A/T

DTC P1131 - FRONT OXYGEN (A/F) SENSOR CIRCUIT MALFUNCTION (SHORT CIRCUIT)

DTC DETECTING CONDITION:
- Two consecutive driving cycles with fault

CAUTION: After repair or replacement of faulty parts, conduct CLEAR MEMORY MODE and INSPECTION MODE. Refer to How To Clear Diagnostic Trouble Codes.

Wiring Diagram:

WIRING DIAGRAM

11BX1: CHECK HARNESS BETWEEN ECM AND FRONT OXYGEN (A/F) SENSOR CONNECTOR.

1. Turn ignition switch to OFF.
2. Disconnect connector from ECM.

Connector & Terminal - [(B136) No.6 - Chassis Ground, (B136) No.7 - Chassis Ground, (B136) No.19 - Chassis Ground, (B136) No.20 - Chassis Ground]:

3. Measure resistance of harness between ECM connector and chassis ground.

CHECK: Is the resistance more than 10 Ohms?

YES: Replace front oxygen (A/F) sensor.

NO: Repair ground short circuit in harness between ECM and front oxygen (A/F) sensor connector.