P1130

DTC P1130- FRONT OXYGEN (A/F) SENSOR CIRCUIT MALFUNCTION (OPEN 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

11BW1: CHECK HARNESS BETWEEN ECM AND FRONT OXYGEN (A/F) SENSOR CONNECTOR.
1. Turn ignition switch to OFF.
2. Disconnect connectors from ECM and front oxygen (A/F) sensor connector.

Connector & terminal(B136) No.6 - (E24) No.1:(B136) No.7 - (E24) No.6:(B136) No.19 - (E24) No.3:(B136) No.20 - (E24) No.4.:

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

CHECK: Is the resistance less than 1 ohm?

YES: Go to step 11BW2.

NO: Repair harness and connector.

NOTE: In this case, repair the following:
- Open circuit in harness between ECM and front oxygen (A/F) sensor connector.
- Poor contact in front oxygen (A/F) sensor connector.
- Poor contact in ECM connector.

11BW2: CHECK POOR CONTACT.
Check poor contact in front oxygen (A/F) sensor connector.

CHECK: Is there poor contact in front oxygen (A/F) sensor connector?

YES: Repair poor contact in front oxygen (A/F) sensor connector.

NO: Replace front oxygen (A/F) sensor.