ENGINE (DIAGNOSTICS)(H4DOTC) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC P0134 O2 SENSOR CIRCUIT NO ACTIVITY DETECTED (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:

• LHD model

• RHD model

STEPCHECKYESNO

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

1) Turn the ignition switch to OFF.

2) Disconnect the connector from ECM and front oxygen (A/F) sensor connector.

3) Measure the resistance of harness between ECM and front oxygen (A/F) sensor connector.

Connector & terminal

(B135) No. 8 — (B262) No. 3:

(B135) No. 9 — (B262) No. 4:

Is the resistance less than 1 Ω?

Replace the front oxygen (A/F) sensor.

Repair the open circuit of harness between ECM and front oxygen (A/F) sensor connector.