Engine Bank 1 and Bank 2 AF and O2 Identification

T-SB-0398-09December23,2009

Engine Bank1and Bank2A/F and O2Identi?cation

Service

Category Engine/Hybrid System

Section Engine Control Market USA

Applicability

YEAR(S)MODEL(S)ADDITIONAL INFORMATION

1993–20104Runner,Avalon,

Camry,FJ Cruiser,

Highlander,Highlander

HV,Land Cruiser,

MR2Spyder,RAV4,

Sequoia,Sienna,

Solara,Supra,T100,

T acoma,T undra

TSB SUPERSESSION NOTICE

The information contained in this TSB supersedes TSB No.EG034-07.

?Applicability has been updated to include2009–2010model year vehicles and2006–2010 model year Highlander HV.

TSB No.EG034-07is Obsolete and any printed versions should be discarded.Be sure to review

the entire content of this service bulletin before proceeding.

Introduction

This service bulletin provides information on the proper identi?cation of engine bank1and engine

bank2for correct A/F sensor and oxygen sensor replacement.

This bulletin contains information that identi?es engine bank1and engine

bank2on 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,and1ZZ-FE.

?Bank1(B1)refers to the bank that includes cylinder No.1.

?Bank2(B2)refers to the bank opposite bank1.

?Sensor1(S1)refers to the sensor that is located before the catalytic converters.

?Sensor2(S2)refers to the sensor that is located after the catalytic converters.

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Engine Bank1and Bank2A/F and O2Identi?cation

Warranty Information

OP CODE DESCRIPTION TIME OFP T1T2

N/A Not Applicable to Warranty––––

Applicable Vehicles

MODEL MODEL YEAR ENGINE

1996–20025VZ-FE

4Runner

2003–20101GR-FE 2UZ-FE

1995–20041MZ-FE 3MZ-FE

Avalon

2005–20102GR-FE

1994–20031MZ-FE

2004–20061MZ-FE 3MZ-FE

2003–20062AZ-FE PZEV Camry

2008–20102GR-FE FJ Cruiser2007–20101GR-FE

2001–20031MZ-FE 2AZ-FE

2004–20073MZ-FE Highlander

2008–20102GR-FE Highlander HV2006–20103MZ-FE

1998–20072UZ-FE Land Cruiser

2008–20103UR-FE MR2Spyder2000–20051ZZ-FE

2001–20031AZ-FE RAV4

2006–20102GR-FE

2001–20102UZ-FE Sequoia

2008–20103UR-FE

1998–20031MZ-FE

2004–20063MZ-FE Sienna

2007–20102GR-FE

1999–20031MZ-FE Solara

2004–20103MZ-FE

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Applicable Vehicles(Continued)

MODEL MODEL YEAR ENGINE

Supra1993–19982JZ-GE

1995–20045VZ-FE

T acoma

2005–20101GR-FE

T-1001995–19985VZ-FE

2000–20045VZ-FE 2UZ-FE

2005–20101GR-FE 2UZ-FE

2007–20103UR-FE/3UR-FBE T undra

20101UR-FE

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T-SB-0398-09December23,2009Page4of7 Engine Bank1and Bank2A/F and O2Identi?cation

Engine Bank Identi?cation

Figure1.Engine Bank Identi?cation:1UR-FE,3UR-FE,

2UZ-FE

B1Bank1

B2Bank2

1No.1Cylinder

2No.2Cylinder

3No.3Cylinder

4No.4

Cylinder 5No.5Cylinder 6No.6Cylinder 7No.7Cylinder 8No.8Cylinder 9Front of Vehicle

Figure2.Engine Bank Identi?cation:2GR-FE,1MZ-FE,

3MZ-FE

B1Bank1

B2Bank2

1No.1Cylinder

2No.2Cylinder

3No.3Cylinder

4No.4Cylinder

5No.5Cylinder

6No.6Cylinder

7Front of Vehicle

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Engine Bank 1and Bank 2A/F and O2Identi?cation

Engine Bank Identi?cation (Continued)

Figure 3.Engine Bank Identi?cation:1GR-FE,

5VZ-FE B1Bank 1B2

Bank 21

No.1Cylinder

2No.2Cylinder 3

No.3Cylinder 4

No.4Cylinder 5No.5Cylinder 6

No.6Cylinder 7Front of Vehicle Figure 4.Engine Bank Identi?cation:2JZ-GE

B1

Bank 1B2

Bank 21Front of Vehicle

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Engine Bank Identi?cation(Continued)

Figure5.Engine Bank Identi?cation:

1ZZ-FE

B1Bank1

B2Bank2Figure6.

Engine Bank Identi?cation:1AZ-FE

B1Bank1

B2Bank2

Figure7.Engine Bank Identi?cation:2AZ-FE

B1Bank1

B2Bank2

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Engine Bank 1and Bank 2A/F and O2Identi?cation

A/F and O2Sensor Identi?cation

Figure 8.Sensor Identi?cation:FWD

V6

1A/F Sensor (Bank 2,Sensor 1)(B2,S1)2A/F Sensor (Bank 1,Sensor 1)(B1,S1)

3

Heated Oxygen Sensor (Bank 1,Sensor 2)(B1,S2)

4Heated Oxygen Sensor (Bank 2,Sensor 2)(B2,S2)5TWC

6

Front of Vehicle

Figure 9.Sensor Identi?cation:2AZ-FE PZEV

1Warm-up Catalyst (Front Catalyst)2A/F Sensor (Bank 1,Sensor 1)3Fuel Injector

4

Intake Manifold Runner Valve

5Heated Oxygen Sensor 2(Bank 1,Sensor 2)6Heated Oxygen Sensor 3(Bank 1,Sensor 3)7

Under Floor Catalyst (Rear Catalyst)(HC Absorptive 3-Way Catalyst)

?2009T oyota Motor Sales,USA

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