ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC P0132 O2 SENSOR CIRCUIT HIGH VOLTAGE (BANK 1 SENSOR 1)

DTC DETECTING CONDITION:

Immediately at fault recognition

CAUTION:

After repairing or replacing the defective part, perform the Clear Memory Mode and Inspection Mode .

WIRING DIAGRAM:

STEPCHECKYESNO

1.CHECK FRONT OXYGEN (A/F) SENSOR CONNECTOR AND COUPLING CONNECTOR.

Does water enter the connector?

Remove water thoroughly from the connector.

2.CHECK HARNESS BETWEEN ECM AND FRONT OXYGEN (A/F) SENSOR CONNECTOR.

1) Disconnect the connector from front oxygen (A/F) sensor.

2) Turn the ignition switch to ON.

3) Measure the voltage of harness between ECM connector and chassis ground.

Connector & terminal

(B134) No. 18 (+) — Chassis ground (−):

(B134) No. 28 (+) — Chassis ground (−):

Is the voltage 8 V or more?

Repair the short to power supply in the harness between ECM and front oxygen (A/F) sensor connector.

Replace the front oxygen (A/F) sensor.