P1131

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. Clear Memory Mode




WIRING DIAGRAM

10BX1: 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 ohm?

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

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