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T-SB-0398-09December 23, 2009Engine Bank 1 and Bank 2 A/F and O2 IdentificationServiceCategoryEngine/Hybrid SystemSectionEngine ControlMarketUSAApplicabilityYEAR(S)MODEL(S)1993 – 20104Runner, Avalon,Camry, FJ Cruiser,Highlander, HighlanderHV, Land Cruiser,MR2 Spyder, RAV4,Sequoia, Sienna,Solara, Supra, T100,Tacoma, TundraADDITIONAL INFORMATIONTSB SUPERSESSION NOTICEThe information contained in this TSB supersedes TSB No. EG034-07. Applicability has been updated to include 2009 – 2010 model year vehicles and 2006 – 2010model year Highlander HV.TSB No. EG034-07 is Obsolete and any printed versions should be discarded. Be sure to reviewthe entire content of this service bulletin before proceeding.IntroductionThis service bulletin provides information on the proper identification of engine bank 1 and enginebank 2 for correct A/F sensor and oxygen sensor replacement.This bulletin contains information that identifies engine bank 1 and enginebank 2 on the following engines:1AZ-FE, 2AZ-FE, 2AZ-FE (PZEV), 1GR-FE, 2GR-FE, 2JZ-GE, 1MZ-FE, 3MZ-FE, 1UR-FE, 3UR-FE,2UZ-FE, 5VZ-FE, and 1ZZ-FE. Bank 1 (B1) refers to the bank that includes cylinder No. 1. Bank 2 (B2) refers to the bank opposite bank 1. Sensor 1 (S1) refers to the sensor that is located before the catalytic converters. Sensor 2 (S2) refers to the sensor that is located after the catalytic converters. 2009 Toyota Motor Sales, USAPage 1 of 7
December 23, 2009T-SB-0398-09Page 2 of 7Engine Bank 1 and Bank 2 A/F and O2 IdentificationWarranty InformationOP CODEDESCRIPTIONTIMEOFPT1T2N/ANot Applicable to Warranty––––Applicable VehiclesMODEL4RunnerAvalonCamryFJ CruiserHighlanderHighlander HVLand CruiserMR2 SpyderRAV4SequoiaSiennaSolaraMODEL YEARENGINE1996 – 20025VZ-FE2003 – 20101GR-FE2UZ-FE1995 – 20041MZ-FE3MZ-FE2005 – 20102GR-FE1994 – 20031MZ-FE2004 – 20061MZ-FE3MZ-FE2003 – 20062AZ-FE PZEV2008 – 20102GR-FE2007 – 20101GR-FE2001 – 20031MZ-FE2AZ-FE2004 – 20073MZ-FE2008 – 20102GR-FE2006 – 20103MZ-FE1998 – 20072UZ-FE2008 – 20103UR-FE2000 – 20051ZZ-FE2001 – 20031AZ-FE2006 – 20102GR-FE2001 – 20102UZ-FE2008 – 20103UR-FE1998 – 20031MZ-FE2004 – 20063MZ-FE2007 – 20102GR-FE1999 – 20031MZ-FE2004 – 20103MZ-FE 2009 Toyota Motor Sales, USA
T-SB-0398-09December 23, 2009Page 3 of 7Engine Bank 1 and Bank 2 A/F and O2 IdentificationApplicable Vehicles (Continued)MODELMODEL YEARENGINESupra1993 – 19982JZ-GE1995 – 20045VZ-FE2005 – 20101GR-FE1995 – 19985VZ-FE2000 – 20045VZ-FE2UZ-FE2005 – 20101GR-FE2UZ-FE2007 – 20103UR-FE/3UR-FBE20101UR-FETacomaT-100Tundra 2009 Toyota Motor Sales, USA
December 23, 2009T-SB-0398-09Page 4 of 7Engine Bank 1 and Bank 2 A/F and O2 IdentificationEngine Bank IdentificationFigure 1. Engine Bank Identification: 1UR-FE, 3UR-FE,2UZ-FEB2864Figure 2. Engine Bank Identification: 2GR-FE, 1MZ-FE,3MZ-FEB1B1135B23292571B1Bank 1Bank 2B1Bank 1B2B2Bank 21No. 1 Cylinder1No. 1 Cylinder2No. 2 Cylinder2No. 2 Cylinder3No. 3 Cylinder3No. 3 Cylinder4No. 4 Cylinder4No. 4 Cylinder5No. 5 Cylinder5No. 5 Cylinder6No. 6 Cylinder6No. 6 Cylinder7Front of Vehicle7No. 7 Cylinder8No. 8 Cylinder9Front of Vehicle 2009 Toyota Motor Sales, USA467
December 23, 2009T-SB-0398-09Page 5 of 7Engine Bank 1 and Bank 2 A/F and O2 IdentificationEngine Bank Identification (Continued)Figure 3. Engine Bank Identification: 1GR-FE, 5VZ-FEB1Figure 4. Engine Bank Identification: 2JZ-GEB2B2B165431271B1Bank 1B2Bank 21No. 1 Cylinder2No. 2 Cylinder3No. 3 Cylinder4No. 4 Cylinder5No. 5 Cylinder6No. 6 Cylinder7Front of VehicleB1Bank 1B2Bank 21 2009 Toyota Motor Sales, USAFront of Vehicle
December 23, 2009T-SB-0398-09Page 6 of 7Engine Bank 1 and Bank 2 A/F and O2 IdentificationEngine Bank Identification (Continued)Figure 5. Engine Bank Identification: 1ZZ-FEFigure 6. Engine Bank Identification: 1AZ-FEB2B2B1B1Bank 1B2Bank 2B1Bank 1B2Bank 2Figure 7. Engine Bank Identification: 2AZ-FEB2B1B1Bank 1B2Bank 2 2009 Toyota Motor Sales, USAB1
December 23, 2009T-SB-0398-09Page 7 of 7Engine Bank 1 and Bank 2 A/F and O2 IdentificationA/F and O2 Sensor IdentificationFigure 8. Sensor Identification: FWD V61235614A/F Sensor (Bank 2, Sensor 1) (B2, S1)4Heated Oxygen Sensor (Bank 2, Sensor 2) (B2, S2)2A/F Sensor (Bank 1, Sensor 1) (B1, S1)5TWC3Heated Oxygen Sensor (Bank 1, Sensor 2) (B1, S2)6Front of VehicleFigure 9. Sensor Identification: 2AZ-FE PZEV32415671Warm-up Catalyst (Front Catalyst)5Heated Oxygen Sensor 2 (Bank 1, Sensor 2)2A/F Sensor (Bank 1, Sensor 1)6Heated Oxygen Sensor 3 (Bank 1, Sensor 3)3Fuel Injector74Intake Manifold Runner ValveUnder Floor Catalyst (Rear Catalyst)(HC Absorptive 3-Way Catalyst) 2009 Toyota Motor Sales, USA
Bank 1 (B1) refers to the bank that includes cylinder No. 1. Bank 2 (B2) refers to the bank opposite bank 1. Sensor 1 (S1) refers to the sensor that is located before the catalytic converters. Sensor 2 (S2) refers to the sensor that is located after the catalytic converters. 2009 Toyota Motor Sales, USA Page 1
