DTC P0133 O2 Sensor Circuit Slow Response (Bank 1 Sensor 1)

WARNING: This page is about a different variant/trim than selected.

DTC DETECTING CONDITION:

Two consecutive driving cycles with fault
GENERAL DESCRIPTION < Ref. to DTC P0133 O2 SENSOR CIRCUIT SLOW RESPONSE (BANK 1 SENSOR 1) , Diagnostic Trouble Code (DTC) Detecting Criteria. >

CAUTION: After repair or replacement of faulty parts, conduct Clear Memory Mode < Ref. to , OPERATION , Clear Memory Mode.> and Inspection Mode < Ref. to , OPERATION , Clear Memory Mode.>.

WIRING DIAGRAM:

Fig 1: Wiring Diagram - DTC P0133 O2 Sensor Circuit Slow Response (Bank 1 Sensor 1)

Courtesy of SUBARU OF AMERICA, INC.

DTC P0133 DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1. CHECK FOR ANY OTHER DTC ON DISPLAY.	Is any other DTC displayed?	Check DTC using "List of Diagnostic Trouble Code (DTC)". < Ref. to , LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . > NOTE: In this case, it is not necessary to inspect DTC P0133.	Go to step 2.
2. CHECK EXHAUST SYSTEM. NOTE: Check the following items. Loose installation of exhaust pipe Damage of exhaust pipe resulting in a hole	Is there any fault in exhaust system?	Repair or replace the faulty part.	Replace the front oxygen (A/F) sensor. < Ref. to FRONT OXYGEN (A/F) SENSOR . >