M/T

DTC P0133 - FRONT OXYGEN (A/F) SENSOR CIRCUIT SLOW RESPONSE

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

10P1: CHECK ANY OTHER DTC ON DISPLAY.

CHECK: Does the Subaru Select Monitor or OBD-II general scan tool indicate DTC P1130, P1131, P113Z P1133 or P1134?

YES: Inspect DTC P1130, P1131, P1132, P1133 or P1134 using "10. Diagnostics Chart with Trouble Code for MT Vehicles".

NOTE: In this case, it is not necessary to inspect DTC P0133.

NO: Go to step 10P2.

10P2: CHECK EXHAUST SYSTEM

NOTE: Check the following items.
- Loose installation of front portion of exhaust pipe onto cylinder heads
- Loose connection between front exhaust pipe and front catalytic converter
- Damage of exhaust pipe resulting in a hole

CHECK: Is there a fault in exhaust system?

YES: Repair exhaust system.

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