SHORT)

CHECK HARNESS AND CONNECTOR (CHECK FOR SHORT)

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (INJECTION VOLUME)

INSPECT AIR FUEL RATIO SENSOR

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (INJECTION VOLUME)

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (INJECTION VOLUME)

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (CONTROL THE EGR STEP POSITION)

INSPECT EGR VALVE ASSEMBLY

CHECK FOR EXHAUST GAS LEAK

INSPECT HEATED OXYGEN SENSOR (HEATER RESISTANCE)

CHECK HARNESS AND CONNECTOR (HEATED OXYGEN SENSOR - ECM)

REPLACE HEATED OXYGEN SENSOR

CHECK WHETHER DTC OUTPUT RECURS (DTC P0136, P0137 OR P0138)

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (CONTROL THE EGR STEP POSITION)

INSPECT EGR VALVE ASSEMBLY

REPLACE AIR FUEL RATIO SENSOR

CHECK WHETHER DTC OUTPUT RECURS (DTC P0136, P0137 OR P0138)

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (CONTROL THE EGR STEP POSITION)

INSPECT EGR VALVE ASSEMBLY